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This catches EF BB BF (the UTF-8 BOM)\n *\n * @param {string} content with BOM\n * @return {string} content value without BOM\n */\n\n\nfunction stripBOM(content) {\n  if (content.charCodeAt(0) === 0xFEFF) {\n    content = content.slice(1);\n  }\n\n  return content;\n}\n\nmodule.exports = {\n  isArray: isArray,\n  isArrayBuffer: isArrayBuffer,\n  isBuffer: isBuffer,\n  isFormData: isFormData,\n  isArrayBufferView: isArrayBufferView,\n  isString: isString,\n  isNumber: isNumber,\n  isObject: isObject,\n  isPlainObject: isPlainObject,\n  isUndefined: isUndefined,\n  isDate: isDate,\n  isFile: isFile,\n  isBlob: isBlob,\n  isFunction: isFunction,\n  isStream: isStream,\n  isURLSearchParams: isURLSearchParams,\n  isStandardBrowserEnv: isStandardBrowserEnv,\n  forEach: forEach,\n  merge: merge,\n  extend: extend,\n  trim: trim,\n  stripBOM: stripBOM\n};","module.exports = require(\"regenerator-runtime\");\n","module.exports = function (module) {\n  if (!module.webpackPolyfill) {\n    module.deprecate = function () {};\n\n    module.paths = []; // module.parent = undefined by default\n\n    if (!module.children) module.children = [];\n    Object.defineProperty(module, \"loaded\", {\n      enumerable: true,\n      get: function get() {\n        return module.l;\n      }\n    });\n    Object.defineProperty(module, \"id\", {\n      enumerable: true,\n      get: function get() {\n        return module.i;\n      }\n    });\n    module.webpackPolyfill = 1;\n  }\n\n  return module;\n};","/* globals __webpack_amd_options__ */\nmodule.exports = __webpack_amd_options__;\n","'use strict';\n\nmodule.exports = function bind(fn, thisArg) {\n  return function wrap() {\n    var args = new Array(arguments.length);\n\n    for (var i = 0; i < args.length; i++) {\n      args[i] = arguments[i];\n    }\n\n    return fn.apply(thisArg, args);\n  };\n};","'use strict';\n\nvar utils = require('./../utils');\n\nfunction encode(val) {\n  return encodeURIComponent(val).replace(/%3A/gi, ':').replace(/%24/g, '$').replace(/%2C/gi, ',').replace(/%20/g, '+').replace(/%5B/gi, '[').replace(/%5D/gi, ']');\n}\n/**\n * Build a URL by appending params to the end\n *\n * @param {string} url The base of the url (e.g., http://www.google.com)\n * @param {object} [params] The params to be appended\n * @returns {string} The formatted url\n */\n\n\nmodule.exports = function buildURL(url, params, paramsSerializer) {\n  /*eslint no-param-reassign:0*/\n  if (!params) {\n    return url;\n  }\n\n  var serializedParams;\n\n  if (paramsSerializer) {\n    serializedParams = paramsSerializer(params);\n  } else if (utils.isURLSearchParams(params)) {\n    serializedParams = params.toString();\n  } else {\n    var parts = [];\n    utils.forEach(params, function serialize(val, key) {\n      if (val === null || typeof val === 'undefined') {\n        return;\n      }\n\n      if (utils.isArray(val)) {\n        key = key + '[]';\n      } else {\n        val = [val];\n      }\n\n      utils.forEach(val, function parseValue(v) {\n        if (utils.isDate(v)) {\n          v = v.toISOString();\n        } else if (utils.isObject(v)) {\n          v = JSON.stringify(v);\n        }\n\n        parts.push(encode(key) + '=' + encode(v));\n      });\n    });\n    serializedParams = parts.join('&');\n  }\n\n  if (serializedParams) {\n    var hashmarkIndex = url.indexOf('#');\n\n    if (hashmarkIndex !== -1) {\n      url = url.slice(0, hashmarkIndex);\n    }\n\n    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;\n  }\n\n  return url;\n};","'use strict';\n\nmodule.exports = function isCancel(value) {\n  return !!(value && value.__CANCEL__);\n};","'use strict';\n\nvar utils = require('./utils');\n\nvar normalizeHeaderName = require('./helpers/normalizeHeaderName');\n\nvar DEFAULT_CONTENT_TYPE = {\n  'Content-Type': 'application/x-www-form-urlencoded'\n};\n\nfunction setContentTypeIfUnset(headers, value) {\n  if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {\n    headers['Content-Type'] = value;\n  }\n}\n\nfunction getDefaultAdapter() {\n  var adapter;\n\n  if (typeof XMLHttpRequest !== 'undefined') {\n    // For browsers use XHR adapter\n    adapter = require('./adapters/xhr');\n  } else if (typeof process !== 'undefined' && Object.prototype.toString.call(process) === '[object process]') {\n    // For node use HTTP adapter\n    adapter = require('./adapters/http');\n  }\n\n  return adapter;\n}\n\nvar defaults = {\n  adapter: getDefaultAdapter(),\n  transformRequest: [function transformRequest(data, headers) {\n    normalizeHeaderName(headers, 'Accept');\n    normalizeHeaderName(headers, 'Content-Type');\n\n    if (utils.isFormData(data) || utils.isArrayBuffer(data) || utils.isBuffer(data) || utils.isStream(data) || utils.isFile(data) || utils.isBlob(data)) {\n      return data;\n    }\n\n    if (utils.isArrayBufferView(data)) {\n      return data.buffer;\n    }\n\n    if (utils.isURLSearchParams(data)) {\n      setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');\n      return data.toString();\n    }\n\n    if (utils.isObject(data)) {\n      setContentTypeIfUnset(headers, 'application/json;charset=utf-8');\n      return JSON.stringify(data);\n    }\n\n    return data;\n  }],\n  transformResponse: [function transformResponse(data) {\n    /*eslint no-param-reassign:0*/\n    if (typeof data === 'string') {\n      try {\n        data = JSON.parse(data);\n      } catch (e) {\n        /* Ignore */\n      }\n    }\n\n    return data;\n  }],\n\n  /**\n   * A timeout in milliseconds to abort a request. If set to 0 (default) a\n   * timeout is not created.\n   */\n  timeout: 0,\n  xsrfCookieName: 'XSRF-TOKEN',\n  xsrfHeaderName: 'X-XSRF-TOKEN',\n  maxContentLength: -1,\n  maxBodyLength: -1,\n  validateStatus: function validateStatus(status) {\n    return status >= 200 && status < 300;\n  }\n};\ndefaults.headers = {\n  common: {\n    'Accept': 'application/json, text/plain, */*'\n  }\n};\nutils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {\n  defaults.headers[method] = {};\n});\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);\n});\nmodule.exports = defaults;","'use strict';\n\nvar utils = require('./../utils');\n\nvar settle = require('./../core/settle');\n\nvar cookies = require('./../helpers/cookies');\n\nvar buildURL = require('./../helpers/buildURL');\n\nvar buildFullPath = require('../core/buildFullPath');\n\nvar parseHeaders = require('./../helpers/parseHeaders');\n\nvar isURLSameOrigin = require('./../helpers/isURLSameOrigin');\n\nvar createError = require('../core/createError');\n\nmodule.exports = function xhrAdapter(config) {\n  return new Promise(function dispatchXhrRequest(resolve, reject) {\n    var requestData = config.data;\n    var requestHeaders = config.headers;\n\n    if (utils.isFormData(requestData)) {\n      delete requestHeaders['Content-Type']; // Let the browser set it\n    }\n\n    var request = new XMLHttpRequest(); // HTTP basic authentication\n\n    if (config.auth) {\n      var username = config.auth.username || '';\n      var password = config.auth.password ? unescape(encodeURIComponent(config.auth.password)) : '';\n      requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);\n    }\n\n    var fullPath = buildFullPath(config.baseURL, config.url);\n    request.open(config.method.toUpperCase(), buildURL(fullPath, config.params, config.paramsSerializer), true); // Set the request timeout in MS\n\n    request.timeout = config.timeout; // Listen for ready state\n\n    request.onreadystatechange = function handleLoad() {\n      if (!request || request.readyState !== 4) {\n        return;\n      } // The request errored out and we didn't get a response, this will be\n      // handled by onerror instead\n      // With one exception: request that using file: protocol, most browsers\n      // will return status as 0 even though it's a successful request\n\n\n      if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {\n        return;\n      } // Prepare the response\n\n\n      var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;\n      var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response;\n      var response = {\n        data: responseData,\n        status: request.status,\n        statusText: request.statusText,\n        headers: responseHeaders,\n        config: config,\n        request: request\n      };\n      settle(resolve, reject, response); // Clean up request\n\n      request = null;\n    }; // Handle browser request cancellation (as opposed to a manual cancellation)\n\n\n    request.onabort = function handleAbort() {\n      if (!request) {\n        return;\n      }\n\n      reject(createError('Request aborted', config, 'ECONNABORTED', request)); // Clean up request\n\n      request = null;\n    }; // Handle low level network errors\n\n\n    request.onerror = function handleError() {\n      // Real errors are hidden from us by the browser\n      // onerror should only fire if it's a network error\n      reject(createError('Network Error', config, null, request)); // Clean up request\n\n      request = null;\n    }; // Handle timeout\n\n\n    request.ontimeout = function handleTimeout() {\n      var timeoutErrorMessage = 'timeout of ' + config.timeout + 'ms exceeded';\n\n      if (config.timeoutErrorMessage) {\n        timeoutErrorMessage = config.timeoutErrorMessage;\n      }\n\n      reject(createError(timeoutErrorMessage, config, 'ECONNABORTED', request)); // Clean up request\n\n      request = null;\n    }; // Add xsrf header\n    // This is only done if running in a standard browser environment.\n    // Specifically not if we're in a web worker, or react-native.\n\n\n    if (utils.isStandardBrowserEnv()) {\n      // Add xsrf header\n      var xsrfValue = (config.withCredentials || isURLSameOrigin(fullPath)) && config.xsrfCookieName ? cookies.read(config.xsrfCookieName) : undefined;\n\n      if (xsrfValue) {\n        requestHeaders[config.xsrfHeaderName] = xsrfValue;\n      }\n    } // Add headers to the request\n\n\n    if ('setRequestHeader' in request) {\n      utils.forEach(requestHeaders, function setRequestHeader(val, key) {\n        if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {\n          // Remove Content-Type if data is undefined\n          delete requestHeaders[key];\n        } else {\n          // Otherwise add header to the request\n          request.setRequestHeader(key, val);\n        }\n      });\n    } // Add withCredentials to request if needed\n\n\n    if (!utils.isUndefined(config.withCredentials)) {\n      request.withCredentials = !!config.withCredentials;\n    } // Add responseType to request if needed\n\n\n    if (config.responseType) {\n      try {\n        request.responseType = config.responseType;\n      } catch (e) {\n        // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2.\n        // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function.\n        if (config.responseType !== 'json') {\n          throw e;\n        }\n      }\n    } // Handle progress if needed\n\n\n    if (typeof config.onDownloadProgress === 'function') {\n      request.addEventListener('progress', config.onDownloadProgress);\n    } // Not all browsers support upload events\n\n\n    if (typeof config.onUploadProgress === 'function' && request.upload) {\n      request.upload.addEventListener('progress', config.onUploadProgress);\n    }\n\n    if (config.cancelToken) {\n      // Handle cancellation\n      config.cancelToken.promise.then(function onCanceled(cancel) {\n        if (!request) {\n          return;\n        }\n\n        request.abort();\n        reject(cancel); // Clean up request\n\n        request = null;\n      });\n    }\n\n    if (!requestData) {\n      requestData = null;\n    } // Send the request\n\n\n    request.send(requestData);\n  });\n};","'use strict';\n\nvar enhanceError = require('./enhanceError');\n/**\n * Create an Error with the specified message, config, error code, request and response.\n *\n * @param {string} message The error message.\n * @param {Object} config The config.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n * @returns {Error} The created error.\n */\n\n\nmodule.exports = function createError(message, config, code, request, response) {\n  var error = new Error(message);\n  return enhanceError(error, config, code, request, response);\n};","'use strict';\n\nvar utils = require('../utils');\n/**\n * Config-specific merge-function which creates a new config-object\n * by merging two configuration objects together.\n *\n * @param {Object} config1\n * @param {Object} config2\n * @returns {Object} New object resulting from merging config2 to config1\n */\n\n\nmodule.exports = function mergeConfig(config1, config2) {\n  // eslint-disable-next-line no-param-reassign\n  config2 = config2 || {};\n  var config = {};\n  var valueFromConfig2Keys = ['url', 'method', 'data'];\n  var mergeDeepPropertiesKeys = ['headers', 'auth', 'proxy', 'params'];\n  var defaultToConfig2Keys = ['baseURL', 'transformRequest', 'transformResponse', 'paramsSerializer', 'timeout', 'timeoutMessage', 'withCredentials', 'adapter', 'responseType', 'xsrfCookieName', 'xsrfHeaderName', 'onUploadProgress', 'onDownloadProgress', 'decompress', 'maxContentLength', 'maxBodyLength', 'maxRedirects', 'transport', 'httpAgent', 'httpsAgent', 'cancelToken', 'socketPath', 'responseEncoding'];\n  var directMergeKeys = ['validateStatus'];\n\n  function getMergedValue(target, source) {\n    if (utils.isPlainObject(target) && utils.isPlainObject(source)) {\n      return utils.merge(target, source);\n    } else if (utils.isPlainObject(source)) {\n      return utils.merge({}, source);\n    } else if (utils.isArray(source)) {\n      return source.slice();\n    }\n\n    return source;\n  }\n\n  function mergeDeepProperties(prop) {\n    if (!utils.isUndefined(config2[prop])) {\n      config[prop] = getMergedValue(config1[prop], config2[prop]);\n    } else if (!utils.isUndefined(config1[prop])) {\n      config[prop] = getMergedValue(undefined, config1[prop]);\n    }\n  }\n\n  utils.forEach(valueFromConfig2Keys, function valueFromConfig2(prop) {\n    if (!utils.isUndefined(config2[prop])) {\n      config[prop] = getMergedValue(undefined, config2[prop]);\n    }\n  });\n  utils.forEach(mergeDeepPropertiesKeys, mergeDeepProperties);\n  utils.forEach(defaultToConfig2Keys, function defaultToConfig2(prop) {\n    if (!utils.isUndefined(config2[prop])) {\n      config[prop] = getMergedValue(undefined, config2[prop]);\n    } else if (!utils.isUndefined(config1[prop])) {\n      config[prop] = getMergedValue(undefined, config1[prop]);\n    }\n  });\n  utils.forEach(directMergeKeys, function merge(prop) {\n    if (prop in config2) {\n      config[prop] = getMergedValue(config1[prop], config2[prop]);\n    } else if (prop in config1) {\n      config[prop] = getMergedValue(undefined, config1[prop]);\n    }\n  });\n  var axiosKeys = valueFromConfig2Keys.concat(mergeDeepPropertiesKeys).concat(defaultToConfig2Keys).concat(directMergeKeys);\n  var otherKeys = Object.keys(config1).concat(Object.keys(config2)).filter(function filterAxiosKeys(key) {\n    return axiosKeys.indexOf(key) === -1;\n  });\n  utils.forEach(otherKeys, mergeDeepProperties);\n  return config;\n};","'use strict';\n/**\n * A `Cancel` is an object that is thrown when an operation is canceled.\n *\n * @class\n * @param {string=} message The message.\n */\n\nfunction Cancel(message) {\n  this.message = message;\n}\n\nCancel.prototype.toString = function toString() {\n  return 'Cancel' + (this.message ? ': ' + this.message : '');\n};\n\nCancel.prototype.__CANCEL__ = true;\nmodule.exports = Cancel;","function _typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\n/*\nTurbolinks 5.2.0\nCopyright © 2018 Basecamp, LLC\n */\n(function () {\n  var t = this;\n  (function () {\n    (function () {\n      this.Turbolinks = {\n        supported: function () {\n          return null != window.history.pushState && null != window.requestAnimationFrame && null != window.addEventListener;\n        }(),\n        visit: function visit(t, r) {\n          return e.controller.visit(t, r);\n        },\n        clearCache: function clearCache() {\n          return e.controller.clearCache();\n        },\n        setProgressBarDelay: function setProgressBarDelay(t) {\n          return e.controller.setProgressBarDelay(t);\n        }\n      };\n    }).call(this);\n  }).call(t);\n  var e = t.Turbolinks;\n  (function () {\n    (function () {\n      var t,\n          r,\n          n,\n          o = [].slice;\n      e.copyObject = function (t) {\n        var e, r, n;\n        r = {};\n\n        for (e in t) {\n          n = t[e], r[e] = n;\n        }\n\n        return r;\n      }, e.closest = function (e, r) {\n        return t.call(e, r);\n      }, t = function () {\n        var t, e;\n        return t = document.documentElement, null != (e = t.closest) ? e : function (t) {\n          var e;\n\n          for (e = this; e;) {\n            if (e.nodeType === Node.ELEMENT_NODE && r.call(e, t)) return e;\n            e = e.parentNode;\n          }\n        };\n      }(), e.defer = function (t) {\n        return setTimeout(t, 1);\n      }, e.throttle = function (t) {\n        var e;\n        return e = null, function () {\n          var r;\n          return r = 1 <= arguments.length ? o.call(arguments, 0) : [], null != e ? e : e = requestAnimationFrame(function (n) {\n            return function () {\n              return e = null, t.apply(n, r);\n            };\n          }(this));\n        };\n      }, e.dispatch = function (t, e) {\n        var r, o, i, s, a, u;\n        return a = null != e ? e : {}, u = a.target, r = a.cancelable, o = a.data, i = document.createEvent(\"Events\"), i.initEvent(t, !0, r === !0), i.data = null != o ? o : {}, i.cancelable && !n && (s = i.preventDefault, i.preventDefault = function () {\n          return this.defaultPrevented || Object.defineProperty(this, \"defaultPrevented\", {\n            get: function get() {\n              return !0;\n            }\n          }), s.call(this);\n        }), (null != u ? u : document).dispatchEvent(i), i;\n      }, n = function () {\n        var t;\n        return t = document.createEvent(\"Events\"), t.initEvent(\"test\", !0, !0), t.preventDefault(), t.defaultPrevented;\n      }(), e.match = function (t, e) {\n        return r.call(t, e);\n      }, r = function () {\n        var t, e, r, n;\n        return t = document.documentElement, null != (e = null != (r = null != (n = t.matchesSelector) ? n : t.webkitMatchesSelector) ? r : t.msMatchesSelector) ? e : t.mozMatchesSelector;\n      }(), e.uuid = function () {\n        var t, e, r;\n\n        for (r = \"\", t = e = 1; 36 >= e; t = ++e) {\n          r += 9 === t || 14 === t || 19 === t || 24 === t ? \"-\" : 15 === t ? \"4\" : 20 === t ? 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(this.notifyApplicationBeforeRequestStart(), this.setProgress(0), this.xhr.send(), this.sent = !0, \"function\" == typeof (t = this.delegate).requestStarted ? t.requestStarted() : void 0) : void 0;\n        }, r.prototype.cancel = function () {\n          return this.xhr && this.sent ? this.xhr.abort() : void 0;\n        }, r.prototype.requestProgressed = function (t) {\n          return t.lengthComputable ? this.setProgress(t.loaded / t.total) : void 0;\n        }, r.prototype.requestLoaded = function () {\n          return this.endRequest(function (t) {\n            return function () {\n              var e;\n              return 200 <= (e = t.xhr.status) && 300 > e ? t.delegate.requestCompletedWithResponse(t.xhr.responseText, t.xhr.getResponseHeader(\"Turbolinks-Location\")) : (t.failed = !0, t.delegate.requestFailedWithStatusCode(t.xhr.status, t.xhr.responseText));\n            };\n          }(this));\n        }, r.prototype.requestFailed = function () {\n          return this.endRequest(function (t) {\n            return function () {\n              return t.failed = !0, t.delegate.requestFailedWithStatusCode(t.constructor.NETWORK_FAILURE);\n            };\n          }(this));\n        }, r.prototype.requestTimedOut = function () {\n          return this.endRequest(function (t) {\n            return function () {\n              return t.failed = !0, t.delegate.requestFailedWithStatusCode(t.constructor.TIMEOUT_FAILURE);\n            };\n          }(this));\n        }, r.prototype.requestCanceled = function () {\n          return this.endRequest();\n        }, r.prototype.notifyApplicationBeforeRequestStart = function () {\n          return e.dispatch(\"turbolinks:request-start\", {\n            data: {\n              url: this.url,\n              xhr: this.xhr\n            }\n          });\n        }, r.prototype.notifyApplicationAfterRequestEnd = function () {\n          return e.dispatch(\"turbolinks:request-end\", {\n            data: {\n              url: this.url,\n              xhr: this.xhr\n            }\n          });\n        }, r.prototype.createXHR = function () {\n          return this.xhr = new XMLHttpRequest(), this.xhr.open(\"GET\", this.url, !0), this.xhr.timeout = 1e3 * this.constructor.timeout, this.xhr.setRequestHeader(\"Accept\", \"text/html, application/xhtml+xml\"), this.xhr.setRequestHeader(\"Turbolinks-Referrer\", this.referrer), this.xhr.onprogress = this.requestProgressed, this.xhr.onload = this.requestLoaded, this.xhr.onerror = this.requestFailed, this.xhr.ontimeout = this.requestTimedOut, this.xhr.onabort = this.requestCanceled;\n        }, r.prototype.endRequest = function (t) {\n          return this.xhr ? (this.notifyApplicationAfterRequestEnd(), null != t && t.call(this), this.destroy()) : void 0;\n        }, r.prototype.setProgress = function (t) {\n          var e;\n          return this.progress = t, \"function\" == typeof (e = this.delegate).requestProgressed ? e.requestProgressed(this.progress) : void 0;\n        }, r.prototype.destroy = function () {\n          var t;\n          return this.setProgress(1), \"function\" == typeof (t = this.delegate).requestFinished && t.requestFinished(), this.delegate = null, this.xhr = null;\n        }, r;\n      }();\n    }.call(this), function () {\n      var t = function t(_t2, e) {\n        return function () {\n          return _t2.apply(e, arguments);\n        };\n      };\n\n      e.ProgressBar = function () {\n        function e() {\n          this.trickle = t(this.trickle, this), this.stylesheetElement = this.createStylesheetElement(), this.progressElement = this.createProgressElement();\n        }\n\n        var r;\n        return r = 300, e.defaultCSS = \".turbolinks-progress-bar {\\n  position: fixed;\\n  display: block;\\n  top: 0;\\n  left: 0;\\n  height: 3px;\\n  background: #0076ff;\\n  z-index: 9999;\\n  transition: width \" + r + \"ms ease-out, opacity \" + r / 2 + \"ms \" + r / 2 + \"ms ease-in;\\n  transform: translate3d(0, 0, 0);\\n}\", e.prototype.show = function () {\n          return this.visible ? void 0 : (this.visible = !0, this.installStylesheetElement(), this.installProgressElement(), this.startTrickling());\n        }, e.prototype.hide = function () {\n          return this.visible && !this.hiding ? (this.hiding = !0, this.fadeProgressElement(function (t) {\n            return function () {\n              return t.uninstallProgressElement(), t.stopTrickling(), t.visible = !1, t.hiding = !1;\n            };\n          }(this))) : void 0;\n        }, e.prototype.setValue = function (t) {\n          return this.value = t, this.refresh();\n        }, e.prototype.installStylesheetElement = function () {\n          return document.head.insertBefore(this.stylesheetElement, document.head.firstChild);\n        }, e.prototype.installProgressElement = function () {\n          return this.progressElement.style.width = 0, this.progressElement.style.opacity = 1, document.documentElement.insertBefore(this.progressElement, document.body), this.refresh();\n        }, e.prototype.fadeProgressElement = function (t) {\n          return this.progressElement.style.opacity = 0, setTimeout(t, 1.5 * r);\n        }, e.prototype.uninstallProgressElement = function () {\n          return this.progressElement.parentNode ? 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this.showProgressBarAfterDelay() : this.showProgressBar();\n        }, r.prototype.visitRequestProgressed = function (t) {\n          return this.progressBar.setValue(t.progress);\n        }, r.prototype.visitRequestCompleted = function (t) {\n          return t.loadResponse();\n        }, r.prototype.visitRequestFailedWithStatusCode = function (t, e) {\n          switch (e) {\n            case n:\n            case o:\n              return this.reload();\n\n            default:\n              return t.loadResponse();\n          }\n        }, r.prototype.visitRequestFinished = function (t) {\n          return this.hideProgressBar();\n        }, r.prototype.visitCompleted = function (t) {\n          return t.followRedirect();\n        }, r.prototype.pageInvalidated = function () {\n          return this.reload();\n        }, r.prototype.showProgressBarAfterDelay = function () {\n          return this.progressBarTimeout = setTimeout(this.showProgressBar, this.controller.progressBarDelay);\n        }, r.prototype.showProgressBar = function () {\n          return this.progressBar.show();\n        }, r.prototype.hideProgressBar = function () {\n          return this.progressBar.hide(), clearTimeout(this.progressBarTimeout);\n        }, r.prototype.reload = function () {\n          return window.location.reload();\n        }, r;\n      }();\n    }.call(this), function () {\n      var t = function t(_t4, e) {\n        return function () {\n          return _t4.apply(e, arguments);\n        };\n      };\n\n      e.History = function () {\n        function r(e) {\n          this.delegate = e, this.onPageLoad = t(this.onPageLoad, this), this.onPopState = t(this.onPopState, this);\n        }\n\n        return r.prototype.start = function () {\n          return this.started ? 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(r = e.Location.wrap(window.location), o = i.restorationIdentifier, this.delegate.historyPoppedToLocationWithRestorationIdentifier(r, o)) : void 0;\n        }, r.prototype.onPageLoad = function (t) {\n          return e.defer(function (t) {\n            return function () {\n              return t.pageLoaded = !0;\n            };\n          }(this));\n        }, r.prototype.shouldHandlePopState = function () {\n          return this.pageIsLoaded();\n        }, r.prototype.pageIsLoaded = function () {\n          return this.pageLoaded || \"complete\" === document.readyState;\n        }, r.prototype.update = function (t, e, r) {\n          var n;\n          return n = {\n            turbolinks: {\n              restorationIdentifier: r\n            }\n          }, history[t + \"State\"](n, null, e);\n        }, r;\n      }();\n    }.call(this), function () {\n      e.HeadDetails = function () {\n        function t(t) {\n          var e, r, n, s, a, u;\n\n          for (this.elements = {}, n = 0, a = t.length; a > n; n++) {\n            u = t[n], u.nodeType === Node.ELEMENT_NODE && (s = u.outerHTML, r = null != (e = this.elements)[s] ? e[s] : e[s] = {\n              type: i(u),\n              tracked: o(u),\n              elements: []\n            }, r.elements.push(u));\n          }\n        }\n\n        var e, r, n, o, i;\n        return t.fromHeadElement = function (t) {\n          var e;\n          return new this(null != (e = null != t ? t.childNodes : void 0) ? e : []);\n        }, t.prototype.hasElementWithKey = function (t) {\n          return t in this.elements;\n        }, t.prototype.getTrackedElementSignature = function () {\n          var t, e;\n          return function () {\n            var r, n;\n            r = this.elements, n = [];\n\n            for (t in r) {\n              e = r[t].tracked, e && n.push(t);\n            }\n\n            return n;\n          }.call(this).join(\"\");\n        }, t.prototype.getScriptElementsNotInDetails = function (t) {\n          return this.getElementsMatchingTypeNotInDetails(\"script\", t);\n        }, t.prototype.getStylesheetElementsNotInDetails = function (t) {\n          return this.getElementsMatchingTypeNotInDetails(\"stylesheet\", t);\n        }, t.prototype.getElementsMatchingTypeNotInDetails = function (t, e) {\n          var r, n, o, i, s, a;\n          o = this.elements, s = [];\n\n          for (n in o) {\n            i = o[n], a = i.type, r = i.elements, a !== t || e.hasElementWithKey(n) || s.push(r[0]);\n          }\n\n          return s;\n        }, t.prototype.getProvisionalElements = function () {\n          var t, e, r, n, o, i, s;\n          r = [], n = this.elements;\n\n          for (e in n) {\n            o = n[e], s = o.type, i = o.tracked, t = o.elements, null != s || i ? t.length > 1 && r.push.apply(r, t.slice(1)) : r.push.apply(r, t);\n          }\n\n          return r;\n        }, t.prototype.getMetaValue = function (t) {\n          var e;\n          return null != (e = this.findMetaElementByName(t)) ? e.getAttribute(\"content\") : void 0;\n        }, t.prototype.findMetaElementByName = function (t) {\n          var r, n, o, i;\n          r = void 0, i = this.elements;\n\n          for (o in i) {\n            n = i[o].elements, e(n[0], t) && (r = n[0]);\n          }\n\n          return r;\n        }, i = function i(t) {\n          return r(t) ? \"script\" : n(t) ? \"stylesheet\" : void 0;\n        }, o = function o(t) {\n          return \"reload\" === t.getAttribute(\"data-turbolinks-track\");\n        }, r = function r(t) {\n          var e;\n          return e = t.tagName.toLowerCase(), \"script\" === e;\n        }, n = function n(t) {\n          var e;\n          return e = t.tagName.toLowerCase(), \"style\" === e || \"link\" === e && \"stylesheet\" === t.getAttribute(\"rel\");\n        }, e = function e(t, _e) {\n          var r;\n          return r = t.tagName.toLowerCase(), \"meta\" === r && t.getAttribute(\"name\") === _e;\n        }, t;\n      }();\n    }.call(this), function () {\n      e.Snapshot = function () {\n        function t(t, e) {\n          this.headDetails = t, this.bodyElement = e;\n        }\n\n        return t.wrap = function (t) {\n          return t instanceof this ? t : \"string\" == typeof t ? this.fromHTMLString(t) : this.fromHTMLElement(t);\n        }, t.fromHTMLString = function (t) {\n          var e;\n          return e = document.createElement(\"html\"), e.innerHTML = t, this.fromHTMLElement(e);\n        }, t.fromHTMLElement = function (t) {\n          var r, n, o, i;\n          return o = t.querySelector(\"head\"), r = null != (i = t.querySelector(\"body\")) ? i : document.createElement(\"body\"), n = e.HeadDetails.fromHeadElement(o), new this(n, r);\n        }, t.prototype.clone = function () {\n          return new this.constructor(this.headDetails, this.bodyElement.cloneNode(!0));\n        }, t.prototype.getRootLocation = function () {\n          var t, r;\n          return r = null != (t = this.getSetting(\"root\")) ? t : \"/\", new e.Location(r);\n        }, t.prototype.getCacheControlValue = function () {\n          return this.getSetting(\"cache-control\");\n        }, t.prototype.getElementForAnchor = function (t) {\n          try {\n            return this.bodyElement.querySelector(\"[id='\" + t + \"'], a[name='\" + t + \"']\");\n          } catch (e) {}\n        }, t.prototype.getPermanentElements = function () {\n          return this.bodyElement.querySelectorAll(\"[id][data-turbolinks-permanent]\");\n        }, t.prototype.getPermanentElementById = function (t) {\n          return this.bodyElement.querySelector(\"#\" + t + \"[data-turbolinks-permanent]\");\n        }, t.prototype.getPermanentElementsPresentInSnapshot = function (t) {\n          var e, r, n, o, i;\n\n          for (o = this.getPermanentElements(), i = [], r = 0, n = o.length; n > r; r++) {\n            e = o[r], t.getPermanentElementById(e.id) && i.push(e);\n          }\n\n          return i;\n        }, t.prototype.findFirstAutofocusableElement = function () {\n          return this.bodyElement.querySelector(\"[autofocus]\");\n        }, t.prototype.hasAnchor = function (t) {\n          return null != this.getElementForAnchor(t);\n        }, t.prototype.isPreviewable = function () {\n          return \"no-preview\" !== this.getCacheControlValue();\n        }, t.prototype.isCacheable = function () {\n          return \"no-cache\" !== this.getCacheControlValue();\n        }, t.prototype.isVisitable = function () {\n          return \"reload\" !== this.getSetting(\"visit-control\");\n        }, t.prototype.getSetting = function (t) {\n          return this.headDetails.getMetaValue(\"turbolinks-\" + t);\n        }, t;\n      }();\n    }.call(this), function () {\n      var t = [].slice;\n\n      e.Renderer = function () {\n        function e() {}\n\n        var r;\n        return e.render = function () {\n          var e, r, n, o;\n          return n = arguments[0], r = arguments[1], e = 3 <= arguments.length ? t.call(arguments, 2) : [], o = function (t, e, r) {\n            r.prototype = t.prototype;\n            var n = new r(),\n                o = t.apply(n, e);\n            return Object(o) === o ? o : n;\n          }(this, e, function () {}), o.delegate = n, o.render(r), o;\n        }, e.prototype.renderView = function (t) {\n          return this.delegate.viewWillRender(this.newBody), t(), this.delegate.viewRendered(this.newBody);\n        }, e.prototype.invalidateView = function () {\n          return this.delegate.viewInvalidated();\n        }, e.prototype.createScriptElement = function (t) {\n          var e;\n          return \"false\" === t.getAttribute(\"data-turbolinks-eval\") ? t : (e = document.createElement(\"script\"), e.textContent = t.textContent, e.async = !1, r(e, t), e);\n        }, r = function r(t, e) {\n          var r, n, o, i, s, a, u;\n\n          for (i = e.attributes, a = [], r = 0, n = i.length; n > r; r++) {\n            s = i[r], o = s.name, u = s.value, a.push(t.setAttribute(o, u));\n          }\n\n          return a;\n        }, e;\n      }();\n    }.call(this), function () {\n      var t,\n          r,\n          n = function n(t, e) {\n        function r() {\n          this.constructor = t;\n        }\n\n        for (var n in e) {\n          o.call(e, n) && (t[n] = e[n]);\n        }\n\n        return r.prototype = e.prototype, t.prototype = new r(), t.__super__ = e.prototype, t;\n      },\n          o = {}.hasOwnProperty;\n\n      e.SnapshotRenderer = function (e) {\n        function o(t, e, r) {\n          this.currentSnapshot = t, this.newSnapshot = e, this.isPreview = r, this.currentHeadDetails = this.currentSnapshot.headDetails, this.newHeadDetails = this.newSnapshot.headDetails, this.currentBody = this.currentSnapshot.bodyElement, this.newBody = this.newSnapshot.bodyElement;\n        }\n\n        return n(o, e), o.prototype.render = function (t) {\n          return this.shouldRender() ? (this.mergeHead(), this.renderView(function (e) {\n            return function () {\n              return e.replaceBody(), e.isPreview || e.focusFirstAutofocusableElement(), t();\n            };\n          }(this))) : this.invalidateView();\n        }, o.prototype.mergeHead = function () {\n          return this.copyNewHeadStylesheetElements(), this.copyNewHeadScriptElements(), this.removeCurrentHeadProvisionalElements(), this.copyNewHeadProvisionalElements();\n        }, o.prototype.replaceBody = function () {\n          var t;\n          return t = this.relocateCurrentBodyPermanentElements(), this.activateNewBodyScriptElements(), this.assignNewBody(), this.replacePlaceholderElementsWithClonedPermanentElements(t);\n        }, o.prototype.shouldRender = function () {\n          return this.newSnapshot.isVisitable() && this.trackedElementsAreIdentical();\n        }, o.prototype.trackedElementsAreIdentical = function () {\n          return this.currentHeadDetails.getTrackedElementSignature() === this.newHeadDetails.getTrackedElementSignature();\n        }, o.prototype.copyNewHeadStylesheetElements = function () {\n          var t, e, r, n, o;\n\n          for (n = this.getNewHeadStylesheetElements(), o = [], e = 0, r = n.length; r > e; e++) {\n            t = n[e], o.push(document.head.appendChild(t));\n          }\n\n          return o;\n        }, o.prototype.copyNewHeadScriptElements = function () {\n          var t, e, r, n, o;\n\n          for (n = this.getNewHeadScriptElements(), o = [], e = 0, r = n.length; r > e; e++) {\n            t = n[e], o.push(document.head.appendChild(this.createScriptElement(t)));\n          }\n\n          return o;\n        }, o.prototype.removeCurrentHeadProvisionalElements = function () {\n          var t, e, r, n, o;\n\n          for (n = this.getCurrentHeadProvisionalElements(), o = [], e = 0, r = n.length; r > e; e++) {\n            t = n[e], o.push(document.head.removeChild(t));\n          }\n\n          return o;\n        }, o.prototype.copyNewHeadProvisionalElements = function () {\n          var t, e, r, n, o;\n\n          for (n = this.getNewHeadProvisionalElements(), o = [], e = 0, r = n.length; r > e; e++) {\n            t = n[e], o.push(document.head.appendChild(t));\n          }\n\n          return o;\n        }, o.prototype.relocateCurrentBodyPermanentElements = function () {\n          var e, n, o, i, s, a, u;\n\n          for (a = this.getCurrentBodyPermanentElements(), u = [], e = 0, n = a.length; n > e; e++) {\n            i = a[e], s = t(i), o = this.newSnapshot.getPermanentElementById(i.id), r(i, s.element), r(o, i), u.push(s);\n          }\n\n          return u;\n        }, o.prototype.replacePlaceholderElementsWithClonedPermanentElements = function (t) {\n          var e, n, o, i, s, a, u;\n\n          for (u = [], o = 0, i = t.length; i > o; o++) {\n            a = t[o], n = a.element, s = a.permanentElement, e = s.cloneNode(!0), u.push(r(n, e));\n          }\n\n          return u;\n        }, o.prototype.activateNewBodyScriptElements = function () {\n          var t, e, n, o, i, s;\n\n          for (i = this.getNewBodyScriptElements(), s = [], e = 0, o = i.length; o > e; e++) {\n            n = i[e], t = this.createScriptElement(n), s.push(r(n, t));\n          }\n\n          return s;\n        }, o.prototype.assignNewBody = function () {\n          return document.body = this.newBody;\n        }, o.prototype.focusFirstAutofocusableElement = function () {\n          var t;\n          return null != (t = this.newSnapshot.findFirstAutofocusableElement()) ? t.focus() : void 0;\n        }, o.prototype.getNewHeadStylesheetElements = function () {\n          return this.newHeadDetails.getStylesheetElementsNotInDetails(this.currentHeadDetails);\n        }, o.prototype.getNewHeadScriptElements = function () {\n          return this.newHeadDetails.getScriptElementsNotInDetails(this.currentHeadDetails);\n        }, o.prototype.getCurrentHeadProvisionalElements = function () {\n          return this.currentHeadDetails.getProvisionalElements();\n        }, o.prototype.getNewHeadProvisionalElements = function () {\n          return this.newHeadDetails.getProvisionalElements();\n        }, o.prototype.getCurrentBodyPermanentElements = function () {\n          return this.currentSnapshot.getPermanentElementsPresentInSnapshot(this.newSnapshot);\n        }, o.prototype.getNewBodyScriptElements = function () {\n          return this.newBody.querySelectorAll(\"script\");\n        }, o;\n      }(e.Renderer), t = function t(_t5) {\n        var e;\n        return e = document.createElement(\"meta\"), e.setAttribute(\"name\", \"turbolinks-permanent-placeholder\"), e.setAttribute(\"content\", _t5.id), {\n          element: e,\n          permanentElement: _t5\n        };\n      }, r = function r(t, e) {\n        var r;\n        return (r = t.parentNode) ? r.replaceChild(e, t) : void 0;\n      };\n    }.call(this), function () {\n      var t = function t(_t6, e) {\n        function n() {\n          this.constructor = _t6;\n        }\n\n        for (var o in e) {\n          r.call(e, o) && (_t6[o] = e[o]);\n        }\n\n        return n.prototype = e.prototype, _t6.prototype = new n(), _t6.__super__ = e.prototype, _t6;\n      },\n          r = {}.hasOwnProperty;\n\n      e.ErrorRenderer = function (e) {\n        function r(t) {\n          var e;\n          e = document.createElement(\"html\"), e.innerHTML = t, this.newHead = e.querySelector(\"head\"), this.newBody = e.querySelector(\"body\");\n        }\n\n        return t(r, e), r.prototype.render = function (t) {\n          return this.renderView(function (e) {\n            return function () {\n              return e.replaceHeadAndBody(), e.activateBodyScriptElements(), t();\n            };\n          }(this));\n        }, r.prototype.replaceHeadAndBody = function () {\n          var t, e;\n          return e = document.head, t = document.body, e.parentNode.replaceChild(this.newHead, e), t.parentNode.replaceChild(this.newBody, t);\n        }, r.prototype.activateBodyScriptElements = function () {\n          var t, e, r, n, o, i;\n\n          for (n = this.getScriptElements(), i = [], e = 0, r = n.length; r > e; e++) {\n            o = n[e], t = this.createScriptElement(o), i.push(o.parentNode.replaceChild(t, o));\n          }\n\n          return i;\n        }, r.prototype.getScriptElements = function () {\n          return document.documentElement.querySelectorAll(\"script\");\n        }, r;\n      }(e.Renderer);\n    }.call(this), function () {\n      e.View = function () {\n        function t(t) {\n          this.delegate = t, this.htmlElement = document.documentElement;\n        }\n\n        return t.prototype.getRootLocation = function () {\n          return this.getSnapshot().getRootLocation();\n        }, t.prototype.getElementForAnchor = function (t) {\n          return this.getSnapshot().getElementForAnchor(t);\n        }, t.prototype.getSnapshot = function () {\n          return e.Snapshot.fromHTMLElement(this.htmlElement);\n        }, t.prototype.render = function (t, e) {\n          var r, n, o;\n          return o = t.snapshot, r = t.error, n = t.isPreview, this.markAsPreview(n), null != o ? this.renderSnapshot(o, n, e) : this.renderError(r, e);\n        }, t.prototype.markAsPreview = function (t) {\n          return t ? this.htmlElement.setAttribute(\"data-turbolinks-preview\", \"\") : this.htmlElement.removeAttribute(\"data-turbolinks-preview\");\n        }, t.prototype.renderSnapshot = function (t, r, n) {\n          return e.SnapshotRenderer.render(this.delegate, n, this.getSnapshot(), e.Snapshot.wrap(t), r);\n        }, t.prototype.renderError = function (t, r) {\n          return e.ErrorRenderer.render(this.delegate, r, t);\n        }, t;\n      }();\n    }.call(this), function () {\n      var t = function t(_t7, e) {\n        return function () {\n          return _t7.apply(e, arguments);\n        };\n      };\n\n      e.ScrollManager = function () {\n        function r(r) {\n          this.delegate = r, this.onScroll = t(this.onScroll, this), this.onScroll = e.throttle(this.onScroll);\n        }\n\n        return r.prototype.start = function () {\n          return this.started ? void 0 : (addEventListener(\"scroll\", this.onScroll, !1), this.onScroll(), this.started = !0);\n        }, r.prototype.stop = function () {\n          return this.started ? (removeEventListener(\"scroll\", this.onScroll, !1), this.started = !1) : void 0;\n        }, r.prototype.scrollToElement = function (t) {\n          return t.scrollIntoView();\n        }, r.prototype.scrollToPosition = function (t) {\n          var e, r;\n          return e = t.x, r = t.y, window.scrollTo(e, r);\n        }, r.prototype.onScroll = function (t) {\n          return this.updatePosition({\n            x: window.pageXOffset,\n            y: window.pageYOffset\n          });\n        }, r.prototype.updatePosition = function (t) {\n          var e;\n          return this.position = t, null != (e = this.delegate) ? e.scrollPositionChanged(this.position) : void 0;\n        }, r;\n      }();\n    }.call(this), function () {\n      e.SnapshotCache = function () {\n        function t(t) {\n          this.size = t, this.keys = [], this.snapshots = {};\n        }\n\n        var r;\n        return t.prototype.has = function (t) {\n          var e;\n          return e = r(t), e in this.snapshots;\n        }, t.prototype.get = function (t) {\n          var e;\n          if (this.has(t)) return e = this.read(t), this.touch(t), e;\n        }, t.prototype.put = function (t, e) {\n          return this.write(t, e), this.touch(t), e;\n        }, t.prototype.read = function (t) {\n          var e;\n          return e = r(t), this.snapshots[e];\n        }, t.prototype.write = function (t, e) {\n          var n;\n          return n = r(t), this.snapshots[n] = e;\n        }, t.prototype.touch = function (t) {\n          var e, n;\n          return n = r(t), e = this.keys.indexOf(n), e > -1 && this.keys.splice(e, 1), this.keys.unshift(n), this.trim();\n        }, t.prototype.trim = function () {\n          var t, e, r, n, o;\n\n          for (n = this.keys.splice(this.size), o = [], t = 0, r = n.length; r > t; t++) {\n            e = n[t], o.push(delete this.snapshots[e]);\n          }\n\n          return o;\n        }, r = function r(t) {\n          return e.Location.wrap(t).toCacheKey();\n        }, t;\n      }();\n    }.call(this), function () {\n      var t = function t(_t8, e) {\n        return function () {\n          return _t8.apply(e, arguments);\n        };\n      };\n\n      e.Visit = function () {\n        function r(r, n, o) {\n          this.controller = r, this.action = o, this.performScroll = t(this.performScroll, this), this.identifier = e.uuid(), this.location = e.Location.wrap(n), this.adapter = this.controller.adapter, this.state = \"initialized\", this.timingMetrics = {};\n        }\n\n        var n;\n        return r.prototype.start = function () {\n          return \"initialized\" === this.state ? (this.recordTimingMetric(\"visitStart\"), this.state = \"started\", this.adapter.visitStarted(this)) : void 0;\n        }, r.prototype.cancel = function () {\n          var t;\n          return \"started\" === this.state ? (null != (t = this.request) && t.cancel(), this.cancelRender(), this.state = \"canceled\") : void 0;\n        }, r.prototype.complete = function () {\n          var t;\n          return \"started\" === this.state ? (this.recordTimingMetric(\"visitEnd\"), this.state = \"completed\", \"function\" == typeof (t = this.adapter).visitCompleted && t.visitCompleted(this), this.controller.visitCompleted(this)) : void 0;\n        }, r.prototype.fail = function () {\n          var t;\n          return \"started\" === this.state ? (this.state = \"failed\", \"function\" == typeof (t = this.adapter).visitFailed ? t.visitFailed(this) : void 0) : void 0;\n        }, r.prototype.changeHistory = function () {\n          var t, e;\n          return this.historyChanged ? void 0 : (t = this.location.isEqualTo(this.referrer) ? \"replace\" : this.action, e = n(t), this.controller[e](this.location, this.restorationIdentifier), this.historyChanged = !0);\n        }, r.prototype.issueRequest = function () {\n          return this.shouldIssueRequest() && null == this.request ? (this.progress = 0, this.request = new e.HttpRequest(this, this.location, this.referrer), this.request.send()) : void 0;\n        }, r.prototype.getCachedSnapshot = function () {\n          var t;\n          return !(t = this.controller.getCachedSnapshotForLocation(this.location)) || null != this.location.anchor && !t.hasAnchor(this.location.anchor) || \"restore\" !== this.action && !t.isPreviewable() ? void 0 : t;\n        }, r.prototype.hasCachedSnapshot = function () {\n          return null != this.getCachedSnapshot();\n        }, r.prototype.loadCachedSnapshot = function () {\n          var t, e;\n          return (e = this.getCachedSnapshot()) ? (t = this.shouldIssueRequest(), this.render(function () {\n            var r;\n            return this.cacheSnapshot(), this.controller.render({\n              snapshot: e,\n              isPreview: t\n            }, this.performScroll), \"function\" == typeof (r = this.adapter).visitRendered && r.visitRendered(this), t ? void 0 : this.complete();\n          })) : void 0;\n        }, r.prototype.loadResponse = function () {\n          return null != this.response ? this.render(function () {\n            var t, e;\n            return this.cacheSnapshot(), this.request.failed ? (this.controller.render({\n              error: this.response\n            }, this.performScroll), \"function\" == typeof (t = this.adapter).visitRendered && t.visitRendered(this), this.fail()) : (this.controller.render({\n              snapshot: this.response\n            }, this.performScroll), \"function\" == typeof (e = this.adapter).visitRendered && e.visitRendered(this), this.complete());\n          }) : void 0;\n        }, r.prototype.followRedirect = function () {\n          return this.redirectedToLocation && !this.followedRedirect ? (this.location = this.redirectedToLocation, this.controller.replaceHistoryWithLocationAndRestorationIdentifier(this.redirectedToLocation, this.restorationIdentifier), this.followedRedirect = !0) : void 0;\n        }, r.prototype.requestStarted = function () {\n          var t;\n          return this.recordTimingMetric(\"requestStart\"), \"function\" == typeof (t = this.adapter).visitRequestStarted ? t.visitRequestStarted(this) : void 0;\n        }, r.prototype.requestProgressed = function (t) {\n          var e;\n          return this.progress = t, \"function\" == typeof (e = this.adapter).visitRequestProgressed ? e.visitRequestProgressed(this) : void 0;\n        }, r.prototype.requestCompletedWithResponse = function (t, r) {\n          return this.response = t, null != r && (this.redirectedToLocation = e.Location.wrap(r)), this.adapter.visitRequestCompleted(this);\n        }, r.prototype.requestFailedWithStatusCode = function (t, e) {\n          return this.response = e, this.adapter.visitRequestFailedWithStatusCode(this, t);\n        }, r.prototype.requestFinished = function () {\n          var t;\n          return this.recordTimingMetric(\"requestEnd\"), \"function\" == typeof (t = this.adapter).visitRequestFinished ? t.visitRequestFinished(this) : void 0;\n        }, r.prototype.performScroll = function () {\n          return this.scrolled ? void 0 : (\"restore\" === this.action ? this.scrollToRestoredPosition() || this.scrollToTop() : this.scrollToAnchor() || this.scrollToTop(), this.scrolled = !0);\n        }, r.prototype.scrollToRestoredPosition = function () {\n          var t, e;\n          return t = null != (e = this.restorationData) ? e.scrollPosition : void 0, null != t ? (this.controller.scrollToPosition(t), !0) : void 0;\n        }, r.prototype.scrollToAnchor = function () {\n          return null != this.location.anchor ? (this.controller.scrollToAnchor(this.location.anchor), !0) : void 0;\n        }, r.prototype.scrollToTop = function () {\n          return this.controller.scrollToPosition({\n            x: 0,\n            y: 0\n          });\n        }, r.prototype.recordTimingMetric = function (t) {\n          var e;\n          return null != (e = this.timingMetrics)[t] ? e[t] : e[t] = new Date().getTime();\n        }, r.prototype.getTimingMetrics = function () {\n          return e.copyObject(this.timingMetrics);\n        }, n = function n(t) {\n          switch (t) {\n            case \"replace\":\n              return \"replaceHistoryWithLocationAndRestorationIdentifier\";\n\n            case \"advance\":\n            case \"restore\":\n              return \"pushHistoryWithLocationAndRestorationIdentifier\";\n          }\n        }, r.prototype.shouldIssueRequest = function () {\n          return \"restore\" === this.action ? !this.hasCachedSnapshot() : !0;\n        }, r.prototype.cacheSnapshot = function () {\n          return this.snapshotCached ? void 0 : (this.controller.cacheSnapshot(), this.snapshotCached = !0);\n        }, r.prototype.render = function (t) {\n          return this.cancelRender(), this.frame = requestAnimationFrame(function (e) {\n            return function () {\n              return e.frame = null, t.call(e);\n            };\n          }(this));\n        }, r.prototype.cancelRender = function () {\n          return this.frame ? cancelAnimationFrame(this.frame) : void 0;\n        }, r;\n      }();\n    }.call(this), function () {\n      var t = function t(_t9, e) {\n        return function () {\n          return _t9.apply(e, arguments);\n        };\n      };\n\n      e.Controller = function () {\n        function r() {\n          this.clickBubbled = t(this.clickBubbled, this), this.clickCaptured = t(this.clickCaptured, this), this.pageLoaded = t(this.pageLoaded, this), this.history = new e.History(this), this.view = new e.View(this), this.scrollManager = new e.ScrollManager(this), this.restorationData = {}, this.clearCache(), this.setProgressBarDelay(500);\n        }\n\n        return r.prototype.start = function () {\n          return e.supported && !this.started ? (addEventListener(\"click\", this.clickCaptured, !0), addEventListener(\"DOMContentLoaded\", this.pageLoaded, !1), this.scrollManager.start(), this.startHistory(), this.started = !0, this.enabled = !0) : void 0;\n        }, r.prototype.disable = function () {\n          return this.enabled = !1;\n        }, r.prototype.stop = function () {\n          return this.started ? (removeEventListener(\"click\", this.clickCaptured, !0), removeEventListener(\"DOMContentLoaded\", this.pageLoaded, !1), this.scrollManager.stop(), this.stopHistory(), this.started = !1) : void 0;\n        }, r.prototype.clearCache = function () {\n          return this.cache = new e.SnapshotCache(10);\n        }, r.prototype.visit = function (t, r) {\n          var n, o;\n          return null == r && (r = {}), t = e.Location.wrap(t), this.applicationAllowsVisitingLocation(t) ? this.locationIsVisitable(t) ? (n = null != (o = r.action) ? o : \"advance\", this.adapter.visitProposedToLocationWithAction(t, n)) : window.location = t : void 0;\n        }, r.prototype.startVisitToLocationWithAction = function (t, r, n) {\n          var o;\n          return e.supported ? (o = this.getRestorationDataForIdentifier(n), this.startVisit(t, r, {\n            restorationData: o\n          })) : window.location = t;\n        }, r.prototype.setProgressBarDelay = function (t) {\n          return this.progressBarDelay = t;\n        }, r.prototype.startHistory = function () {\n          return this.location = e.Location.wrap(window.location), this.restorationIdentifier = e.uuid(), this.history.start(), this.history.replace(this.location, this.restorationIdentifier);\n        }, r.prototype.stopHistory = function () {\n          return this.history.stop();\n        }, r.prototype.pushHistoryWithLocationAndRestorationIdentifier = function (t, r) {\n          return this.restorationIdentifier = r, this.location = e.Location.wrap(t), this.history.push(this.location, this.restorationIdentifier);\n        }, r.prototype.replaceHistoryWithLocationAndRestorationIdentifier = function (t, r) {\n          return this.restorationIdentifier = r, this.location = e.Location.wrap(t), this.history.replace(this.location, this.restorationIdentifier);\n        }, r.prototype.historyPoppedToLocationWithRestorationIdentifier = function (t, r) {\n          var n;\n          return this.restorationIdentifier = r, this.enabled ? (n = this.getRestorationDataForIdentifier(this.restorationIdentifier), this.startVisit(t, \"restore\", {\n            restorationIdentifier: this.restorationIdentifier,\n            restorationData: n,\n            historyChanged: !0\n          }), this.location = e.Location.wrap(t)) : this.adapter.pageInvalidated();\n        }, r.prototype.getCachedSnapshotForLocation = function (t) {\n          var e;\n          return null != (e = this.cache.get(t)) ? e.clone() : void 0;\n        }, r.prototype.shouldCacheSnapshot = function () {\n          return this.view.getSnapshot().isCacheable();\n        }, r.prototype.cacheSnapshot = function () {\n          var t, r;\n          return this.shouldCacheSnapshot() ? (this.notifyApplicationBeforeCachingSnapshot(), r = this.view.getSnapshot(), t = this.lastRenderedLocation, e.defer(function (e) {\n            return function () {\n              return e.cache.put(t, r.clone());\n            };\n          }(this))) : void 0;\n        }, r.prototype.scrollToAnchor = function (t) {\n          var e;\n          return (e = this.view.getElementForAnchor(t)) ? this.scrollToElement(e) : this.scrollToPosition({\n            x: 0,\n            y: 0\n          });\n        }, r.prototype.scrollToElement = function (t) {\n          return this.scrollManager.scrollToElement(t);\n        }, r.prototype.scrollToPosition = function (t) {\n          return this.scrollManager.scrollToPosition(t);\n        }, r.prototype.scrollPositionChanged = function (t) {\n          var e;\n          return e = this.getCurrentRestorationData(), e.scrollPosition = t;\n        }, r.prototype.render = function (t, e) {\n          return this.view.render(t, e);\n        }, r.prototype.viewInvalidated = function () {\n          return this.adapter.pageInvalidated();\n        }, r.prototype.viewWillRender = function (t) {\n          return this.notifyApplicationBeforeRender(t);\n        }, r.prototype.viewRendered = function () {\n          return this.lastRenderedLocation = this.currentVisit.location, this.notifyApplicationAfterRender();\n        }, r.prototype.pageLoaded = function () {\n          return this.lastRenderedLocation = this.location, this.notifyApplicationAfterPageLoad();\n        }, r.prototype.clickCaptured = function () {\n          return removeEventListener(\"click\", this.clickBubbled, !1), addEventListener(\"click\", this.clickBubbled, !1);\n        }, r.prototype.clickBubbled = function (t) {\n          var e, r, n;\n          return this.enabled && this.clickEventIsSignificant(t) && (r = this.getVisitableLinkForNode(t.target)) && (n = this.getVisitableLocationForLink(r)) && this.applicationAllowsFollowingLinkToLocation(r, n) ? (t.preventDefault(), e = this.getActionForLink(r), this.visit(n, {\n            action: e\n          })) : void 0;\n        }, r.prototype.applicationAllowsFollowingLinkToLocation = function (t, e) {\n          var r;\n          return r = this.notifyApplicationAfterClickingLinkToLocation(t, e), !r.defaultPrevented;\n        }, r.prototype.applicationAllowsVisitingLocation = function (t) {\n          var e;\n          return e = this.notifyApplicationBeforeVisitingLocation(t), !e.defaultPrevented;\n        }, r.prototype.notifyApplicationAfterClickingLinkToLocation = function (t, r) {\n          return e.dispatch(\"turbolinks:click\", {\n            target: t,\n            data: {\n              url: r.absoluteURL\n            },\n            cancelable: !0\n          });\n        }, r.prototype.notifyApplicationBeforeVisitingLocation = function (t) {\n          return e.dispatch(\"turbolinks:before-visit\", {\n            data: {\n              url: t.absoluteURL\n            },\n            cancelable: !0\n          });\n        }, r.prototype.notifyApplicationAfterVisitingLocation = function (t) {\n          return e.dispatch(\"turbolinks:visit\", {\n            data: {\n              url: t.absoluteURL\n            }\n          });\n        }, r.prototype.notifyApplicationBeforeCachingSnapshot = function () {\n          return e.dispatch(\"turbolinks:before-cache\");\n        }, r.prototype.notifyApplicationBeforeRender = function (t) {\n          return e.dispatch(\"turbolinks:before-render\", {\n            data: {\n              newBody: t\n            }\n          });\n        }, r.prototype.notifyApplicationAfterRender = function () {\n          return e.dispatch(\"turbolinks:render\");\n        }, r.prototype.notifyApplicationAfterPageLoad = function (t) {\n          return null == t && (t = {}), e.dispatch(\"turbolinks:load\", {\n            data: {\n              url: this.location.absoluteURL,\n              timing: t\n            }\n          });\n        }, r.prototype.startVisit = function (t, e, r) {\n          var n;\n          return null != (n = this.currentVisit) && n.cancel(), this.currentVisit = this.createVisit(t, e, r), this.currentVisit.start(), this.notifyApplicationAfterVisitingLocation(t);\n        }, r.prototype.createVisit = function (t, r, n) {\n          var o, i, s, a, u;\n          return i = null != n ? n : {}, a = i.restorationIdentifier, s = i.restorationData, o = i.historyChanged, u = new e.Visit(this, t, r), u.restorationIdentifier = null != a ? a : e.uuid(), u.restorationData = e.copyObject(s), u.historyChanged = o, u.referrer = this.location, u;\n        }, r.prototype.visitCompleted = function (t) {\n          return this.notifyApplicationAfterPageLoad(t.getTimingMetrics());\n        }, r.prototype.clickEventIsSignificant = function (t) {\n          return !(t.defaultPrevented || t.target.isContentEditable || t.which > 1 || t.altKey || t.ctrlKey || t.metaKey || t.shiftKey);\n        }, r.prototype.getVisitableLinkForNode = function (t) {\n          return this.nodeIsVisitable(t) ? e.closest(t, \"a[href]:not([target]):not([download])\") : void 0;\n        }, r.prototype.getVisitableLocationForLink = function (t) {\n          var r;\n          return r = new e.Location(t.getAttribute(\"href\")), this.locationIsVisitable(r) ? r : void 0;\n        }, r.prototype.getActionForLink = function (t) {\n          var e;\n          return null != (e = t.getAttribute(\"data-turbolinks-action\")) ? e : \"advance\";\n        }, r.prototype.nodeIsVisitable = function (t) {\n          var r;\n          return (r = e.closest(t, \"[data-turbolinks]\")) ? \"false\" !== r.getAttribute(\"data-turbolinks\") : !0;\n        }, r.prototype.locationIsVisitable = function (t) {\n          return t.isPrefixedBy(this.view.getRootLocation()) && t.isHTML();\n        }, r.prototype.getCurrentRestorationData = function () {\n          return this.getRestorationDataForIdentifier(this.restorationIdentifier);\n        }, r.prototype.getRestorationDataForIdentifier = function (t) {\n          var e;\n          return null != (e = this.restorationData)[t] ? e[t] : e[t] = {};\n        }, r;\n      }();\n    }.call(this), function () {\n      !function () {\n        var t, e;\n        if ((t = e = document.currentScript) && !e.hasAttribute(\"data-turbolinks-suppress-warning\")) for (; t = t.parentNode;) {\n          if (t === document.body) return console.warn(\"You are loading Turbolinks from a <script> element inside the <body> element. This is probably not what you meant to do!\\n\\nLoad your application\\u2019s JavaScript bundle inside the <head> element instead. <script> elements in <body> are evaluated with each page change.\\n\\nFor more information, see: https://github.com/turbolinks/turbolinks#working-with-script-elements\\n\\n\\u2014\\u2014\\nSuppress this warning by adding a `data-turbolinks-suppress-warning` attribute to: %s\", e.outerHTML);\n        }\n      }();\n    }.call(this), function () {\n      var t, r, n;\n      e.start = function () {\n        return r() ? (null == e.controller && (e.controller = t()), e.controller.start()) : void 0;\n      }, r = function r() {\n        return null == window.Turbolinks && (window.Turbolinks = e), n();\n      }, t = function t() {\n        var t;\n        return t = new e.Controller(), t.adapter = new e.BrowserAdapter(t), t;\n      }, n = function n() {\n        return window.Turbolinks === e;\n      }, n() && e.start();\n    }.call(this);\n  }).call(this), \"object\" == (typeof module === \"undefined\" ? \"undefined\" : _typeof(module)) && module.exports ? module.exports = e : \"function\" == typeof define && define.amd && define(e);\n}).call(this);","function _typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\n/**\n * @license\n * Lodash <https://lodash.com/>\n * Copyright OpenJS Foundation and other contributors <https://openjsf.org/>\n * Released under MIT license <https://lodash.com/license>\n * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>\n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n;\n(function () {\n  /** Used as a safe reference for `undefined` in pre-ES5 environments. */\n  var undefined;\n  /** Used as the semantic version number. */\n\n  var VERSION = '4.17.20';\n  /** Used as the size to enable large array optimizations. */\n\n  var LARGE_ARRAY_SIZE = 200;\n  /** Error message constants. */\n\n  var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',\n      FUNC_ERROR_TEXT = 'Expected a function';\n  /** Used to stand-in for `undefined` hash values. */\n\n  var HASH_UNDEFINED = '__lodash_hash_undefined__';\n  /** Used as the maximum memoize cache size. */\n\n  var MAX_MEMOIZE_SIZE = 500;\n  /** Used as the internal argument placeholder. */\n\n  var PLACEHOLDER = '__lodash_placeholder__';\n  /** Used to compose bitmasks for cloning. */\n\n  var CLONE_DEEP_FLAG = 1,\n      CLONE_FLAT_FLAG = 2,\n      CLONE_SYMBOLS_FLAG = 4;\n  /** Used to compose bitmasks for value comparisons. */\n\n  var COMPARE_PARTIAL_FLAG = 1,\n      COMPARE_UNORDERED_FLAG = 2;\n  /** Used to compose bitmasks for function metadata. */\n\n  var WRAP_BIND_FLAG = 1,\n      WRAP_BIND_KEY_FLAG = 2,\n      WRAP_CURRY_BOUND_FLAG = 4,\n      WRAP_CURRY_FLAG = 8,\n      WRAP_CURRY_RIGHT_FLAG = 16,\n      WRAP_PARTIAL_FLAG = 32,\n      WRAP_PARTIAL_RIGHT_FLAG = 64,\n      WRAP_ARY_FLAG = 128,\n      WRAP_REARG_FLAG = 256,\n      WRAP_FLIP_FLAG = 512;\n  /** Used as default options for `_.truncate`. */\n\n  var DEFAULT_TRUNC_LENGTH = 30,\n      DEFAULT_TRUNC_OMISSION = '...';\n  /** Used to detect hot functions by number of calls within a span of milliseconds. */\n\n  var HOT_COUNT = 800,\n      HOT_SPAN = 16;\n  /** Used to indicate the type of lazy iteratees. */\n\n  var LAZY_FILTER_FLAG = 1,\n      LAZY_MAP_FLAG = 2,\n      LAZY_WHILE_FLAG = 3;\n  /** Used as references for various `Number` constants. */\n\n  var INFINITY = 1 / 0,\n      MAX_SAFE_INTEGER = 9007199254740991,\n      MAX_INTEGER = 1.7976931348623157e+308,\n      NAN = 0 / 0;\n  /** Used as references for the maximum length and index of an array. */\n\n  var MAX_ARRAY_LENGTH = 4294967295,\n      MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,\n      HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;\n  /** Used to associate wrap methods with their bit flags. */\n\n  var wrapFlags = [['ary', WRAP_ARY_FLAG], ['bind', WRAP_BIND_FLAG], ['bindKey', WRAP_BIND_KEY_FLAG], ['curry', WRAP_CURRY_FLAG], ['curryRight', WRAP_CURRY_RIGHT_FLAG], ['flip', WRAP_FLIP_FLAG], ['partial', WRAP_PARTIAL_FLAG], ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], ['rearg', WRAP_REARG_FLAG]];\n  /** `Object#toString` result references. */\n\n  var argsTag = '[object Arguments]',\n      arrayTag = '[object Array]',\n      asyncTag = '[object AsyncFunction]',\n      boolTag = '[object Boolean]',\n      dateTag = '[object Date]',\n      domExcTag = '[object DOMException]',\n      errorTag = '[object Error]',\n      funcTag = '[object Function]',\n      genTag = '[object GeneratorFunction]',\n      mapTag = '[object Map]',\n      numberTag = '[object Number]',\n      nullTag = '[object Null]',\n      objectTag = '[object Object]',\n      promiseTag = '[object Promise]',\n      proxyTag = '[object Proxy]',\n      regexpTag = '[object RegExp]',\n      setTag = '[object Set]',\n      stringTag = '[object String]',\n      symbolTag = '[object Symbol]',\n      undefinedTag = '[object Undefined]',\n      weakMapTag = '[object WeakMap]',\n      weakSetTag = '[object WeakSet]';\n  var arrayBufferTag = '[object ArrayBuffer]',\n      dataViewTag = '[object DataView]',\n      float32Tag = '[object Float32Array]',\n      float64Tag = '[object Float64Array]',\n      int8Tag = '[object Int8Array]',\n      int16Tag = '[object Int16Array]',\n      int32Tag = '[object Int32Array]',\n      uint8Tag = '[object Uint8Array]',\n      uint8ClampedTag = '[object Uint8ClampedArray]',\n      uint16Tag = '[object Uint16Array]',\n      uint32Tag = '[object Uint32Array]';\n  /** Used to match empty string literals in compiled template source. */\n\n  var reEmptyStringLeading = /\\b__p \\+= '';/g,\n      reEmptyStringMiddle = /\\b(__p \\+=) '' \\+/g,\n      reEmptyStringTrailing = /(__e\\(.*?\\)|\\b__t\\)) \\+\\n'';/g;\n  /** Used to match HTML entities and HTML characters. */\n\n  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,\n      reUnescapedHtml = /[&<>\"']/g,\n      reHasEscapedHtml = RegExp(reEscapedHtml.source),\n      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);\n  /** Used to match template delimiters. */\n\n  var reEscape = /<%-([\\s\\S]+?)%>/g,\n      reEvaluate = /<%([\\s\\S]+?)%>/g,\n      reInterpolate = /<%=([\\s\\S]+?)%>/g;\n  /** Used to match property names within property paths. */\n\n  var reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n      reIsPlainProp = /^\\w*$/,\n      rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n  /**\n   * Used to match `RegExp`\n   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n   */\n\n  var reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g,\n      reHasRegExpChar = RegExp(reRegExpChar.source);\n  /** Used to match leading and trailing whitespace. */\n\n  var reTrim = /^\\s+|\\s+$/g,\n      reTrimStart = /^\\s+/,\n      reTrimEnd = /\\s+$/;\n  /** Used to match wrap detail comments. */\n\n  var reWrapComment = /\\{(?:\\n\\/\\* \\[wrapped with .+\\] \\*\\/)?\\n?/,\n      reWrapDetails = /\\{\\n\\/\\* \\[wrapped with (.+)\\] \\*/,\n      reSplitDetails = /,? & /;\n  /** Used to match words composed of alphanumeric characters. */\n\n  var reAsciiWord = /[^\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\x7f]+/g;\n  /** Used to match backslashes in property paths. */\n\n  var reEscapeChar = /\\\\(\\\\)?/g;\n  /**\n   * Used to match\n   * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).\n   */\n\n  var reEsTemplate = /\\$\\{([^\\\\}]*(?:\\\\.[^\\\\}]*)*)\\}/g;\n  /** Used to match `RegExp` flags from their coerced string values. */\n\n  var reFlags = /\\w*$/;\n  /** Used to detect bad signed hexadecimal string values. */\n\n  var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n  /** Used to detect binary string values. */\n\n  var reIsBinary = /^0b[01]+$/i;\n  /** Used to detect host constructors (Safari). */\n\n  var reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n  /** Used to detect octal string values. */\n\n  var reIsOctal = /^0o[0-7]+$/i;\n  /** Used to detect unsigned integer values. */\n\n  var reIsUint = /^(?:0|[1-9]\\d*)$/;\n  /** Used to match Latin Unicode letters (excluding mathematical operators). */\n\n  var reLatin = /[\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\xff\\u0100-\\u017f]/g;\n  /** Used to ensure capturing order of template delimiters. */\n\n  var reNoMatch = /($^)/;\n  /** Used to match unescaped characters in compiled string literals. */\n\n  var reUnescapedString = /['\\n\\r\\u2028\\u2029\\\\]/g;\n  /** Used to compose unicode character classes. */\n\n  var rsAstralRange = \"\\\\ud800-\\\\udfff\",\n      rsComboMarksRange = \"\\\\u0300-\\\\u036f\",\n      reComboHalfMarksRange = \"\\\\ufe20-\\\\ufe2f\",\n      rsComboSymbolsRange = \"\\\\u20d0-\\\\u20ff\",\n      rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n      rsDingbatRange = \"\\\\u2700-\\\\u27bf\",\n      rsLowerRange = 'a-z\\\\xdf-\\\\xf6\\\\xf8-\\\\xff',\n      rsMathOpRange = '\\\\xac\\\\xb1\\\\xd7\\\\xf7',\n      rsNonCharRange = '\\\\x00-\\\\x2f\\\\x3a-\\\\x40\\\\x5b-\\\\x60\\\\x7b-\\\\xbf',\n      rsPunctuationRange = \"\\\\u2000-\\\\u206f\",\n      rsSpaceRange = \" \\\\t\\\\x0b\\\\f\\\\xa0\\\\ufeff\\\\n\\\\r\\\\u2028\\\\u2029\\\\u1680\\\\u180e\\\\u2000\\\\u2001\\\\u2002\\\\u2003\\\\u2004\\\\u2005\\\\u2006\\\\u2007\\\\u2008\\\\u2009\\\\u200a\\\\u202f\\\\u205f\\\\u3000\",\n      rsUpperRange = 'A-Z\\\\xc0-\\\\xd6\\\\xd8-\\\\xde',\n      rsVarRange = \"\\\\ufe0e\\\\ufe0f\",\n      rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;\n  /** Used to compose unicode capture groups. */\n\n  var rsApos = \"['\\u2019]\",\n      rsAstral = '[' + rsAstralRange + ']',\n      rsBreak = '[' + rsBreakRange + ']',\n      rsCombo = '[' + rsComboRange + ']',\n      rsDigits = '\\\\d+',\n      rsDingbat = '[' + rsDingbatRange + ']',\n      rsLower = '[' + rsLowerRange + ']',\n      rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',\n      rsFitz = \"\\\\ud83c[\\\\udffb-\\\\udfff]\",\n      rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n      rsNonAstral = '[^' + rsAstralRange + ']',\n      rsRegional = \"(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}\",\n      rsSurrPair = \"[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]\",\n      rsUpper = '[' + rsUpperRange + ']',\n      rsZWJ = \"\\\\u200d\";\n  /** Used to compose unicode regexes. */\n\n  var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',\n      rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',\n      rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',\n      rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',\n      reOptMod = rsModifier + '?',\n      rsOptVar = '[' + rsVarRange + ']?',\n      rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n      rsOrdLower = '\\\\d*(?:1st|2nd|3rd|(?![123])\\\\dth)(?=\\\\b|[A-Z_])',\n      rsOrdUpper = '\\\\d*(?:1ST|2ND|3RD|(?![123])\\\\dTH)(?=\\\\b|[a-z_])',\n      rsSeq = rsOptVar + reOptMod + rsOptJoin,\n      rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,\n      rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n  /** Used to match apostrophes. */\n\n  var reApos = RegExp(rsApos, 'g');\n  /**\n   * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and\n   * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).\n   */\n\n  var reComboMark = RegExp(rsCombo, 'g');\n  /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\n\n  var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n  /** Used to match complex or compound words. */\n\n  var reUnicodeWord = RegExp([rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')', rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')', rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower, rsUpper + '+' + rsOptContrUpper, rsOrdUpper, rsOrdLower, rsDigits, rsEmoji].join('|'), 'g');\n  /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\n\n  var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');\n  /** Used to detect strings that need a more robust regexp to match words. */\n\n  var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;\n  /** Used to assign default `context` object properties. */\n\n  var contextProps = ['Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array', 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object', 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array', 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap', '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'];\n  /** Used to make template sourceURLs easier to identify. */\n\n  var templateCounter = -1;\n  /** Used to identify `toStringTag` values of typed arrays. */\n\n  var typedArrayTags = {};\n  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = typedArrayTags[uint32Tag] = true;\n  typedArrayTags[argsTag] = typedArrayTags[arrayTag] = typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = typedArrayTags[errorTag] = typedArrayTags[funcTag] = typedArrayTags[mapTag] = typedArrayTags[numberTag] = typedArrayTags[objectTag] = typedArrayTags[regexpTag] = typedArrayTags[setTag] = typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;\n  /** Used to identify `toStringTag` values supported by `_.clone`. */\n\n  var cloneableTags = {};\n  cloneableTags[argsTag] = cloneableTags[arrayTag] = cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = cloneableTags[boolTag] = cloneableTags[dateTag] = cloneableTags[float32Tag] = cloneableTags[float64Tag] = cloneableTags[int8Tag] = cloneableTags[int16Tag] = cloneableTags[int32Tag] = cloneableTags[mapTag] = cloneableTags[numberTag] = cloneableTags[objectTag] = cloneableTags[regexpTag] = cloneableTags[setTag] = cloneableTags[stringTag] = cloneableTags[symbolTag] = cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\n  cloneableTags[errorTag] = cloneableTags[funcTag] = cloneableTags[weakMapTag] = false;\n  /** Used to map Latin Unicode letters to basic Latin letters. */\n\n  var deburredLetters = {\n    // Latin-1 Supplement block.\n    '\\xc0': 'A',\n    '\\xc1': 'A',\n    '\\xc2': 'A',\n    '\\xc3': 'A',\n    '\\xc4': 'A',\n    '\\xc5': 'A',\n    '\\xe0': 'a',\n    '\\xe1': 'a',\n    '\\xe2': 'a',\n    '\\xe3': 'a',\n    '\\xe4': 'a',\n    '\\xe5': 'a',\n    '\\xc7': 'C',\n    '\\xe7': 'c',\n    '\\xd0': 'D',\n    '\\xf0': 'd',\n    '\\xc8': 'E',\n    '\\xc9': 'E',\n    '\\xca': 'E',\n    '\\xcb': 'E',\n    '\\xe8': 'e',\n    '\\xe9': 'e',\n    '\\xea': 'e',\n    '\\xeb': 'e',\n    '\\xcc': 'I',\n    '\\xcd': 'I',\n    '\\xce': 'I',\n    '\\xcf': 'I',\n    '\\xec': 'i',\n    '\\xed': 'i',\n    '\\xee': 'i',\n    '\\xef': 'i',\n    '\\xd1': 'N',\n    '\\xf1': 'n',\n    '\\xd2': 'O',\n    '\\xd3': 'O',\n    '\\xd4': 'O',\n    '\\xd5': 'O',\n    '\\xd6': 'O',\n    '\\xd8': 'O',\n    '\\xf2': 'o',\n    '\\xf3': 'o',\n    '\\xf4': 'o',\n    '\\xf5': 'o',\n    '\\xf6': 'o',\n    '\\xf8': 'o',\n    '\\xd9': 'U',\n    '\\xda': 'U',\n    '\\xdb': 'U',\n    '\\xdc': 'U',\n    '\\xf9': 'u',\n    '\\xfa': 'u',\n    '\\xfb': 'u',\n    '\\xfc': 'u',\n    '\\xdd': 'Y',\n    '\\xfd': 'y',\n    '\\xff': 'y',\n    '\\xc6': 'Ae',\n    '\\xe6': 'ae',\n    '\\xde': 'Th',\n    '\\xfe': 'th',\n    '\\xdf': 'ss',\n    // Latin Extended-A block.\n    \"\\u0100\": 'A',\n    \"\\u0102\": 'A',\n    \"\\u0104\": 'A',\n    \"\\u0101\": 'a',\n    \"\\u0103\": 'a',\n    \"\\u0105\": 'a',\n    \"\\u0106\": 'C',\n    \"\\u0108\": 'C',\n    \"\\u010A\": 'C',\n    \"\\u010C\": 'C',\n    \"\\u0107\": 'c',\n    \"\\u0109\": 'c',\n    \"\\u010B\": 'c',\n    \"\\u010D\": 'c',\n    \"\\u010E\": 'D',\n    \"\\u0110\": 'D',\n    \"\\u010F\": 'd',\n    \"\\u0111\": 'd',\n    \"\\u0112\": 'E',\n    \"\\u0114\": 'E',\n    \"\\u0116\": 'E',\n    \"\\u0118\": 'E',\n    \"\\u011A\": 'E',\n    \"\\u0113\": 'e',\n    \"\\u0115\": 'e',\n    \"\\u0117\": 'e',\n    \"\\u0119\": 'e',\n    \"\\u011B\": 'e',\n    \"\\u011C\": 'G',\n    \"\\u011E\": 'G',\n    \"\\u0120\": 'G',\n    \"\\u0122\": 'G',\n    \"\\u011D\": 'g',\n    \"\\u011F\": 'g',\n    \"\\u0121\": 'g',\n    \"\\u0123\": 'g',\n    \"\\u0124\": 'H',\n    \"\\u0126\": 'H',\n    \"\\u0125\": 'h',\n    \"\\u0127\": 'h',\n    \"\\u0128\": 'I',\n    \"\\u012A\": 'I',\n    \"\\u012C\": 'I',\n    \"\\u012E\": 'I',\n    \"\\u0130\": 'I',\n    \"\\u0129\": 'i',\n    \"\\u012B\": 'i',\n    \"\\u012D\": 'i',\n    \"\\u012F\": 'i',\n    \"\\u0131\": 'i',\n    \"\\u0134\": 'J',\n    \"\\u0135\": 'j',\n    \"\\u0136\": 'K',\n    \"\\u0137\": 'k',\n    \"\\u0138\": 'k',\n    \"\\u0139\": 'L',\n    \"\\u013B\": 'L',\n    \"\\u013D\": 'L',\n    \"\\u013F\": 'L',\n    \"\\u0141\": 'L',\n    \"\\u013A\": 'l',\n    \"\\u013C\": 'l',\n    \"\\u013E\": 'l',\n    \"\\u0140\": 'l',\n    \"\\u0142\": 'l',\n    \"\\u0143\": 'N',\n    \"\\u0145\": 'N',\n    \"\\u0147\": 'N',\n    \"\\u014A\": 'N',\n    \"\\u0144\": 'n',\n    \"\\u0146\": 'n',\n    \"\\u0148\": 'n',\n    \"\\u014B\": 'n',\n    \"\\u014C\": 'O',\n    \"\\u014E\": 'O',\n    \"\\u0150\": 'O',\n    \"\\u014D\": 'o',\n    \"\\u014F\": 'o',\n    \"\\u0151\": 'o',\n    \"\\u0154\": 'R',\n    \"\\u0156\": 'R',\n    \"\\u0158\": 'R',\n    \"\\u0155\": 'r',\n    \"\\u0157\": 'r',\n    \"\\u0159\": 'r',\n    \"\\u015A\": 'S',\n    \"\\u015C\": 'S',\n    \"\\u015E\": 'S',\n    \"\\u0160\": 'S',\n    \"\\u015B\": 's',\n    \"\\u015D\": 's',\n    \"\\u015F\": 's',\n    \"\\u0161\": 's',\n    \"\\u0162\": 'T',\n    \"\\u0164\": 'T',\n    \"\\u0166\": 'T',\n    \"\\u0163\": 't',\n    \"\\u0165\": 't',\n    \"\\u0167\": 't',\n    \"\\u0168\": 'U',\n    \"\\u016A\": 'U',\n    \"\\u016C\": 'U',\n    \"\\u016E\": 'U',\n    \"\\u0170\": 'U',\n    \"\\u0172\": 'U',\n    \"\\u0169\": 'u',\n    \"\\u016B\": 'u',\n    \"\\u016D\": 'u',\n    \"\\u016F\": 'u',\n    \"\\u0171\": 'u',\n    \"\\u0173\": 'u',\n    \"\\u0174\": 'W',\n    \"\\u0175\": 'w',\n    \"\\u0176\": 'Y',\n    \"\\u0177\": 'y',\n    \"\\u0178\": 'Y',\n    \"\\u0179\": 'Z',\n    \"\\u017B\": 'Z',\n    \"\\u017D\": 'Z',\n    \"\\u017A\": 'z',\n    \"\\u017C\": 'z',\n    \"\\u017E\": 'z',\n    \"\\u0132\": 'IJ',\n    \"\\u0133\": 'ij',\n    \"\\u0152\": 'Oe',\n    \"\\u0153\": 'oe',\n    \"\\u0149\": \"'n\",\n    \"\\u017F\": 's'\n  };\n  /** Used to map characters to HTML entities. */\n\n  var htmlEscapes = {\n    '&': '&amp;',\n    '<': '&lt;',\n    '>': '&gt;',\n    '\"': '&quot;',\n    \"'\": '&#39;'\n  };\n  /** Used to map HTML entities to characters. */\n\n  var htmlUnescapes = {\n    '&amp;': '&',\n    '&lt;': '<',\n    '&gt;': '>',\n    '&quot;': '\"',\n    '&#39;': \"'\"\n  };\n  /** Used to escape characters for inclusion in compiled string literals. */\n\n  var stringEscapes = {\n    '\\\\': '\\\\',\n    \"'\": \"'\",\n    '\\n': 'n',\n    '\\r': 'r',\n    \"\\u2028\": 'u2028',\n    \"\\u2029\": 'u2029'\n  };\n  /** Built-in method references without a dependency on `root`. */\n\n  var freeParseFloat = parseFloat,\n      freeParseInt = parseInt;\n  /** Detect free variable `global` from Node.js. */\n\n  var freeGlobal = (typeof global === \"undefined\" ? \"undefined\" : _typeof(global)) == 'object' && global && global.Object === Object && global;\n  /** Detect free variable `self`. */\n\n  var freeSelf = (typeof self === \"undefined\" ? \"undefined\" : _typeof(self)) == 'object' && self && self.Object === Object && self;\n  /** Used as a reference to the global object. */\n\n  var root = freeGlobal || freeSelf || Function('return this')();\n  /** Detect free variable `exports`. */\n\n  var freeExports = (typeof exports === \"undefined\" ? \"undefined\" : _typeof(exports)) == 'object' && exports && !exports.nodeType && exports;\n  /** Detect free variable `module`. */\n\n  var freeModule = freeExports && (typeof module === \"undefined\" ? \"undefined\" : _typeof(module)) == 'object' && module && !module.nodeType && module;\n  /** Detect the popular CommonJS extension `module.exports`. */\n\n  var moduleExports = freeModule && freeModule.exports === freeExports;\n  /** Detect free variable `process` from Node.js. */\n\n  var freeProcess = moduleExports && freeGlobal.process;\n  /** Used to access faster Node.js helpers. */\n\n  var nodeUtil = function () {\n    try {\n      // Use `util.types` for Node.js 10+.\n      var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n      if (types) {\n        return types;\n      } // Legacy `process.binding('util')` for Node.js < 10.\n\n\n      return freeProcess && freeProcess.binding && freeProcess.binding('util');\n    } catch (e) {}\n  }();\n  /* Node.js helper references. */\n\n\n  var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,\n      nodeIsDate = nodeUtil && nodeUtil.isDate,\n      nodeIsMap = nodeUtil && nodeUtil.isMap,\n      nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,\n      nodeIsSet = nodeUtil && nodeUtil.isSet,\n      nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n  /*--------------------------------------------------------------------------*/\n\n  /**\n   * A faster alternative to `Function#apply`, this function invokes `func`\n   * with the `this` binding of `thisArg` and the arguments of `args`.\n   *\n   * @private\n   * @param {Function} func The function to invoke.\n   * @param {*} thisArg The `this` binding of `func`.\n   * @param {Array} args The arguments to invoke `func` with.\n   * @returns {*} Returns the result of `func`.\n   */\n\n  function apply(func, thisArg, args) {\n    switch (args.length) {\n      case 0:\n        return func.call(thisArg);\n\n      case 1:\n        return func.call(thisArg, args[0]);\n\n      case 2:\n        return func.call(thisArg, args[0], args[1]);\n\n      case 3:\n        return func.call(thisArg, args[0], args[1], args[2]);\n    }\n\n    return func.apply(thisArg, args);\n  }\n  /**\n   * A specialized version of `baseAggregator` for arrays.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} setter The function to set `accumulator` values.\n   * @param {Function} iteratee The iteratee to transform keys.\n   * @param {Object} accumulator The initial aggregated object.\n   * @returns {Function} Returns `accumulator`.\n   */\n\n\n  function arrayAggregator(array, setter, iteratee, accumulator) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      var value = array[index];\n      setter(accumulator, value, iteratee(value), array);\n    }\n\n    return accumulator;\n  }\n  /**\n   * A specialized version of `_.forEach` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {Array} Returns `array`.\n   */\n\n\n  function arrayEach(array, iteratee) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      if (iteratee(array[index], index, array) === false) {\n        break;\n      }\n    }\n\n    return array;\n  }\n  /**\n   * A specialized version of `_.forEachRight` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {Array} Returns `array`.\n   */\n\n\n  function arrayEachRight(array, iteratee) {\n    var length = array == null ? 0 : array.length;\n\n    while (length--) {\n      if (iteratee(array[length], length, array) === false) {\n        break;\n      }\n    }\n\n    return array;\n  }\n  /**\n   * A specialized version of `_.every` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} predicate The function invoked per iteration.\n   * @returns {boolean} Returns `true` if all elements pass the predicate check,\n   *  else `false`.\n   */\n\n\n  function arrayEvery(array, predicate) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      if (!predicate(array[index], index, array)) {\n        return false;\n      }\n    }\n\n    return true;\n  }\n  /**\n   * A specialized version of `_.filter` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} predicate The function invoked per iteration.\n   * @returns {Array} Returns the new filtered array.\n   */\n\n\n  function arrayFilter(array, predicate) {\n    var index = -1,\n        length = array == null ? 0 : array.length,\n        resIndex = 0,\n        result = [];\n\n    while (++index < length) {\n      var value = array[index];\n\n      if (predicate(value, index, array)) {\n        result[resIndex++] = value;\n      }\n    }\n\n    return result;\n  }\n  /**\n   * A specialized version of `_.includes` for arrays without support for\n   * specifying an index to search from.\n   *\n   * @private\n   * @param {Array} [array] The array to inspect.\n   * @param {*} target The value to search for.\n   * @returns {boolean} Returns `true` if `target` is found, else `false`.\n   */\n\n\n  function arrayIncludes(array, value) {\n    var length = array == null ? 0 : array.length;\n    return !!length && baseIndexOf(array, value, 0) > -1;\n  }\n  /**\n   * This function is like `arrayIncludes` except that it accepts a comparator.\n   *\n   * @private\n   * @param {Array} [array] The array to inspect.\n   * @param {*} target The value to search for.\n   * @param {Function} comparator The comparator invoked per element.\n   * @returns {boolean} Returns `true` if `target` is found, else `false`.\n   */\n\n\n  function arrayIncludesWith(array, value, comparator) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      if (comparator(value, array[index])) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n  /**\n   * A specialized version of `_.map` for arrays without support for iteratee\n   * shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {Array} Returns the new mapped array.\n   */\n\n\n  function arrayMap(array, iteratee) {\n    var index = -1,\n        length = array == null ? 0 : array.length,\n        result = Array(length);\n\n    while (++index < length) {\n      result[index] = iteratee(array[index], index, array);\n    }\n\n    return result;\n  }\n  /**\n   * Appends the elements of `values` to `array`.\n   *\n   * @private\n   * @param {Array} array The array to modify.\n   * @param {Array} values The values to append.\n   * @returns {Array} Returns `array`.\n   */\n\n\n  function arrayPush(array, values) {\n    var index = -1,\n        length = values.length,\n        offset = array.length;\n\n    while (++index < length) {\n      array[offset + index] = values[index];\n    }\n\n    return array;\n  }\n  /**\n   * A specialized version of `_.reduce` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @param {*} [accumulator] The initial value.\n   * @param {boolean} [initAccum] Specify using the first element of `array` as\n   *  the initial value.\n   * @returns {*} Returns the accumulated value.\n   */\n\n\n  function arrayReduce(array, iteratee, accumulator, initAccum) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    if (initAccum && length) {\n      accumulator = array[++index];\n    }\n\n    while (++index < length) {\n      accumulator = iteratee(accumulator, array[index], index, array);\n    }\n\n    return accumulator;\n  }\n  /**\n   * A specialized version of `_.reduceRight` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @param {*} [accumulator] The initial value.\n   * @param {boolean} [initAccum] Specify using the last element of `array` as\n   *  the initial value.\n   * @returns {*} Returns the accumulated value.\n   */\n\n\n  function arrayReduceRight(array, iteratee, accumulator, initAccum) {\n    var length = array == null ? 0 : array.length;\n\n    if (initAccum && length) {\n      accumulator = array[--length];\n    }\n\n    while (length--) {\n      accumulator = iteratee(accumulator, array[length], length, array);\n    }\n\n    return accumulator;\n  }\n  /**\n   * A specialized version of `_.some` for arrays without support for iteratee\n   * shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} predicate The function invoked per iteration.\n   * @returns {boolean} Returns `true` if any element passes the predicate check,\n   *  else `false`.\n   */\n\n\n  function arraySome(array, predicate) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      if (predicate(array[index], index, array)) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n  /**\n   * Gets the size of an ASCII `string`.\n   *\n   * @private\n   * @param {string} string The string inspect.\n   * @returns {number} Returns the string size.\n   */\n\n\n  var asciiSize = baseProperty('length');\n  /**\n   * Converts an ASCII `string` to an array.\n   *\n   * @private\n   * @param {string} string The string to convert.\n   * @returns {Array} Returns the converted array.\n   */\n\n  function asciiToArray(string) {\n    return string.split('');\n  }\n  /**\n   * Splits an ASCII `string` into an array of its words.\n   *\n   * @private\n   * @param {string} The string to inspect.\n   * @returns {Array} Returns the words of `string`.\n   */\n\n\n  function asciiWords(string) {\n    return string.match(reAsciiWord) || [];\n  }\n  /**\n   * The base implementation of methods like `_.findKey` and `_.findLastKey`,\n   * without support for iteratee shorthands, which iterates over `collection`\n   * using `eachFunc`.\n   *\n   * @private\n   * @param {Array|Object} collection The collection to inspect.\n   * @param {Function} predicate The function invoked per iteration.\n   * @param {Function} eachFunc The function to iterate over `collection`.\n   * @returns {*} Returns the found element or its key, else `undefined`.\n   */\n\n\n  function baseFindKey(collection, predicate, eachFunc) {\n    var result;\n    eachFunc(collection, function (value, key, collection) {\n      if (predicate(value, key, collection)) {\n        result = key;\n        return false;\n      }\n    });\n    return result;\n  }\n  /**\n   * The base implementation of `_.findIndex` and `_.findLastIndex` without\n   * support for iteratee shorthands.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {Function} predicate The function invoked per iteration.\n   * @param {number} fromIndex The index to search from.\n   * @param {boolean} [fromRight] Specify iterating from right to left.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n\n\n  function baseFindIndex(array, predicate, fromIndex, fromRight) {\n    var length = array.length,\n        index = fromIndex + (fromRight ? 1 : -1);\n\n    while (fromRight ? index-- : ++index < length) {\n      if (predicate(array[index], index, array)) {\n        return index;\n      }\n    }\n\n    return -1;\n  }\n  /**\n   * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} value The value to search for.\n   * @param {number} fromIndex The index to search from.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n\n\n  function baseIndexOf(array, value, fromIndex) {\n    return value === value ? strictIndexOf(array, value, fromIndex) : baseFindIndex(array, baseIsNaN, fromIndex);\n  }\n  /**\n   * This function is like `baseIndexOf` except that it accepts a comparator.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} value The value to search for.\n   * @param {number} fromIndex The index to search from.\n   * @param {Function} comparator The comparator invoked per element.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n\n\n  function baseIndexOfWith(array, value, fromIndex, comparator) {\n    var index = fromIndex - 1,\n        length = array.length;\n\n    while (++index < length) {\n      if (comparator(array[index], value)) {\n        return index;\n      }\n    }\n\n    return -1;\n  }\n  /**\n   * The base implementation of `_.isNaN` without support for number objects.\n   *\n   * @private\n   * @param {*} value The value to check.\n   * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n   */\n\n\n  function baseIsNaN(value) {\n    return value !== value;\n  }\n  /**\n   * The base implementation of `_.mean` and `_.meanBy` without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} array The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {number} Returns the mean.\n   */\n\n\n  function baseMean(array, iteratee) {\n    var length = array == null ? 0 : array.length;\n    return length ? baseSum(array, iteratee) / length : NAN;\n  }\n  /**\n   * The base implementation of `_.property` without support for deep paths.\n   *\n   * @private\n   * @param {string} key The key of the property to get.\n   * @returns {Function} Returns the new accessor function.\n   */\n\n\n  function baseProperty(key) {\n    return function (object) {\n      return object == null ? undefined : object[key];\n    };\n  }\n  /**\n   * The base implementation of `_.propertyOf` without support for deep paths.\n   *\n   * @private\n   * @param {Object} object The object to query.\n   * @returns {Function} Returns the new accessor function.\n   */\n\n\n  function basePropertyOf(object) {\n    return function (key) {\n      return object == null ? undefined : object[key];\n    };\n  }\n  /**\n   * The base implementation of `_.reduce` and `_.reduceRight`, without support\n   * for iteratee shorthands, which iterates over `collection` using `eachFunc`.\n   *\n   * @private\n   * @param {Array|Object} collection The collection to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @param {*} accumulator The initial value.\n   * @param {boolean} initAccum Specify using the first or last element of\n   *  `collection` as the initial value.\n   * @param {Function} eachFunc The function to iterate over `collection`.\n   * @returns {*} Returns the accumulated value.\n   */\n\n\n  function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {\n    eachFunc(collection, function (value, index, collection) {\n      accumulator = initAccum ? (initAccum = false, value) : iteratee(accumulator, value, index, collection);\n    });\n    return accumulator;\n  }\n  /**\n   * The base implementation of `_.sortBy` which uses `comparer` to define the\n   * sort order of `array` and replaces criteria objects with their corresponding\n   * values.\n   *\n   * @private\n   * @param {Array} array The array to sort.\n   * @param {Function} comparer The function to define sort order.\n   * @returns {Array} Returns `array`.\n   */\n\n\n  function baseSortBy(array, comparer) {\n    var length = array.length;\n    array.sort(comparer);\n\n    while (length--) {\n      array[length] = array[length].value;\n    }\n\n    return array;\n  }\n  /**\n   * The base implementation of `_.sum` and `_.sumBy` without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} array The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {number} Returns the sum.\n   */\n\n\n  function baseSum(array, iteratee) {\n    var result,\n        index = -1,\n        length = array.length;\n\n    while (++index < length) {\n      var current = iteratee(array[index]);\n\n      if (current !== undefined) {\n        result = result === undefined ? current : result + current;\n      }\n    }\n\n    return result;\n  }\n  /**\n   * The base implementation of `_.times` without support for iteratee shorthands\n   * or max array length checks.\n   *\n   * @private\n   * @param {number} n The number of times to invoke `iteratee`.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {Array} Returns the array of results.\n   */\n\n\n  function baseTimes(n, iteratee) {\n    var index = -1,\n        result = Array(n);\n\n    while (++index < n) {\n      result[index] = iteratee(index);\n    }\n\n    return result;\n  }\n  /**\n   * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array\n   * of key-value pairs for `object` corresponding to the property names of `props`.\n   *\n   * @private\n   * @param {Object} object The object to query.\n   * @param {Array} props The property names to get values for.\n   * @returns {Object} Returns the key-value pairs.\n   */\n\n\n  function baseToPairs(object, props) {\n    return arrayMap(props, function (key) {\n      return [key, object[key]];\n    });\n  }\n  /**\n   * The base implementation of `_.unary` without support for storing metadata.\n   *\n   * @private\n   * @param {Function} func The function to cap arguments for.\n   * @returns {Function} Returns the new capped function.\n   */\n\n\n  function baseUnary(func) {\n    return function (value) {\n      return func(value);\n    };\n  }\n  /**\n   * The base implementation of `_.values` and `_.valuesIn` which creates an\n   * array of `object` property values corresponding to the property names\n   * of `props`.\n   *\n   * @private\n   * @param {Object} object The object to query.\n   * @param {Array} props The property names to get values for.\n   * @returns {Object} Returns the array of property values.\n   */\n\n\n  function baseValues(object, props) {\n    return arrayMap(props, function (key) {\n      return object[key];\n    });\n  }\n  /**\n   * Checks if a `cache` value for `key` exists.\n   *\n   * @private\n   * @param {Object} cache The cache to query.\n   * @param {string} key The key of the entry to check.\n   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n   */\n\n\n  function cacheHas(cache, key) {\n    return cache.has(key);\n  }\n  /**\n   * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol\n   * that is not found in the character symbols.\n   *\n   * @private\n   * @param {Array} strSymbols The string symbols to inspect.\n   * @param {Array} chrSymbols The character symbols to find.\n   * @returns {number} Returns the index of the first unmatched string symbol.\n   */\n\n\n  function charsStartIndex(strSymbols, chrSymbols) {\n    var index = -1,\n        length = strSymbols.length;\n\n    while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n\n    return index;\n  }\n  /**\n   * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol\n   * that is not found in the character symbols.\n   *\n   * @private\n   * @param {Array} strSymbols The string symbols to inspect.\n   * @param {Array} chrSymbols The character symbols to find.\n   * @returns {number} Returns the index of the last unmatched string symbol.\n   */\n\n\n  function charsEndIndex(strSymbols, chrSymbols) {\n    var index = strSymbols.length;\n\n    while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n\n    return index;\n  }\n  /**\n   * Gets the number of `placeholder` occurrences in `array`.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} placeholder The placeholder to search for.\n   * @returns {number} Returns the placeholder count.\n   */\n\n\n  function countHolders(array, placeholder) {\n    var length = array.length,\n        result = 0;\n\n    while (length--) {\n      if (array[length] === placeholder) {\n        ++result;\n      }\n    }\n\n    return result;\n  }\n  /**\n   * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A\n   * letters to basic Latin letters.\n   *\n   * @private\n   * @param {string} letter The matched letter to deburr.\n   * @returns {string} Returns the deburred letter.\n   */\n\n\n  var deburrLetter = basePropertyOf(deburredLetters);\n  /**\n   * Used by `_.escape` to convert characters to HTML entities.\n   *\n   * @private\n   * @param {string} chr The matched character to escape.\n   * @returns {string} Returns the escaped character.\n   */\n\n  var escapeHtmlChar = basePropertyOf(htmlEscapes);\n  /**\n   * Used by `_.template` to escape characters for inclusion in compiled string literals.\n   *\n   * @private\n   * @param {string} chr The matched character to escape.\n   * @returns {string} Returns the escaped character.\n   */\n\n  function escapeStringChar(chr) {\n    return '\\\\' + stringEscapes[chr];\n  }\n  /**\n   * Gets the value at `key` of `object`.\n   *\n   * @private\n   * @param {Object} [object] The object to query.\n   * @param {string} key The key of the property to get.\n   * @returns {*} Returns the property value.\n   */\n\n\n  function getValue(object, key) {\n    return object == null ? undefined : object[key];\n  }\n  /**\n   * Checks if `string` contains Unicode symbols.\n   *\n   * @private\n   * @param {string} string The string to inspect.\n   * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n   */\n\n\n  function hasUnicode(string) {\n    return reHasUnicode.test(string);\n  }\n  /**\n   * Checks if `string` contains a word composed of Unicode symbols.\n   *\n   * @private\n   * @param {string} string The string to inspect.\n   * @returns {boolean} Returns `true` if a word is found, else `false`.\n   */\n\n\n  function hasUnicodeWord(string) {\n    return reHasUnicodeWord.test(string);\n  }\n  /**\n   * Converts `iterator` to an array.\n   *\n   * @private\n   * @param {Object} iterator The iterator to convert.\n   * @returns {Array} Returns the converted array.\n   */\n\n\n  function iteratorToArray(iterator) {\n    var data,\n        result = [];\n\n    while (!(data = iterator.next()).done) {\n      result.push(data.value);\n    }\n\n    return result;\n  }\n  /**\n   * Converts `map` to its key-value pairs.\n   *\n   * @private\n   * @param {Object} map The map to convert.\n   * @returns {Array} Returns the key-value pairs.\n   */\n\n\n  function mapToArray(map) {\n    var index = -1,\n        result = Array(map.size);\n    map.forEach(function (value, key) {\n      result[++index] = [key, value];\n    });\n    return result;\n  }\n  /**\n   * Creates a unary function that invokes `func` with its argument transformed.\n   *\n   * @private\n   * @param {Function} func The function to wrap.\n   * @param {Function} transform The argument transform.\n   * @returns {Function} Returns the new function.\n   */\n\n\n  function overArg(func, transform) {\n    return function (arg) {\n      return func(transform(arg));\n    };\n  }\n  /**\n   * Replaces all `placeholder` elements in `array` with an internal placeholder\n   * and returns an array of their indexes.\n   *\n   * @private\n   * @param {Array} array The array to modify.\n   * @param {*} placeholder The placeholder to replace.\n   * @returns {Array} Returns the new array of placeholder indexes.\n   */\n\n\n  function replaceHolders(array, placeholder) {\n    var index = -1,\n        length = array.length,\n        resIndex = 0,\n        result = [];\n\n    while (++index < length) {\n      var value = array[index];\n\n      if (value === placeholder || value === PLACEHOLDER) {\n        array[index] = PLACEHOLDER;\n        result[resIndex++] = index;\n      }\n    }\n\n    return result;\n  }\n  /**\n   * Converts `set` to an array of its values.\n   *\n   * @private\n   * @param {Object} set The set to convert.\n   * @returns {Array} Returns the values.\n   */\n\n\n  function setToArray(set) {\n    var index = -1,\n        result = Array(set.size);\n    set.forEach(function (value) {\n      result[++index] = value;\n    });\n    return result;\n  }\n  /**\n   * Converts `set` to its value-value pairs.\n   *\n   * @private\n   * @param {Object} set The set to convert.\n   * @returns {Array} Returns the value-value pairs.\n   */\n\n\n  function setToPairs(set) {\n    var index = -1,\n        result = Array(set.size);\n    set.forEach(function (value) {\n      result[++index] = [value, value];\n    });\n    return result;\n  }\n  /**\n   * A specialized version of `_.indexOf` which performs strict equality\n   * comparisons of values, i.e. `===`.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} value The value to search for.\n   * @param {number} fromIndex The index to search from.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n\n\n  function strictIndexOf(array, value, fromIndex) {\n    var index = fromIndex - 1,\n        length = array.length;\n\n    while (++index < length) {\n      if (array[index] === value) {\n        return index;\n      }\n    }\n\n    return -1;\n  }\n  /**\n   * A specialized version of `_.lastIndexOf` which performs strict equality\n   * comparisons of values, i.e. `===`.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} value The value to search for.\n   * @param {number} fromIndex The index to search from.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n\n\n  function strictLastIndexOf(array, value, fromIndex) {\n    var index = fromIndex + 1;\n\n    while (index--) {\n      if (array[index] === value) {\n        return index;\n      }\n    }\n\n    return index;\n  }\n  /**\n   * Gets the number of symbols in `string`.\n   *\n   * @private\n   * @param {string} string The string to inspect.\n   * @returns {number} Returns the string size.\n   */\n\n\n  function stringSize(string) {\n    return hasUnicode(string) ? unicodeSize(string) : asciiSize(string);\n  }\n  /**\n   * Converts `string` to an array.\n   *\n   * @private\n   * @param {string} string The string to convert.\n   * @returns {Array} Returns the converted array.\n   */\n\n\n  function stringToArray(string) {\n    return hasUnicode(string) ? unicodeToArray(string) : asciiToArray(string);\n  }\n  /**\n   * Used by `_.unescape` to convert HTML entities to characters.\n   *\n   * @private\n   * @param {string} chr The matched character to unescape.\n   * @returns {string} Returns the unescaped character.\n   */\n\n\n  var unescapeHtmlChar = basePropertyOf(htmlUnescapes);\n  /**\n   * Gets the size of a Unicode `string`.\n   *\n   * @private\n   * @param {string} string The string inspect.\n   * @returns {number} Returns the string size.\n   */\n\n  function unicodeSize(string) {\n    var result = reUnicode.lastIndex = 0;\n\n    while (reUnicode.test(string)) {\n      ++result;\n    }\n\n    return result;\n  }\n  /**\n   * Converts a Unicode `string` to an array.\n   *\n   * @private\n   * @param {string} string The string to convert.\n   * @returns {Array} Returns the converted array.\n   */\n\n\n  function unicodeToArray(string) {\n    return string.match(reUnicode) || [];\n  }\n  /**\n   * Splits a Unicode `string` into an array of its words.\n   *\n   * @private\n   * @param {string} The string to inspect.\n   * @returns {Array} Returns the words of `string`.\n   */\n\n\n  function unicodeWords(string) {\n    return string.match(reUnicodeWord) || [];\n  }\n  /*--------------------------------------------------------------------------*/\n\n  /**\n   * Create a new pristine `lodash` function using the `context` object.\n   *\n   * @static\n   * @memberOf _\n   * @since 1.1.0\n   * @category Util\n   * @param {Object} [context=root] The context object.\n   * @returns {Function} Returns a new `lodash` function.\n   * @example\n   *\n   * _.mixin({ 'foo': _.constant('foo') });\n   *\n   * var lodash = _.runInContext();\n   * lodash.mixin({ 'bar': lodash.constant('bar') });\n   *\n   * _.isFunction(_.foo);\n   * // => true\n   * _.isFunction(_.bar);\n   * // => false\n   *\n   * lodash.isFunction(lodash.foo);\n   * // => false\n   * lodash.isFunction(lodash.bar);\n   * // => true\n   *\n   * // Create a suped-up `defer` in Node.js.\n   * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;\n   */\n\n\n  var runInContext = function runInContext(context) {\n    context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));\n    /** Built-in constructor references. */\n\n    var Array = context.Array,\n        Date = context.Date,\n        Error = context.Error,\n        Function = context.Function,\n        Math = context.Math,\n        Object = context.Object,\n        RegExp = context.RegExp,\n        String = context.String,\n        TypeError = context.TypeError;\n    /** Used for built-in method references. */\n\n    var arrayProto = Array.prototype,\n        funcProto = Function.prototype,\n        objectProto = Object.prototype;\n    /** Used to detect overreaching core-js shims. */\n\n    var coreJsData = context['__core-js_shared__'];\n    /** Used to resolve the decompiled source of functions. */\n\n    var funcToString = funcProto.toString;\n    /** Used to check objects for own properties. */\n\n    var hasOwnProperty = objectProto.hasOwnProperty;\n    /** Used to generate unique IDs. */\n\n    var idCounter = 0;\n    /** Used to detect methods masquerading as native. */\n\n    var maskSrcKey = function () {\n      var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n      return uid ? 'Symbol(src)_1.' + uid : '';\n    }();\n    /**\n     * Used to resolve the\n     * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n     * of values.\n     */\n\n\n    var nativeObjectToString = objectProto.toString;\n    /** Used to infer the `Object` constructor. */\n\n    var objectCtorString = funcToString.call(Object);\n    /** Used to restore the original `_` reference in `_.noConflict`. */\n\n    var oldDash = root._;\n    /** Used to detect if a method is native. */\n\n    var reIsNative = RegExp('^' + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&').replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$');\n    /** Built-in value references. */\n\n    var Buffer = moduleExports ? context.Buffer : undefined,\n        _Symbol = context.Symbol,\n        Uint8Array = context.Uint8Array,\n        allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,\n        getPrototype = overArg(Object.getPrototypeOf, Object),\n        objectCreate = Object.create,\n        propertyIsEnumerable = objectProto.propertyIsEnumerable,\n        splice = arrayProto.splice,\n        spreadableSymbol = _Symbol ? _Symbol.isConcatSpreadable : undefined,\n        symIterator = _Symbol ? _Symbol.iterator : undefined,\n        symToStringTag = _Symbol ? _Symbol.toStringTag : undefined;\n\n    var defineProperty = function () {\n      try {\n        var func = getNative(Object, 'defineProperty');\n        func({}, '', {});\n        return func;\n      } catch (e) {}\n    }();\n    /** Mocked built-ins. */\n\n\n    var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,\n        ctxNow = Date && Date.now !== root.Date.now && Date.now,\n        ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;\n    /* Built-in method references for those with the same name as other `lodash` methods. */\n\n    var nativeCeil = Math.ceil,\n        nativeFloor = Math.floor,\n        nativeGetSymbols = Object.getOwnPropertySymbols,\n        nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n        nativeIsFinite = context.isFinite,\n        nativeJoin = arrayProto.join,\n        nativeKeys = overArg(Object.keys, Object),\n        nativeMax = Math.max,\n        nativeMin = Math.min,\n        nativeNow = Date.now,\n        nativeParseInt = context.parseInt,\n        nativeRandom = Math.random,\n        nativeReverse = arrayProto.reverse;\n    /* Built-in method references that are verified to be native. */\n\n    var DataView = getNative(context, 'DataView'),\n        Map = getNative(context, 'Map'),\n        Promise = getNative(context, 'Promise'),\n        Set = getNative(context, 'Set'),\n        WeakMap = getNative(context, 'WeakMap'),\n        nativeCreate = getNative(Object, 'create');\n    /** Used to store function metadata. */\n\n    var metaMap = WeakMap && new WeakMap();\n    /** Used to lookup unminified function names. */\n\n    var realNames = {};\n    /** Used to detect maps, sets, and weakmaps. */\n\n    var dataViewCtorString = toSource(DataView),\n        mapCtorString = toSource(Map),\n        promiseCtorString = toSource(Promise),\n        setCtorString = toSource(Set),\n        weakMapCtorString = toSource(WeakMap);\n    /** Used to convert symbols to primitives and strings. */\n\n    var symbolProto = _Symbol ? _Symbol.prototype : undefined,\n        symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,\n        symbolToString = symbolProto ? symbolProto.toString : undefined;\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a `lodash` object which wraps `value` to enable implicit method\n     * chain sequences. Methods that operate on and return arrays, collections,\n     * and functions can be chained together. Methods that retrieve a single value\n     * or may return a primitive value will automatically end the chain sequence\n     * and return the unwrapped value. Otherwise, the value must be unwrapped\n     * with `_#value`.\n     *\n     * Explicit chain sequences, which must be unwrapped with `_#value`, may be\n     * enabled using `_.chain`.\n     *\n     * The execution of chained methods is lazy, that is, it's deferred until\n     * `_#value` is implicitly or explicitly called.\n     *\n     * Lazy evaluation allows several methods to support shortcut fusion.\n     * Shortcut fusion is an optimization to merge iteratee calls; this avoids\n     * the creation of intermediate arrays and can greatly reduce the number of\n     * iteratee executions. Sections of a chain sequence qualify for shortcut\n     * fusion if the section is applied to an array and iteratees accept only\n     * one argument. The heuristic for whether a section qualifies for shortcut\n     * fusion is subject to change.\n     *\n     * Chaining is supported in custom builds as long as the `_#value` method is\n     * directly or indirectly included in the build.\n     *\n     * In addition to lodash methods, wrappers have `Array` and `String` methods.\n     *\n     * The wrapper `Array` methods are:\n     * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`\n     *\n     * The wrapper `String` methods are:\n     * `replace` and `split`\n     *\n     * The wrapper methods that support shortcut fusion are:\n     * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,\n     * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,\n     * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`\n     *\n     * The chainable wrapper methods are:\n     * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,\n     * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,\n     * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,\n     * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,\n     * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,\n     * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,\n     * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,\n     * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,\n     * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,\n     * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,\n     * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,\n     * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,\n     * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,\n     * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,\n     * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,\n     * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,\n     * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,\n     * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,\n     * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,\n     * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,\n     * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,\n     * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,\n     * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,\n     * `zipObject`, `zipObjectDeep`, and `zipWith`\n     *\n     * The wrapper methods that are **not** chainable by default are:\n     * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,\n     * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,\n     * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,\n     * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,\n     * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,\n     * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,\n     * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,\n     * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,\n     * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,\n     * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,\n     * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,\n     * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,\n     * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,\n     * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,\n     * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,\n     * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,\n     * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,\n     * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,\n     * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,\n     * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,\n     * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,\n     * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,\n     * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,\n     * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,\n     * `upperFirst`, `value`, and `words`\n     *\n     * @name _\n     * @constructor\n     * @category Seq\n     * @param {*} value The value to wrap in a `lodash` instance.\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var wrapped = _([1, 2, 3]);\n     *\n     * // Returns an unwrapped value.\n     * wrapped.reduce(_.add);\n     * // => 6\n     *\n     * // Returns a wrapped value.\n     * var squares = wrapped.map(square);\n     *\n     * _.isArray(squares);\n     * // => false\n     *\n     * _.isArray(squares.value());\n     * // => true\n     */\n\n    function lodash(value) {\n      if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {\n        if (value instanceof LodashWrapper) {\n          return value;\n        }\n\n        if (hasOwnProperty.call(value, '__wrapped__')) {\n          return wrapperClone(value);\n        }\n      }\n\n      return new LodashWrapper(value);\n    }\n    /**\n     * The base implementation of `_.create` without support for assigning\n     * properties to the created object.\n     *\n     * @private\n     * @param {Object} proto The object to inherit from.\n     * @returns {Object} Returns the new object.\n     */\n\n\n    var baseCreate = function () {\n      function object() {}\n\n      return function (proto) {\n        if (!isObject(proto)) {\n          return {};\n        }\n\n        if (objectCreate) {\n          return objectCreate(proto);\n        }\n\n        object.prototype = proto;\n        var result = new object();\n        object.prototype = undefined;\n        return result;\n      };\n    }();\n    /**\n     * The function whose prototype chain sequence wrappers inherit from.\n     *\n     * @private\n     */\n\n\n    function baseLodash() {// No operation performed.\n    }\n    /**\n     * The base constructor for creating `lodash` wrapper objects.\n     *\n     * @private\n     * @param {*} value The value to wrap.\n     * @param {boolean} [chainAll] Enable explicit method chain sequences.\n     */\n\n\n    function LodashWrapper(value, chainAll) {\n      this.__wrapped__ = value;\n      this.__actions__ = [];\n      this.__chain__ = !!chainAll;\n      this.__index__ = 0;\n      this.__values__ = undefined;\n    }\n    /**\n     * By default, the template delimiters used by lodash are like those in\n     * embedded Ruby (ERB) as well as ES2015 template strings. Change the\n     * following template settings to use alternative delimiters.\n     *\n     * @static\n     * @memberOf _\n     * @type {Object}\n     */\n\n\n    lodash.templateSettings = {\n      /**\n       * Used to detect `data` property values to be HTML-escaped.\n       *\n       * @memberOf _.templateSettings\n       * @type {RegExp}\n       */\n      'escape': reEscape,\n\n      /**\n       * Used to detect code to be evaluated.\n       *\n       * @memberOf _.templateSettings\n       * @type {RegExp}\n       */\n      'evaluate': reEvaluate,\n\n      /**\n       * Used to detect `data` property values to inject.\n       *\n       * @memberOf _.templateSettings\n       * @type {RegExp}\n       */\n      'interpolate': reInterpolate,\n\n      /**\n       * Used to reference the data object in the template text.\n       *\n       * @memberOf _.templateSettings\n       * @type {string}\n       */\n      'variable': '',\n\n      /**\n       * Used to import variables into the compiled template.\n       *\n       * @memberOf _.templateSettings\n       * @type {Object}\n       */\n      'imports': {\n        /**\n         * A reference to the `lodash` function.\n         *\n         * @memberOf _.templateSettings.imports\n         * @type {Function}\n         */\n        '_': lodash\n      }\n    }; // Ensure wrappers are instances of `baseLodash`.\n\n    lodash.prototype = baseLodash.prototype;\n    lodash.prototype.constructor = lodash;\n    LodashWrapper.prototype = baseCreate(baseLodash.prototype);\n    LodashWrapper.prototype.constructor = LodashWrapper;\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.\n     *\n     * @private\n     * @constructor\n     * @param {*} value The value to wrap.\n     */\n\n    function LazyWrapper(value) {\n      this.__wrapped__ = value;\n      this.__actions__ = [];\n      this.__dir__ = 1;\n      this.__filtered__ = false;\n      this.__iteratees__ = [];\n      this.__takeCount__ = MAX_ARRAY_LENGTH;\n      this.__views__ = [];\n    }\n    /**\n     * Creates a clone of the lazy wrapper object.\n     *\n     * @private\n     * @name clone\n     * @memberOf LazyWrapper\n     * @returns {Object} Returns the cloned `LazyWrapper` object.\n     */\n\n\n    function lazyClone() {\n      var result = new LazyWrapper(this.__wrapped__);\n      result.__actions__ = copyArray(this.__actions__);\n      result.__dir__ = this.__dir__;\n      result.__filtered__ = this.__filtered__;\n      result.__iteratees__ = copyArray(this.__iteratees__);\n      result.__takeCount__ = this.__takeCount__;\n      result.__views__ = copyArray(this.__views__);\n      return result;\n    }\n    /**\n     * Reverses the direction of lazy iteration.\n     *\n     * @private\n     * @name reverse\n     * @memberOf LazyWrapper\n     * @returns {Object} Returns the new reversed `LazyWrapper` object.\n     */\n\n\n    function lazyReverse() {\n      if (this.__filtered__) {\n        var result = new LazyWrapper(this);\n        result.__dir__ = -1;\n        result.__filtered__ = true;\n      } else {\n        result = this.clone();\n        result.__dir__ *= -1;\n      }\n\n      return result;\n    }\n    /**\n     * Extracts the unwrapped value from its lazy wrapper.\n     *\n     * @private\n     * @name value\n     * @memberOf LazyWrapper\n     * @returns {*} Returns the unwrapped value.\n     */\n\n\n    function lazyValue() {\n      var array = this.__wrapped__.value(),\n          dir = this.__dir__,\n          isArr = isArray(array),\n          isRight = dir < 0,\n          arrLength = isArr ? array.length : 0,\n          view = getView(0, arrLength, this.__views__),\n          start = view.start,\n          end = view.end,\n          length = end - start,\n          index = isRight ? end : start - 1,\n          iteratees = this.__iteratees__,\n          iterLength = iteratees.length,\n          resIndex = 0,\n          takeCount = nativeMin(length, this.__takeCount__);\n\n      if (!isArr || !isRight && arrLength == length && takeCount == length) {\n        return baseWrapperValue(array, this.__actions__);\n      }\n\n      var result = [];\n\n      outer: while (length-- && resIndex < takeCount) {\n        index += dir;\n        var iterIndex = -1,\n            value = array[index];\n\n        while (++iterIndex < iterLength) {\n          var data = iteratees[iterIndex],\n              iteratee = data.iteratee,\n              type = data.type,\n              computed = iteratee(value);\n\n          if (type == LAZY_MAP_FLAG) {\n            value = computed;\n          } else if (!computed) {\n            if (type == LAZY_FILTER_FLAG) {\n              continue outer;\n            } else {\n              break outer;\n            }\n          }\n        }\n\n        result[resIndex++] = value;\n      }\n\n      return result;\n    } // Ensure `LazyWrapper` is an instance of `baseLodash`.\n\n\n    LazyWrapper.prototype = baseCreate(baseLodash.prototype);\n    LazyWrapper.prototype.constructor = LazyWrapper;\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a hash object.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [entries] The key-value pairs to cache.\n     */\n\n    function Hash(entries) {\n      var index = -1,\n          length = entries == null ? 0 : entries.length;\n      this.clear();\n\n      while (++index < length) {\n        var entry = entries[index];\n        this.set(entry[0], entry[1]);\n      }\n    }\n    /**\n     * Removes all key-value entries from the hash.\n     *\n     * @private\n     * @name clear\n     * @memberOf Hash\n     */\n\n\n    function hashClear() {\n      this.__data__ = nativeCreate ? nativeCreate(null) : {};\n      this.size = 0;\n    }\n    /**\n     * Removes `key` and its value from the hash.\n     *\n     * @private\n     * @name delete\n     * @memberOf Hash\n     * @param {Object} hash The hash to modify.\n     * @param {string} key The key of the value to remove.\n     * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n     */\n\n\n    function hashDelete(key) {\n      var result = this.has(key) && delete this.__data__[key];\n      this.size -= result ? 1 : 0;\n      return result;\n    }\n    /**\n     * Gets the hash value for `key`.\n     *\n     * @private\n     * @name get\n     * @memberOf Hash\n     * @param {string} key The key of the value to get.\n     * @returns {*} Returns the entry value.\n     */\n\n\n    function hashGet(key) {\n      var data = this.__data__;\n\n      if (nativeCreate) {\n        var result = data[key];\n        return result === HASH_UNDEFINED ? undefined : result;\n      }\n\n      return hasOwnProperty.call(data, key) ? data[key] : undefined;\n    }\n    /**\n     * Checks if a hash value for `key` exists.\n     *\n     * @private\n     * @name has\n     * @memberOf Hash\n     * @param {string} key The key of the entry to check.\n     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n     */\n\n\n    function hashHas(key) {\n      var data = this.__data__;\n      return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key);\n    }\n    /**\n     * Sets the hash `key` to `value`.\n     *\n     * @private\n     * @name set\n     * @memberOf Hash\n     * @param {string} key The key of the value to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns the hash instance.\n     */\n\n\n    function hashSet(key, value) {\n      var data = this.__data__;\n      this.size += this.has(key) ? 0 : 1;\n      data[key] = nativeCreate && value === undefined ? HASH_UNDEFINED : value;\n      return this;\n    } // Add methods to `Hash`.\n\n\n    Hash.prototype.clear = hashClear;\n    Hash.prototype['delete'] = hashDelete;\n    Hash.prototype.get = hashGet;\n    Hash.prototype.has = hashHas;\n    Hash.prototype.set = hashSet;\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates an list cache object.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [entries] The key-value pairs to cache.\n     */\n\n    function ListCache(entries) {\n      var index = -1,\n          length = entries == null ? 0 : entries.length;\n      this.clear();\n\n      while (++index < length) {\n        var entry = entries[index];\n        this.set(entry[0], entry[1]);\n      }\n    }\n    /**\n     * Removes all key-value entries from the list cache.\n     *\n     * @private\n     * @name clear\n     * @memberOf ListCache\n     */\n\n\n    function listCacheClear() {\n      this.__data__ = [];\n      this.size = 0;\n    }\n    /**\n     * Removes `key` and its value from the list cache.\n     *\n     * @private\n     * @name delete\n     * @memberOf ListCache\n     * @param {string} key The key of the value to remove.\n     * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n     */\n\n\n    function listCacheDelete(key) {\n      var data = this.__data__,\n          index = assocIndexOf(data, key);\n\n      if (index < 0) {\n        return false;\n      }\n\n      var lastIndex = data.length - 1;\n\n      if (index == lastIndex) {\n        data.pop();\n      } else {\n        splice.call(data, index, 1);\n      }\n\n      --this.size;\n      return true;\n    }\n    /**\n     * Gets the list cache value for `key`.\n     *\n     * @private\n     * @name get\n     * @memberOf ListCache\n     * @param {string} key The key of the value to get.\n     * @returns {*} Returns the entry value.\n     */\n\n\n    function listCacheGet(key) {\n      var data = this.__data__,\n          index = assocIndexOf(data, key);\n      return index < 0 ? undefined : data[index][1];\n    }\n    /**\n     * Checks if a list cache value for `key` exists.\n     *\n     * @private\n     * @name has\n     * @memberOf ListCache\n     * @param {string} key The key of the entry to check.\n     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n     */\n\n\n    function listCacheHas(key) {\n      return assocIndexOf(this.__data__, key) > -1;\n    }\n    /**\n     * Sets the list cache `key` to `value`.\n     *\n     * @private\n     * @name set\n     * @memberOf ListCache\n     * @param {string} key The key of the value to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns the list cache instance.\n     */\n\n\n    function listCacheSet(key, value) {\n      var data = this.__data__,\n          index = assocIndexOf(data, key);\n\n      if (index < 0) {\n        ++this.size;\n        data.push([key, value]);\n      } else {\n        data[index][1] = value;\n      }\n\n      return this;\n    } // Add methods to `ListCache`.\n\n\n    ListCache.prototype.clear = listCacheClear;\n    ListCache.prototype['delete'] = listCacheDelete;\n    ListCache.prototype.get = listCacheGet;\n    ListCache.prototype.has = listCacheHas;\n    ListCache.prototype.set = listCacheSet;\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a map cache object to store key-value pairs.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [entries] The key-value pairs to cache.\n     */\n\n    function MapCache(entries) {\n      var index = -1,\n          length = entries == null ? 0 : entries.length;\n      this.clear();\n\n      while (++index < length) {\n        var entry = entries[index];\n        this.set(entry[0], entry[1]);\n      }\n    }\n    /**\n     * Removes all key-value entries from the map.\n     *\n     * @private\n     * @name clear\n     * @memberOf MapCache\n     */\n\n\n    function mapCacheClear() {\n      this.size = 0;\n      this.__data__ = {\n        'hash': new Hash(),\n        'map': new (Map || ListCache)(),\n        'string': new Hash()\n      };\n    }\n    /**\n     * Removes `key` and its value from the map.\n     *\n     * @private\n     * @name delete\n     * @memberOf MapCache\n     * @param {string} key The key of the value to remove.\n     * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n     */\n\n\n    function mapCacheDelete(key) {\n      var result = getMapData(this, key)['delete'](key);\n      this.size -= result ? 1 : 0;\n      return result;\n    }\n    /**\n     * Gets the map value for `key`.\n     *\n     * @private\n     * @name get\n     * @memberOf MapCache\n     * @param {string} key The key of the value to get.\n     * @returns {*} Returns the entry value.\n     */\n\n\n    function mapCacheGet(key) {\n      return getMapData(this, key).get(key);\n    }\n    /**\n     * Checks if a map value for `key` exists.\n     *\n     * @private\n     * @name has\n     * @memberOf MapCache\n     * @param {string} key The key of the entry to check.\n     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n     */\n\n\n    function mapCacheHas(key) {\n      return getMapData(this, key).has(key);\n    }\n    /**\n     * Sets the map `key` to `value`.\n     *\n     * @private\n     * @name set\n     * @memberOf MapCache\n     * @param {string} key The key of the value to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns the map cache instance.\n     */\n\n\n    function mapCacheSet(key, value) {\n      var data = getMapData(this, key),\n          size = data.size;\n      data.set(key, value);\n      this.size += data.size == size ? 0 : 1;\n      return this;\n    } // Add methods to `MapCache`.\n\n\n    MapCache.prototype.clear = mapCacheClear;\n    MapCache.prototype['delete'] = mapCacheDelete;\n    MapCache.prototype.get = mapCacheGet;\n    MapCache.prototype.has = mapCacheHas;\n    MapCache.prototype.set = mapCacheSet;\n    /*------------------------------------------------------------------------*/\n\n    /**\n     *\n     * Creates an array cache object to store unique values.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [values] The values to cache.\n     */\n\n    function SetCache(values) {\n      var index = -1,\n          length = values == null ? 0 : values.length;\n      this.__data__ = new MapCache();\n\n      while (++index < length) {\n        this.add(values[index]);\n      }\n    }\n    /**\n     * Adds `value` to the array cache.\n     *\n     * @private\n     * @name add\n     * @memberOf SetCache\n     * @alias push\n     * @param {*} value The value to cache.\n     * @returns {Object} Returns the cache instance.\n     */\n\n\n    function setCacheAdd(value) {\n      this.__data__.set(value, HASH_UNDEFINED);\n\n      return this;\n    }\n    /**\n     * Checks if `value` is in the array cache.\n     *\n     * @private\n     * @name has\n     * @memberOf SetCache\n     * @param {*} value The value to search for.\n     * @returns {number} Returns `true` if `value` is found, else `false`.\n     */\n\n\n    function setCacheHas(value) {\n      return this.__data__.has(value);\n    } // Add methods to `SetCache`.\n\n\n    SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\n    SetCache.prototype.has = setCacheHas;\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a stack cache object to store key-value pairs.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [entries] The key-value pairs to cache.\n     */\n\n    function Stack(entries) {\n      var data = this.__data__ = new ListCache(entries);\n      this.size = data.size;\n    }\n    /**\n     * Removes all key-value entries from the stack.\n     *\n     * @private\n     * @name clear\n     * @memberOf Stack\n     */\n\n\n    function stackClear() {\n      this.__data__ = new ListCache();\n      this.size = 0;\n    }\n    /**\n     * Removes `key` and its value from the stack.\n     *\n     * @private\n     * @name delete\n     * @memberOf Stack\n     * @param {string} key The key of the value to remove.\n     * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n     */\n\n\n    function stackDelete(key) {\n      var data = this.__data__,\n          result = data['delete'](key);\n      this.size = data.size;\n      return result;\n    }\n    /**\n     * Gets the stack value for `key`.\n     *\n     * @private\n     * @name get\n     * @memberOf Stack\n     * @param {string} key The key of the value to get.\n     * @returns {*} Returns the entry value.\n     */\n\n\n    function stackGet(key) {\n      return this.__data__.get(key);\n    }\n    /**\n     * Checks if a stack value for `key` exists.\n     *\n     * @private\n     * @name has\n     * @memberOf Stack\n     * @param {string} key The key of the entry to check.\n     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n     */\n\n\n    function stackHas(key) {\n      return this.__data__.has(key);\n    }\n    /**\n     * Sets the stack `key` to `value`.\n     *\n     * @private\n     * @name set\n     * @memberOf Stack\n     * @param {string} key The key of the value to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns the stack cache instance.\n     */\n\n\n    function stackSet(key, value) {\n      var data = this.__data__;\n\n      if (data instanceof ListCache) {\n        var pairs = data.__data__;\n\n        if (!Map || pairs.length < LARGE_ARRAY_SIZE - 1) {\n          pairs.push([key, value]);\n          this.size = ++data.size;\n          return this;\n        }\n\n        data = this.__data__ = new MapCache(pairs);\n      }\n\n      data.set(key, value);\n      this.size = data.size;\n      return this;\n    } // Add methods to `Stack`.\n\n\n    Stack.prototype.clear = stackClear;\n    Stack.prototype['delete'] = stackDelete;\n    Stack.prototype.get = stackGet;\n    Stack.prototype.has = stackHas;\n    Stack.prototype.set = stackSet;\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates an array of the enumerable property names of the array-like `value`.\n     *\n     * @private\n     * @param {*} value The value to query.\n     * @param {boolean} inherited Specify returning inherited property names.\n     * @returns {Array} Returns the array of property names.\n     */\n\n    function arrayLikeKeys(value, inherited) {\n      var isArr = isArray(value),\n          isArg = !isArr && isArguments(value),\n          isBuff = !isArr && !isArg && isBuffer(value),\n          isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n          skipIndexes = isArr || isArg || isBuff || isType,\n          result = skipIndexes ? baseTimes(value.length, String) : [],\n          length = result.length;\n\n      for (var key in value) {\n        if ((inherited || hasOwnProperty.call(value, key)) && !(skipIndexes && ( // Safari 9 has enumerable `arguments.length` in strict mode.\n        key == 'length' || // Node.js 0.10 has enumerable non-index properties on buffers.\n        isBuff && (key == 'offset' || key == 'parent') || // PhantomJS 2 has enumerable non-index properties on typed arrays.\n        isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset') || // Skip index properties.\n        isIndex(key, length)))) {\n          result.push(key);\n        }\n      }\n\n      return result;\n    }\n    /**\n     * A specialized version of `_.sample` for arrays.\n     *\n     * @private\n     * @param {Array} array The array to sample.\n     * @returns {*} Returns the random element.\n     */\n\n\n    function arraySample(array) {\n      var length = array.length;\n      return length ? array[baseRandom(0, length - 1)] : undefined;\n    }\n    /**\n     * A specialized version of `_.sampleSize` for arrays.\n     *\n     * @private\n     * @param {Array} array The array to sample.\n     * @param {number} n The number of elements to sample.\n     * @returns {Array} Returns the random elements.\n     */\n\n\n    function arraySampleSize(array, n) {\n      return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));\n    }\n    /**\n     * A specialized version of `_.shuffle` for arrays.\n     *\n     * @private\n     * @param {Array} array The array to shuffle.\n     * @returns {Array} Returns the new shuffled array.\n     */\n\n\n    function arrayShuffle(array) {\n      return shuffleSelf(copyArray(array));\n    }\n    /**\n     * This function is like `assignValue` except that it doesn't assign\n     * `undefined` values.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {string} key The key of the property to assign.\n     * @param {*} value The value to assign.\n     */\n\n\n    function assignMergeValue(object, key, value) {\n      if (value !== undefined && !eq(object[key], value) || value === undefined && !(key in object)) {\n        baseAssignValue(object, key, value);\n      }\n    }\n    /**\n     * Assigns `value` to `key` of `object` if the existing value is not equivalent\n     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {string} key The key of the property to assign.\n     * @param {*} value The value to assign.\n     */\n\n\n    function assignValue(object, key, value) {\n      var objValue = object[key];\n\n      if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || value === undefined && !(key in object)) {\n        baseAssignValue(object, key, value);\n      }\n    }\n    /**\n     * Gets the index at which the `key` is found in `array` of key-value pairs.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {*} key The key to search for.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     */\n\n\n    function assocIndexOf(array, key) {\n      var length = array.length;\n\n      while (length--) {\n        if (eq(array[length][0], key)) {\n          return length;\n        }\n      }\n\n      return -1;\n    }\n    /**\n     * Aggregates elements of `collection` on `accumulator` with keys transformed\n     * by `iteratee` and values set by `setter`.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} setter The function to set `accumulator` values.\n     * @param {Function} iteratee The iteratee to transform keys.\n     * @param {Object} accumulator The initial aggregated object.\n     * @returns {Function} Returns `accumulator`.\n     */\n\n\n    function baseAggregator(collection, setter, iteratee, accumulator) {\n      baseEach(collection, function (value, key, collection) {\n        setter(accumulator, value, iteratee(value), collection);\n      });\n      return accumulator;\n    }\n    /**\n     * The base implementation of `_.assign` without support for multiple sources\n     * or `customizer` functions.\n     *\n     * @private\n     * @param {Object} object The destination object.\n     * @param {Object} source The source object.\n     * @returns {Object} Returns `object`.\n     */\n\n\n    function baseAssign(object, source) {\n      return object && copyObject(source, keys(source), object);\n    }\n    /**\n     * The base implementation of `_.assignIn` without support for multiple sources\n     * or `customizer` functions.\n     *\n     * @private\n     * @param {Object} object The destination object.\n     * @param {Object} source The source object.\n     * @returns {Object} Returns `object`.\n     */\n\n\n    function baseAssignIn(object, source) {\n      return object && copyObject(source, keysIn(source), object);\n    }\n    /**\n     * The base implementation of `assignValue` and `assignMergeValue` without\n     * value checks.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {string} key The key of the property to assign.\n     * @param {*} value The value to assign.\n     */\n\n\n    function baseAssignValue(object, key, value) {\n      if (key == '__proto__' && defineProperty) {\n        defineProperty(object, key, {\n          'configurable': true,\n          'enumerable': true,\n          'value': value,\n          'writable': true\n        });\n      } else {\n        object[key] = value;\n      }\n    }\n    /**\n     * The base implementation of `_.at` without support for individual paths.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {string[]} paths The property paths to pick.\n     * @returns {Array} Returns the picked elements.\n     */\n\n\n    function baseAt(object, paths) {\n      var index = -1,\n          length = paths.length,\n          result = Array(length),\n          skip = object == null;\n\n      while (++index < length) {\n        result[index] = skip ? undefined : get(object, paths[index]);\n      }\n\n      return result;\n    }\n    /**\n     * The base implementation of `_.clamp` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {number} number The number to clamp.\n     * @param {number} [lower] The lower bound.\n     * @param {number} upper The upper bound.\n     * @returns {number} Returns the clamped number.\n     */\n\n\n    function baseClamp(number, lower, upper) {\n      if (number === number) {\n        if (upper !== undefined) {\n          number = number <= upper ? number : upper;\n        }\n\n        if (lower !== undefined) {\n          number = number >= lower ? number : lower;\n        }\n      }\n\n      return number;\n    }\n    /**\n     * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n     * traversed objects.\n     *\n     * @private\n     * @param {*} value The value to clone.\n     * @param {boolean} bitmask The bitmask flags.\n     *  1 - Deep clone\n     *  2 - Flatten inherited properties\n     *  4 - Clone symbols\n     * @param {Function} [customizer] The function to customize cloning.\n     * @param {string} [key] The key of `value`.\n     * @param {Object} [object] The parent object of `value`.\n     * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n     * @returns {*} Returns the cloned value.\n     */\n\n\n    function baseClone(value, bitmask, customizer, key, object, stack) {\n      var result,\n          isDeep = bitmask & CLONE_DEEP_FLAG,\n          isFlat = bitmask & CLONE_FLAT_FLAG,\n          isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n      if (customizer) {\n        result = object ? customizer(value, key, object, stack) : customizer(value);\n      }\n\n      if (result !== undefined) {\n        return result;\n      }\n\n      if (!isObject(value)) {\n        return value;\n      }\n\n      var isArr = isArray(value);\n\n      if (isArr) {\n        result = initCloneArray(value);\n\n        if (!isDeep) {\n          return copyArray(value, result);\n        }\n      } else {\n        var tag = getTag(value),\n            isFunc = tag == funcTag || tag == genTag;\n\n        if (isBuffer(value)) {\n          return cloneBuffer(value, isDeep);\n        }\n\n        if (tag == objectTag || tag == argsTag || isFunc && !object) {\n          result = isFlat || isFunc ? {} : initCloneObject(value);\n\n          if (!isDeep) {\n            return isFlat ? copySymbolsIn(value, baseAssignIn(result, value)) : copySymbols(value, baseAssign(result, value));\n          }\n        } else {\n          if (!cloneableTags[tag]) {\n            return object ? value : {};\n          }\n\n          result = initCloneByTag(value, tag, isDeep);\n        }\n      } // Check for circular references and return its corresponding clone.\n\n\n      stack || (stack = new Stack());\n      var stacked = stack.get(value);\n\n      if (stacked) {\n        return stacked;\n      }\n\n      stack.set(value, result);\n\n      if (isSet(value)) {\n        value.forEach(function (subValue) {\n          result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n        });\n      } else if (isMap(value)) {\n        value.forEach(function (subValue, key) {\n          result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n        });\n      }\n\n      var keysFunc = isFull ? isFlat ? getAllKeysIn : getAllKeys : isFlat ? keysIn : keys;\n      var props = isArr ? undefined : keysFunc(value);\n      arrayEach(props || value, function (subValue, key) {\n        if (props) {\n          key = subValue;\n          subValue = value[key];\n        } // Recursively populate clone (susceptible to call stack limits).\n\n\n        assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n      });\n      return result;\n    }\n    /**\n     * The base implementation of `_.conforms` which doesn't clone `source`.\n     *\n     * @private\n     * @param {Object} source The object of property predicates to conform to.\n     * @returns {Function} Returns the new spec function.\n     */\n\n\n    function baseConforms(source) {\n      var props = keys(source);\n      return function (object) {\n        return baseConformsTo(object, source, props);\n      };\n    }\n    /**\n     * The base implementation of `_.conformsTo` which accepts `props` to check.\n     *\n     * @private\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property predicates to conform to.\n     * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n     */\n\n\n    function baseConformsTo(object, source, props) {\n      var length = props.length;\n\n      if (object == null) {\n        return !length;\n      }\n\n      object = Object(object);\n\n      while (length--) {\n        var key = props[length],\n            predicate = source[key],\n            value = object[key];\n\n        if (value === undefined && !(key in object) || !predicate(value)) {\n          return false;\n        }\n      }\n\n      return true;\n    }\n    /**\n     * The base implementation of `_.delay` and `_.defer` which accepts `args`\n     * to provide to `func`.\n     *\n     * @private\n     * @param {Function} func The function to delay.\n     * @param {number} wait The number of milliseconds to delay invocation.\n     * @param {Array} args The arguments to provide to `func`.\n     * @returns {number|Object} Returns the timer id or timeout object.\n     */\n\n\n    function baseDelay(func, wait, args) {\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n\n      return setTimeout(function () {\n        func.apply(undefined, args);\n      }, wait);\n    }\n    /**\n     * The base implementation of methods like `_.difference` without support\n     * for excluding multiple arrays or iteratee shorthands.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {Array} values The values to exclude.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     */\n\n\n    function baseDifference(array, values, iteratee, comparator) {\n      var index = -1,\n          includes = arrayIncludes,\n          isCommon = true,\n          length = array.length,\n          result = [],\n          valuesLength = values.length;\n\n      if (!length) {\n        return result;\n      }\n\n      if (iteratee) {\n        values = arrayMap(values, baseUnary(iteratee));\n      }\n\n      if (comparator) {\n        includes = arrayIncludesWith;\n        isCommon = false;\n      } else if (values.length >= LARGE_ARRAY_SIZE) {\n        includes = cacheHas;\n        isCommon = false;\n        values = new SetCache(values);\n      }\n\n      outer: while (++index < length) {\n        var value = array[index],\n            computed = iteratee == null ? value : iteratee(value);\n        value = comparator || value !== 0 ? value : 0;\n\n        if (isCommon && computed === computed) {\n          var valuesIndex = valuesLength;\n\n          while (valuesIndex--) {\n            if (values[valuesIndex] === computed) {\n              continue outer;\n            }\n          }\n\n          result.push(value);\n        } else if (!includes(values, computed, comparator)) {\n          result.push(value);\n        }\n      }\n\n      return result;\n    }\n    /**\n     * The base implementation of `_.forEach` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Array|Object} Returns `collection`.\n     */\n\n\n    var baseEach = createBaseEach(baseForOwn);\n    /**\n     * The base implementation of `_.forEachRight` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Array|Object} Returns `collection`.\n     */\n\n    var baseEachRight = createBaseEach(baseForOwnRight, true);\n    /**\n     * The base implementation of `_.every` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} predicate The function invoked per iteration.\n     * @returns {boolean} Returns `true` if all elements pass the predicate check,\n     *  else `false`\n     */\n\n    function baseEvery(collection, predicate) {\n      var result = true;\n      baseEach(collection, function (value, index, collection) {\n        result = !!predicate(value, index, collection);\n        return result;\n      });\n      return result;\n    }\n    /**\n     * The base implementation of methods like `_.max` and `_.min` which accepts a\n     * `comparator` to determine the extremum value.\n     *\n     * @private\n     * @param {Array} array The array to iterate over.\n     * @param {Function} iteratee The iteratee invoked per iteration.\n     * @param {Function} comparator The comparator used to compare values.\n     * @returns {*} Returns the extremum value.\n     */\n\n\n    function baseExtremum(array, iteratee, comparator) {\n      var index = -1,\n          length = array.length;\n\n      while (++index < length) {\n        var value = array[index],\n            current = iteratee(value);\n\n        if (current != null && (computed === undefined ? current === current && !isSymbol(current) : comparator(current, computed))) {\n          var computed = current,\n              result = value;\n        }\n      }\n\n      return result;\n    }\n    /**\n     * The base implementation of `_.fill` without an iteratee call guard.\n     *\n     * @private\n     * @param {Array} array The array to fill.\n     * @param {*} value The value to fill `array` with.\n     * @param {number} [start=0] The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns `array`.\n     */\n\n\n    function baseFill(array, value, start, end) {\n      var length = array.length;\n      start = toInteger(start);\n\n      if (start < 0) {\n        start = -start > length ? 0 : length + start;\n      }\n\n      end = end === undefined || end > length ? length : toInteger(end);\n\n      if (end < 0) {\n        end += length;\n      }\n\n      end = start > end ? 0 : toLength(end);\n\n      while (start < end) {\n        array[start++] = value;\n      }\n\n      return array;\n    }\n    /**\n     * The base implementation of `_.filter` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} predicate The function invoked per iteration.\n     * @returns {Array} Returns the new filtered array.\n     */\n\n\n    function baseFilter(collection, predicate) {\n      var result = [];\n      baseEach(collection, function (value, index, collection) {\n        if (predicate(value, index, collection)) {\n          result.push(value);\n        }\n      });\n      return result;\n    }\n    /**\n     * The base implementation of `_.flatten` with support for restricting flattening.\n     *\n     * @private\n     * @param {Array} array The array to flatten.\n     * @param {number} depth The maximum recursion depth.\n     * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.\n     * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.\n     * @param {Array} [result=[]] The initial result value.\n     * @returns {Array} Returns the new flattened array.\n     */\n\n\n    function baseFlatten(array, depth, predicate, isStrict, result) {\n      var index = -1,\n          length = array.length;\n      predicate || (predicate = isFlattenable);\n      result || (result = []);\n\n      while (++index < length) {\n        var value = array[index];\n\n        if (depth > 0 && predicate(value)) {\n          if (depth > 1) {\n            // Recursively flatten arrays (susceptible to call stack limits).\n            baseFlatten(value, depth - 1, predicate, isStrict, result);\n          } else {\n            arrayPush(result, value);\n          }\n        } else if (!isStrict) {\n          result[result.length] = value;\n        }\n      }\n\n      return result;\n    }\n    /**\n     * The base implementation of `baseForOwn` which iterates over `object`\n     * properties returned by `keysFunc` and invokes `iteratee` for each property.\n     * Iteratee functions may exit iteration early by explicitly returning `false`.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @param {Function} keysFunc The function to get the keys of `object`.\n     * @returns {Object} Returns `object`.\n     */\n\n\n    var baseFor = createBaseFor();\n    /**\n     * This function is like `baseFor` except that it iterates over properties\n     * in the opposite order.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @param {Function} keysFunc The function to get the keys of `object`.\n     * @returns {Object} Returns `object`.\n     */\n\n    var baseForRight = createBaseFor(true);\n    /**\n     * The base implementation of `_.forOwn` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     */\n\n    function baseForOwn(object, iteratee) {\n      return object && baseFor(object, iteratee, keys);\n    }\n    /**\n     * The base implementation of `_.forOwnRight` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     */\n\n\n    function baseForOwnRight(object, iteratee) {\n      return object && baseForRight(object, iteratee, keys);\n    }\n    /**\n     * The base implementation of `_.functions` which creates an array of\n     * `object` function property names filtered from `props`.\n     *\n     * @private\n     * @param {Object} object The object to inspect.\n     * @param {Array} props The property names to filter.\n     * @returns {Array} Returns the function names.\n     */\n\n\n    function baseFunctions(object, props) {\n      return arrayFilter(props, function (key) {\n        return isFunction(object[key]);\n      });\n    }\n    /**\n     * The base implementation of `_.get` without support for default values.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the property to get.\n     * @returns {*} Returns the resolved value.\n     */\n\n\n    function baseGet(object, path) {\n      path = castPath(path, object);\n      var index = 0,\n          length = path.length;\n\n      while (object != null && index < length) {\n        object = object[toKey(path[index++])];\n      }\n\n      return index && index == length ? object : undefined;\n    }\n    /**\n     * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n     * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n     * symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Function} keysFunc The function to get the keys of `object`.\n     * @param {Function} symbolsFunc The function to get the symbols of `object`.\n     * @returns {Array} Returns the array of property names and symbols.\n     */\n\n\n    function baseGetAllKeys(object, keysFunc, symbolsFunc) {\n      var result = keysFunc(object);\n      return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n    }\n    /**\n     * The base implementation of `getTag` without fallbacks for buggy environments.\n     *\n     * @private\n     * @param {*} value The value to query.\n     * @returns {string} Returns the `toStringTag`.\n     */\n\n\n    function baseGetTag(value) {\n      if (value == null) {\n        return value === undefined ? undefinedTag : nullTag;\n      }\n\n      return symToStringTag && symToStringTag in Object(value) ? getRawTag(value) : objectToString(value);\n    }\n    /**\n     * The base implementation of `_.gt` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is greater than `other`,\n     *  else `false`.\n     */\n\n\n    function baseGt(value, other) {\n      return value > other;\n    }\n    /**\n     * The base implementation of `_.has` without support for deep paths.\n     *\n     * @private\n     * @param {Object} [object] The object to query.\n     * @param {Array|string} key The key to check.\n     * @returns {boolean} Returns `true` if `key` exists, else `false`.\n     */\n\n\n    function baseHas(object, key) {\n      return object != null && hasOwnProperty.call(object, key);\n    }\n    /**\n     * The base implementation of `_.hasIn` without support for deep paths.\n     *\n     * @private\n     * @param {Object} [object] The object to query.\n     * @param {Array|string} key The key to check.\n     * @returns {boolean} Returns `true` if `key` exists, else `false`.\n     */\n\n\n    function baseHasIn(object, key) {\n      return object != null && key in Object(object);\n    }\n    /**\n     * The base implementation of `_.inRange` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {number} number The number to check.\n     * @param {number} start The start of the range.\n     * @param {number} end The end of the range.\n     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n     */\n\n\n    function baseInRange(number, start, end) {\n      return number >= nativeMin(start, end) && number < nativeMax(start, end);\n    }\n    /**\n     * The base implementation of methods like `_.intersection`, without support\n     * for iteratee shorthands, that accepts an array of arrays to inspect.\n     *\n     * @private\n     * @param {Array} arrays The arrays to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of shared values.\n     */\n\n\n    function baseIntersection(arrays, iteratee, comparator) {\n      var includes = comparator ? arrayIncludesWith : arrayIncludes,\n          length = arrays[0].length,\n          othLength = arrays.length,\n          othIndex = othLength,\n          caches = Array(othLength),\n          maxLength = Infinity,\n          result = [];\n\n      while (othIndex--) {\n        var array = arrays[othIndex];\n\n        if (othIndex && iteratee) {\n          array = arrayMap(array, baseUnary(iteratee));\n        }\n\n        maxLength = nativeMin(array.length, maxLength);\n        caches[othIndex] = !comparator && (iteratee || length >= 120 && array.length >= 120) ? new SetCache(othIndex && array) : undefined;\n      }\n\n      array = arrays[0];\n      var index = -1,\n          seen = caches[0];\n\n      outer: while (++index < length && result.length < maxLength) {\n        var value = array[index],\n            computed = iteratee ? iteratee(value) : value;\n        value = comparator || value !== 0 ? value : 0;\n\n        if (!(seen ? cacheHas(seen, computed) : includes(result, computed, comparator))) {\n          othIndex = othLength;\n\n          while (--othIndex) {\n            var cache = caches[othIndex];\n\n            if (!(cache ? cacheHas(cache, computed) : includes(arrays[othIndex], computed, comparator))) {\n              continue outer;\n            }\n          }\n\n          if (seen) {\n            seen.push(computed);\n          }\n\n          result.push(value);\n        }\n      }\n\n      return result;\n    }\n    /**\n     * The base implementation of `_.invert` and `_.invertBy` which inverts\n     * `object` with values transformed by `iteratee` and set by `setter`.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} setter The function to set `accumulator` values.\n     * @param {Function} iteratee The iteratee to transform values.\n     * @param {Object} accumulator The initial inverted object.\n     * @returns {Function} Returns `accumulator`.\n     */\n\n\n    function baseInverter(object, setter, iteratee, accumulator) {\n      baseForOwn(object, function (value, key, object) {\n        setter(accumulator, iteratee(value), key, object);\n      });\n      return accumulator;\n    }\n    /**\n     * The base implementation of `_.invoke` without support for individual\n     * method arguments.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the method to invoke.\n     * @param {Array} args The arguments to invoke the method with.\n     * @returns {*} Returns the result of the invoked method.\n     */\n\n\n    function baseInvoke(object, path, args) {\n      path = castPath(path, object);\n      object = parent(object, path);\n      var func = object == null ? object : object[toKey(last(path))];\n      return func == null ? undefined : apply(func, object, args);\n    }\n    /**\n     * The base implementation of `_.isArguments`.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n     */\n\n\n    function baseIsArguments(value) {\n      return isObjectLike(value) && baseGetTag(value) == argsTag;\n    }\n    /**\n     * The base implementation of `_.isArrayBuffer` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n     */\n\n\n    function baseIsArrayBuffer(value) {\n      return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;\n    }\n    /**\n     * The base implementation of `_.isDate` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n     */\n\n\n    function baseIsDate(value) {\n      return isObjectLike(value) && baseGetTag(value) == dateTag;\n    }\n    /**\n     * The base implementation of `_.isEqual` which supports partial comparisons\n     * and tracks traversed objects.\n     *\n     * @private\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @param {boolean} bitmask The bitmask flags.\n     *  1 - Unordered comparison\n     *  2 - Partial comparison\n     * @param {Function} [customizer] The function to customize comparisons.\n     * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n     */\n\n\n    function baseIsEqual(value, other, bitmask, customizer, stack) {\n      if (value === other) {\n        return true;\n      }\n\n      if (value == null || other == null || !isObjectLike(value) && !isObjectLike(other)) {\n        return value !== value && other !== other;\n      }\n\n      return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n    }\n    /**\n     * A specialized version of `baseIsEqual` for arrays and objects which performs\n     * deep comparisons and tracks traversed objects enabling objects with circular\n     * references to be compared.\n     *\n     * @private\n     * @param {Object} object The object to compare.\n     * @param {Object} other The other object to compare.\n     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n     * @param {Function} customizer The function to customize comparisons.\n     * @param {Function} equalFunc The function to determine equivalents of values.\n     * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n     */\n\n\n    function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n      var objIsArr = isArray(object),\n          othIsArr = isArray(other),\n          objTag = objIsArr ? arrayTag : getTag(object),\n          othTag = othIsArr ? arrayTag : getTag(other);\n      objTag = objTag == argsTag ? objectTag : objTag;\n      othTag = othTag == argsTag ? objectTag : othTag;\n      var objIsObj = objTag == objectTag,\n          othIsObj = othTag == objectTag,\n          isSameTag = objTag == othTag;\n\n      if (isSameTag && isBuffer(object)) {\n        if (!isBuffer(other)) {\n          return false;\n        }\n\n        objIsArr = true;\n        objIsObj = false;\n      }\n\n      if (isSameTag && !objIsObj) {\n        stack || (stack = new Stack());\n        return objIsArr || isTypedArray(object) ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n      }\n\n      if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n        var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n            othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n        if (objIsWrapped || othIsWrapped) {\n          var objUnwrapped = objIsWrapped ? object.value() : object,\n              othUnwrapped = othIsWrapped ? other.value() : other;\n          stack || (stack = new Stack());\n          return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n        }\n      }\n\n      if (!isSameTag) {\n        return false;\n      }\n\n      stack || (stack = new Stack());\n      return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n    }\n    /**\n     * The base implementation of `_.isMap` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n     */\n\n\n    function baseIsMap(value) {\n      return isObjectLike(value) && getTag(value) == mapTag;\n    }\n    /**\n     * The base implementation of `_.isMatch` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property values to match.\n     * @param {Array} matchData The property names, values, and compare flags to match.\n     * @param {Function} [customizer] The function to customize comparisons.\n     * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n     */\n\n\n    function baseIsMatch(object, source, matchData, customizer) {\n      var index = matchData.length,\n          length = index,\n          noCustomizer = !customizer;\n\n      if (object == null) {\n        return !length;\n      }\n\n      object = Object(object);\n\n      while (index--) {\n        var data = matchData[index];\n\n        if (noCustomizer && data[2] ? data[1] !== object[data[0]] : !(data[0] in object)) {\n          return false;\n        }\n      }\n\n      while (++index < length) {\n        data = matchData[index];\n        var key = data[0],\n            objValue = object[key],\n            srcValue = data[1];\n\n        if (noCustomizer && data[2]) {\n          if (objValue === undefined && !(key in object)) {\n            return false;\n          }\n        } else {\n          var stack = new Stack();\n\n          if (customizer) {\n            var result = customizer(objValue, srcValue, key, object, source, stack);\n          }\n\n          if (!(result === undefined ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) : result)) {\n            return false;\n          }\n        }\n      }\n\n      return true;\n    }\n    /**\n     * The base implementation of `_.isNative` without bad shim checks.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a native function,\n     *  else `false`.\n     */\n\n\n    function baseIsNative(value) {\n      if (!isObject(value) || isMasked(value)) {\n        return false;\n      }\n\n      var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n      return pattern.test(toSource(value));\n    }\n    /**\n     * The base implementation of `_.isRegExp` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n     */\n\n\n    function baseIsRegExp(value) {\n      return isObjectLike(value) && baseGetTag(value) == regexpTag;\n    }\n    /**\n     * The base implementation of `_.isSet` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n     */\n\n\n    function baseIsSet(value) {\n      return isObjectLike(value) && getTag(value) == setTag;\n    }\n    /**\n     * The base implementation of `_.isTypedArray` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n     */\n\n\n    function baseIsTypedArray(value) {\n      return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n    }\n    /**\n     * The base implementation of `_.iteratee`.\n     *\n     * @private\n     * @param {*} [value=_.identity] The value to convert to an iteratee.\n     * @returns {Function} Returns the iteratee.\n     */\n\n\n    function baseIteratee(value) {\n      // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n      // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n      if (typeof value == 'function') {\n        return value;\n      }\n\n      if (value == null) {\n        return identity;\n      }\n\n      if (_typeof(value) == 'object') {\n        return isArray(value) ? baseMatchesProperty(value[0], value[1]) : baseMatches(value);\n      }\n\n      return property(value);\n    }\n    /**\n     * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     */\n\n\n    function baseKeys(object) {\n      if (!isPrototype(object)) {\n        return nativeKeys(object);\n      }\n\n      var result = [];\n\n      for (var key in Object(object)) {\n        if (hasOwnProperty.call(object, key) && key != 'constructor') {\n          result.push(key);\n        }\n      }\n\n      return result;\n    }\n    /**\n     * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     */\n\n\n    function baseKeysIn(object) {\n      if (!isObject(object)) {\n        return nativeKeysIn(object);\n      }\n\n      var isProto = isPrototype(object),\n          result = [];\n\n      for (var key in object) {\n        if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n          result.push(key);\n        }\n      }\n\n      return result;\n    }\n    /**\n     * The base implementation of `_.lt` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is less than `other`,\n     *  else `false`.\n     */\n\n\n    function baseLt(value, other) {\n      return value < other;\n    }\n    /**\n     * The base implementation of `_.map` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Array} Returns the new mapped array.\n     */\n\n\n    function baseMap(collection, iteratee) {\n      var index = -1,\n          result = isArrayLike(collection) ? Array(collection.length) : [];\n      baseEach(collection, function (value, key, collection) {\n        result[++index] = iteratee(value, key, collection);\n      });\n      return result;\n    }\n    /**\n     * The base implementation of `_.matches` which doesn't clone `source`.\n     *\n     * @private\n     * @param {Object} source The object of property values to match.\n     * @returns {Function} Returns the new spec function.\n     */\n\n\n    function baseMatches(source) {\n      var matchData = getMatchData(source);\n\n      if (matchData.length == 1 && matchData[0][2]) {\n        return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n      }\n\n      return function (object) {\n        return object === source || baseIsMatch(object, source, matchData);\n      };\n    }\n    /**\n     * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n     *\n     * @private\n     * @param {string} path The path of the property to get.\n     * @param {*} srcValue The value to match.\n     * @returns {Function} Returns the new spec function.\n     */\n\n\n    function baseMatchesProperty(path, srcValue) {\n      if (isKey(path) && isStrictComparable(srcValue)) {\n        return matchesStrictComparable(toKey(path), srcValue);\n      }\n\n      return function (object) {\n        var objValue = get(object, path);\n        return objValue === undefined && objValue === srcValue ? hasIn(object, path) : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);\n      };\n    }\n    /**\n     * The base implementation of `_.merge` without support for multiple sources.\n     *\n     * @private\n     * @param {Object} object The destination object.\n     * @param {Object} source The source object.\n     * @param {number} srcIndex The index of `source`.\n     * @param {Function} [customizer] The function to customize merged values.\n     * @param {Object} [stack] Tracks traversed source values and their merged\n     *  counterparts.\n     */\n\n\n    function baseMerge(object, source, srcIndex, customizer, stack) {\n      if (object === source) {\n        return;\n      }\n\n      baseFor(source, function (srcValue, key) {\n        stack || (stack = new Stack());\n\n        if (isObject(srcValue)) {\n          baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n        } else {\n          var newValue = customizer ? customizer(safeGet(object, key), srcValue, key + '', object, source, stack) : undefined;\n\n          if (newValue === undefined) {\n            newValue = srcValue;\n          }\n\n          assignMergeValue(object, key, newValue);\n        }\n      }, keysIn);\n    }\n    /**\n     * A specialized version of `baseMerge` for arrays and objects which performs\n     * deep merges and tracks traversed objects enabling objects with circular\n     * references to be merged.\n     *\n     * @private\n     * @param {Object} object The destination object.\n     * @param {Object} source The source object.\n     * @param {string} key The key of the value to merge.\n     * @param {number} srcIndex The index of `source`.\n     * @param {Function} mergeFunc The function to merge values.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @param {Object} [stack] Tracks traversed source values and their merged\n     *  counterparts.\n     */\n\n\n    function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n      var objValue = safeGet(object, key),\n          srcValue = safeGet(source, key),\n          stacked = stack.get(srcValue);\n\n      if (stacked) {\n        assignMergeValue(object, key, stacked);\n        return;\n      }\n\n      var newValue = customizer ? customizer(objValue, srcValue, key + '', object, source, stack) : undefined;\n      var isCommon = newValue === undefined;\n\n      if (isCommon) {\n        var isArr = isArray(srcValue),\n            isBuff = !isArr && isBuffer(srcValue),\n            isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n        newValue = srcValue;\n\n        if (isArr || isBuff || isTyped) {\n          if (isArray(objValue)) {\n            newValue = objValue;\n          } else if (isArrayLikeObject(objValue)) {\n            newValue = copyArray(objValue);\n          } else if (isBuff) {\n            isCommon = false;\n            newValue = cloneBuffer(srcValue, true);\n          } else if (isTyped) {\n            isCommon = false;\n            newValue = cloneTypedArray(srcValue, true);\n          } else {\n            newValue = [];\n          }\n        } else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n          newValue = objValue;\n\n          if (isArguments(objValue)) {\n            newValue = toPlainObject(objValue);\n          } else if (!isObject(objValue) || isFunction(objValue)) {\n            newValue = initCloneObject(srcValue);\n          }\n        } else {\n          isCommon = false;\n        }\n      }\n\n      if (isCommon) {\n        // Recursively merge objects and arrays (susceptible to call stack limits).\n        stack.set(srcValue, newValue);\n        mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n        stack['delete'](srcValue);\n      }\n\n      assignMergeValue(object, key, newValue);\n    }\n    /**\n     * The base implementation of `_.nth` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {Array} array The array to query.\n     * @param {number} n The index of the element to return.\n     * @returns {*} Returns the nth element of `array`.\n     */\n\n\n    function baseNth(array, n) {\n      var length = array.length;\n\n      if (!length) {\n        return;\n      }\n\n      n += n < 0 ? length : 0;\n      return isIndex(n, length) ? array[n] : undefined;\n    }\n    /**\n     * The base implementation of `_.orderBy` without param guards.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.\n     * @param {string[]} orders The sort orders of `iteratees`.\n     * @returns {Array} Returns the new sorted array.\n     */\n\n\n    function baseOrderBy(collection, iteratees, orders) {\n      if (iteratees.length) {\n        iteratees = arrayMap(iteratees, function (iteratee) {\n          if (isArray(iteratee)) {\n            return function (value) {\n              return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);\n            };\n          }\n\n          return iteratee;\n        });\n      } else {\n        iteratees = [identity];\n      }\n\n      var index = -1;\n      iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n      var result = baseMap(collection, function (value, key, collection) {\n        var criteria = arrayMap(iteratees, function (iteratee) {\n          return iteratee(value);\n        });\n        return {\n          'criteria': criteria,\n          'index': ++index,\n          'value': value\n        };\n      });\n      return baseSortBy(result, function (object, other) {\n        return compareMultiple(object, other, orders);\n      });\n    }\n    /**\n     * The base implementation of `_.pick` without support for individual\n     * property identifiers.\n     *\n     * @private\n     * @param {Object} object The source object.\n     * @param {string[]} paths The property paths to pick.\n     * @returns {Object} Returns the new object.\n     */\n\n\n    function basePick(object, paths) {\n      return basePickBy(object, paths, function (value, path) {\n        return hasIn(object, path);\n      });\n    }\n    /**\n     * The base implementation of  `_.pickBy` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Object} object The source object.\n     * @param {string[]} paths The property paths to pick.\n     * @param {Function} predicate The function invoked per property.\n     * @returns {Object} Returns the new object.\n     */\n\n\n    function basePickBy(object, paths, predicate) {\n      var index = -1,\n          length = paths.length,\n          result = {};\n\n      while (++index < length) {\n        var path = paths[index],\n            value = baseGet(object, path);\n\n        if (predicate(value, path)) {\n          baseSet(result, castPath(path, object), value);\n        }\n      }\n\n      return result;\n    }\n    /**\n     * A specialized version of `baseProperty` which supports deep paths.\n     *\n     * @private\n     * @param {Array|string} path The path of the property to get.\n     * @returns {Function} Returns the new accessor function.\n     */\n\n\n    function basePropertyDeep(path) {\n      return function (object) {\n        return baseGet(object, path);\n      };\n    }\n    /**\n     * The base implementation of `_.pullAllBy` without support for iteratee\n     * shorthands.\n     *\n     * @private\n     * @param {Array} array The array to modify.\n     * @param {Array} values The values to remove.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns `array`.\n     */\n\n\n    function basePullAll(array, values, iteratee, comparator) {\n      var indexOf = comparator ? baseIndexOfWith : baseIndexOf,\n          index = -1,\n          length = values.length,\n          seen = array;\n\n      if (array === values) {\n        values = copyArray(values);\n      }\n\n      if (iteratee) {\n        seen = arrayMap(array, baseUnary(iteratee));\n      }\n\n      while (++index < length) {\n        var fromIndex = 0,\n            value = values[index],\n            computed = iteratee ? iteratee(value) : value;\n\n        while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {\n          if (seen !== array) {\n            splice.call(seen, fromIndex, 1);\n          }\n\n          splice.call(array, fromIndex, 1);\n        }\n      }\n\n      return array;\n    }\n    /**\n     * The base implementation of `_.pullAt` without support for individual\n     * indexes or capturing the removed elements.\n     *\n     * @private\n     * @param {Array} array The array to modify.\n     * @param {number[]} indexes The indexes of elements to remove.\n     * @returns {Array} Returns `array`.\n     */\n\n\n    function basePullAt(array, indexes) {\n      var length = array ? indexes.length : 0,\n          lastIndex = length - 1;\n\n      while (length--) {\n        var index = indexes[length];\n\n        if (length == lastIndex || index !== previous) {\n          var previous = index;\n\n          if (isIndex(index)) {\n            splice.call(array, index, 1);\n          } else {\n            baseUnset(array, index);\n          }\n        }\n      }\n\n      return array;\n    }\n    /**\n     * The base implementation of `_.random` without support for returning\n     * floating-point numbers.\n     *\n     * @private\n     * @param {number} lower The lower bound.\n     * @param {number} upper The upper bound.\n     * @returns {number} Returns the random number.\n     */\n\n\n    function baseRandom(lower, upper) {\n      return lower + nativeFloor(nativeRandom() * (upper - lower + 1));\n    }\n    /**\n     * The base implementation of `_.range` and `_.rangeRight` which doesn't\n     * coerce arguments.\n     *\n     * @private\n     * @param {number} start The start of the range.\n     * @param {number} end The end of the range.\n     * @param {number} step The value to increment or decrement by.\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Array} Returns the range of numbers.\n     */\n\n\n    function baseRange(start, end, step, fromRight) {\n      var index = -1,\n          length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),\n          result = Array(length);\n\n      while (length--) {\n        result[fromRight ? length : ++index] = start;\n        start += step;\n      }\n\n      return result;\n    }\n    /**\n     * The base implementation of `_.repeat` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {string} string The string to repeat.\n     * @param {number} n The number of times to repeat the string.\n     * @returns {string} Returns the repeated string.\n     */\n\n\n    function baseRepeat(string, n) {\n      var result = '';\n\n      if (!string || n < 1 || n > MAX_SAFE_INTEGER) {\n        return result;\n      } // Leverage the exponentiation by squaring algorithm for a faster repeat.\n      // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.\n\n\n      do {\n        if (n % 2) {\n          result += string;\n        }\n\n        n = nativeFloor(n / 2);\n\n        if (n) {\n          string += string;\n        }\n      } while (n);\n\n      return result;\n    }\n    /**\n     * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n     *\n     * @private\n     * @param {Function} func The function to apply a rest parameter to.\n     * @param {number} [start=func.length-1] The start position of the rest parameter.\n     * @returns {Function} Returns the new function.\n     */\n\n\n    function baseRest(func, start) {\n      return setToString(overRest(func, start, identity), func + '');\n    }\n    /**\n     * The base implementation of `_.sample`.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to sample.\n     * @returns {*} Returns the random element.\n     */\n\n\n    function baseSample(collection) {\n      return arraySample(values(collection));\n    }\n    /**\n     * The base implementation of `_.sampleSize` without param guards.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to sample.\n     * @param {number} n The number of elements to sample.\n     * @returns {Array} Returns the random elements.\n     */\n\n\n    function baseSampleSize(collection, n) {\n      var array = values(collection);\n      return shuffleSelf(array, baseClamp(n, 0, array.length));\n    }\n    /**\n     * The base implementation of `_.set`.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {*} value The value to set.\n     * @param {Function} [customizer] The function to customize path creation.\n     * @returns {Object} Returns `object`.\n     */\n\n\n    function baseSet(object, path, value, customizer) {\n      if (!isObject(object)) {\n        return object;\n      }\n\n      path = castPath(path, object);\n      var index = -1,\n          length = path.length,\n          lastIndex = length - 1,\n          nested = object;\n\n      while (nested != null && ++index < length) {\n        var key = toKey(path[index]),\n            newValue = value;\n\n        if (key === '__proto__' || key === 'constructor' || key === 'prototype') {\n          return object;\n        }\n\n        if (index != lastIndex) {\n          var objValue = nested[key];\n          newValue = customizer ? customizer(objValue, key, nested) : undefined;\n\n          if (newValue === undefined) {\n            newValue = isObject(objValue) ? objValue : isIndex(path[index + 1]) ? [] : {};\n          }\n        }\n\n        assignValue(nested, key, newValue);\n        nested = nested[key];\n      }\n\n      return object;\n    }\n    /**\n     * The base implementation of `setData` without support for hot loop shorting.\n     *\n     * @private\n     * @param {Function} func The function to associate metadata with.\n     * @param {*} data The metadata.\n     * @returns {Function} Returns `func`.\n     */\n\n\n    var baseSetData = !metaMap ? identity : function (func, data) {\n      metaMap.set(func, data);\n      return func;\n    };\n    /**\n     * The base implementation of `setToString` without support for hot loop shorting.\n     *\n     * @private\n     * @param {Function} func The function to modify.\n     * @param {Function} string The `toString` result.\n     * @returns {Function} Returns `func`.\n     */\n\n    var baseSetToString = !defineProperty ? identity : function (func, string) {\n      return defineProperty(func, 'toString', {\n        'configurable': true,\n        'enumerable': false,\n        'value': constant(string),\n        'writable': true\n      });\n    };\n    /**\n     * The base implementation of `_.shuffle`.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to shuffle.\n     * @returns {Array} Returns the new shuffled array.\n     */\n\n    function baseShuffle(collection) {\n      return shuffleSelf(values(collection));\n    }\n    /**\n     * The base implementation of `_.slice` without an iteratee call guard.\n     *\n     * @private\n     * @param {Array} array The array to slice.\n     * @param {number} [start=0] The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns the slice of `array`.\n     */\n\n\n    function baseSlice(array, start, end) {\n      var index = -1,\n          length = array.length;\n\n      if (start < 0) {\n        start = -start > length ? 0 : length + start;\n      }\n\n      end = end > length ? length : end;\n\n      if (end < 0) {\n        end += length;\n      }\n\n      length = start > end ? 0 : end - start >>> 0;\n      start >>>= 0;\n      var result = Array(length);\n\n      while (++index < length) {\n        result[index] = array[index + start];\n      }\n\n      return result;\n    }\n    /**\n     * The base implementation of `_.some` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} predicate The function invoked per iteration.\n     * @returns {boolean} Returns `true` if any element passes the predicate check,\n     *  else `false`.\n     */\n\n\n    function baseSome(collection, predicate) {\n      var result;\n      baseEach(collection, function (value, index, collection) {\n        result = predicate(value, index, collection);\n        return !result;\n      });\n      return !!result;\n    }\n    /**\n     * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which\n     * performs a binary search of `array` to determine the index at which `value`\n     * should be inserted into `array` in order to maintain its sort order.\n     *\n     * @private\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @param {boolean} [retHighest] Specify returning the highest qualified index.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     */\n\n\n    function baseSortedIndex(array, value, retHighest) {\n      var low = 0,\n          high = array == null ? low : array.length;\n\n      if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {\n        while (low < high) {\n          var mid = low + high >>> 1,\n              computed = array[mid];\n\n          if (computed !== null && !isSymbol(computed) && (retHighest ? computed <= value : computed < value)) {\n            low = mid + 1;\n          } else {\n            high = mid;\n          }\n        }\n\n        return high;\n      }\n\n      return baseSortedIndexBy(array, value, identity, retHighest);\n    }\n    /**\n     * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`\n     * which invokes `iteratee` for `value` and each element of `array` to compute\n     * their sort ranking. The iteratee is invoked with one argument; (value).\n     *\n     * @private\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @param {Function} iteratee The iteratee invoked per element.\n     * @param {boolean} [retHighest] Specify returning the highest qualified index.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     */\n\n\n    function baseSortedIndexBy(array, value, iteratee, retHighest) {\n      var low = 0,\n          high = array == null ? 0 : array.length;\n\n      if (high === 0) {\n        return 0;\n      }\n\n      value = iteratee(value);\n      var valIsNaN = value !== value,\n          valIsNull = value === null,\n          valIsSymbol = isSymbol(value),\n          valIsUndefined = value === undefined;\n\n      while (low < high) {\n        var mid = nativeFloor((low + high) / 2),\n            computed = iteratee(array[mid]),\n            othIsDefined = computed !== undefined,\n            othIsNull = computed === null,\n            othIsReflexive = computed === computed,\n            othIsSymbol = isSymbol(computed);\n\n        if (valIsNaN) {\n          var setLow = retHighest || othIsReflexive;\n        } else if (valIsUndefined) {\n          setLow = othIsReflexive && (retHighest || othIsDefined);\n        } else if (valIsNull) {\n          setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);\n        } else if (valIsSymbol) {\n          setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);\n        } else if (othIsNull || othIsSymbol) {\n          setLow = false;\n        } else {\n          setLow = retHighest ? computed <= value : computed < value;\n        }\n\n        if (setLow) {\n          low = mid + 1;\n        } else {\n          high = mid;\n        }\n      }\n\n      return nativeMin(high, MAX_ARRAY_INDEX);\n    }\n    /**\n     * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without\n     * support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     */\n\n\n    function baseSortedUniq(array, iteratee) {\n      var index = -1,\n          length = array.length,\n          resIndex = 0,\n          result = [];\n\n      while (++index < length) {\n        var value = array[index],\n            computed = iteratee ? iteratee(value) : value;\n\n        if (!index || !eq(computed, seen)) {\n          var seen = computed;\n          result[resIndex++] = value === 0 ? 0 : value;\n        }\n      }\n\n      return result;\n    }\n    /**\n     * The base implementation of `_.toNumber` which doesn't ensure correct\n     * conversions of binary, hexadecimal, or octal string values.\n     *\n     * @private\n     * @param {*} value The value to process.\n     * @returns {number} Returns the number.\n     */\n\n\n    function baseToNumber(value) {\n      if (typeof value == 'number') {\n        return value;\n      }\n\n      if (isSymbol(value)) {\n        return NAN;\n      }\n\n      return +value;\n    }\n    /**\n     * The base implementation of `_.toString` which doesn't convert nullish\n     * values to empty strings.\n     *\n     * @private\n     * @param {*} value The value to process.\n     * @returns {string} Returns the string.\n     */\n\n\n    function baseToString(value) {\n      // Exit early for strings to avoid a performance hit in some environments.\n      if (typeof value == 'string') {\n        return value;\n      }\n\n      if (isArray(value)) {\n        // Recursively convert values (susceptible to call stack limits).\n        return arrayMap(value, baseToString) + '';\n      }\n\n      if (isSymbol(value)) {\n        return symbolToString ? symbolToString.call(value) : '';\n      }\n\n      var result = value + '';\n      return result == '0' && 1 / value == -INFINITY ? '-0' : result;\n    }\n    /**\n     * The base implementation of `_.uniqBy` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     */\n\n\n    function baseUniq(array, iteratee, comparator) {\n      var index = -1,\n          includes = arrayIncludes,\n          length = array.length,\n          isCommon = true,\n          result = [],\n          seen = result;\n\n      if (comparator) {\n        isCommon = false;\n        includes = arrayIncludesWith;\n      } else if (length >= LARGE_ARRAY_SIZE) {\n        var set = iteratee ? null : createSet(array);\n\n        if (set) {\n          return setToArray(set);\n        }\n\n        isCommon = false;\n        includes = cacheHas;\n        seen = new SetCache();\n      } else {\n        seen = iteratee ? [] : result;\n      }\n\n      outer: while (++index < length) {\n        var value = array[index],\n            computed = iteratee ? iteratee(value) : value;\n        value = comparator || value !== 0 ? value : 0;\n\n        if (isCommon && computed === computed) {\n          var seenIndex = seen.length;\n\n          while (seenIndex--) {\n            if (seen[seenIndex] === computed) {\n              continue outer;\n            }\n          }\n\n          if (iteratee) {\n            seen.push(computed);\n          }\n\n          result.push(value);\n        } else if (!includes(seen, computed, comparator)) {\n          if (seen !== result) {\n            seen.push(computed);\n          }\n\n          result.push(value);\n        }\n      }\n\n      return result;\n    }\n    /**\n     * The base implementation of `_.unset`.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The property path to unset.\n     * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n     */\n\n\n    function baseUnset(object, path) {\n      path = castPath(path, object);\n      object = parent(object, path);\n      return object == null || delete object[toKey(last(path))];\n    }\n    /**\n     * The base implementation of `_.update`.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to update.\n     * @param {Function} updater The function to produce the updated value.\n     * @param {Function} [customizer] The function to customize path creation.\n     * @returns {Object} Returns `object`.\n     */\n\n\n    function baseUpdate(object, path, updater, customizer) {\n      return baseSet(object, path, updater(baseGet(object, path)), customizer);\n    }\n    /**\n     * The base implementation of methods like `_.dropWhile` and `_.takeWhile`\n     * without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array} array The array to query.\n     * @param {Function} predicate The function invoked per iteration.\n     * @param {boolean} [isDrop] Specify dropping elements instead of taking them.\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Array} Returns the slice of `array`.\n     */\n\n\n    function baseWhile(array, predicate, isDrop, fromRight) {\n      var length = array.length,\n          index = fromRight ? length : -1;\n\n      while ((fromRight ? index-- : ++index < length) && predicate(array[index], index, array)) {}\n\n      return isDrop ? baseSlice(array, fromRight ? 0 : index, fromRight ? index + 1 : length) : baseSlice(array, fromRight ? index + 1 : 0, fromRight ? length : index);\n    }\n    /**\n     * The base implementation of `wrapperValue` which returns the result of\n     * performing a sequence of actions on the unwrapped `value`, where each\n     * successive action is supplied the return value of the previous.\n     *\n     * @private\n     * @param {*} value The unwrapped value.\n     * @param {Array} actions Actions to perform to resolve the unwrapped value.\n     * @returns {*} Returns the resolved value.\n     */\n\n\n    function baseWrapperValue(value, actions) {\n      var result = value;\n\n      if (result instanceof LazyWrapper) {\n        result = result.value();\n      }\n\n      return arrayReduce(actions, function (result, action) {\n        return action.func.apply(action.thisArg, arrayPush([result], action.args));\n      }, result);\n    }\n    /**\n     * The base implementation of methods like `_.xor`, without support for\n     * iteratee shorthands, that accepts an array of arrays to inspect.\n     *\n     * @private\n     * @param {Array} arrays The arrays to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of values.\n     */\n\n\n    function baseXor(arrays, iteratee, comparator) {\n      var length = arrays.length;\n\n      if (length < 2) {\n        return length ? baseUniq(arrays[0]) : [];\n      }\n\n      var index = -1,\n          result = Array(length);\n\n      while (++index < length) {\n        var array = arrays[index],\n            othIndex = -1;\n\n        while (++othIndex < length) {\n          if (othIndex != index) {\n            result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);\n          }\n        }\n      }\n\n      return baseUniq(baseFlatten(result, 1), iteratee, comparator);\n    }\n    /**\n     * This base implementation of `_.zipObject` which assigns values using `assignFunc`.\n     *\n     * @private\n     * @param {Array} props The property identifiers.\n     * @param {Array} values The property values.\n     * @param {Function} assignFunc The function to assign values.\n     * @returns {Object} Returns the new object.\n     */\n\n\n    function baseZipObject(props, values, assignFunc) {\n      var index = -1,\n          length = props.length,\n          valsLength = values.length,\n          result = {};\n\n      while (++index < length) {\n        var value = index < valsLength ? values[index] : undefined;\n        assignFunc(result, props[index], value);\n      }\n\n      return result;\n    }\n    /**\n     * Casts `value` to an empty array if it's not an array like object.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @returns {Array|Object} Returns the cast array-like object.\n     */\n\n\n    function castArrayLikeObject(value) {\n      return isArrayLikeObject(value) ? value : [];\n    }\n    /**\n     * Casts `value` to `identity` if it's not a function.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @returns {Function} Returns cast function.\n     */\n\n\n    function castFunction(value) {\n      return typeof value == 'function' ? value : identity;\n    }\n    /**\n     * Casts `value` to a path array if it's not one.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @param {Object} [object] The object to query keys on.\n     * @returns {Array} Returns the cast property path array.\n     */\n\n\n    function castPath(value, object) {\n      if (isArray(value)) {\n        return value;\n      }\n\n      return isKey(value, object) ? [value] : stringToPath(toString(value));\n    }\n    /**\n     * A `baseRest` alias which can be replaced with `identity` by module\n     * replacement plugins.\n     *\n     * @private\n     * @type {Function}\n     * @param {Function} func The function to apply a rest parameter to.\n     * @returns {Function} Returns the new function.\n     */\n\n\n    var castRest = baseRest;\n    /**\n     * Casts `array` to a slice if it's needed.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {number} start The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns the cast slice.\n     */\n\n    function castSlice(array, start, end) {\n      var length = array.length;\n      end = end === undefined ? length : end;\n      return !start && end >= length ? array : baseSlice(array, start, end);\n    }\n    /**\n     * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).\n     *\n     * @private\n     * @param {number|Object} id The timer id or timeout object of the timer to clear.\n     */\n\n\n    var clearTimeout = ctxClearTimeout || function (id) {\n      return root.clearTimeout(id);\n    };\n    /**\n     * Creates a clone of  `buffer`.\n     *\n     * @private\n     * @param {Buffer} buffer The buffer to clone.\n     * @param {boolean} [isDeep] Specify a deep clone.\n     * @returns {Buffer} Returns the cloned buffer.\n     */\n\n\n    function cloneBuffer(buffer, isDeep) {\n      if (isDeep) {\n        return buffer.slice();\n      }\n\n      var length = buffer.length,\n          result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n      buffer.copy(result);\n      return result;\n    }\n    /**\n     * Creates a clone of `arrayBuffer`.\n     *\n     * @private\n     * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n     * @returns {ArrayBuffer} Returns the cloned array buffer.\n     */\n\n\n    function cloneArrayBuffer(arrayBuffer) {\n      var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n      new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n      return result;\n    }\n    /**\n     * Creates a clone of `dataView`.\n     *\n     * @private\n     * @param {Object} dataView The data view to clone.\n     * @param {boolean} [isDeep] Specify a deep clone.\n     * @returns {Object} Returns the cloned data view.\n     */\n\n\n    function cloneDataView(dataView, isDeep) {\n      var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n      return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n    }\n    /**\n     * Creates a clone of `regexp`.\n     *\n     * @private\n     * @param {Object} regexp The regexp to clone.\n     * @returns {Object} Returns the cloned regexp.\n     */\n\n\n    function cloneRegExp(regexp) {\n      var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n      result.lastIndex = regexp.lastIndex;\n      return result;\n    }\n    /**\n     * Creates a clone of the `symbol` object.\n     *\n     * @private\n     * @param {Object} symbol The symbol object to clone.\n     * @returns {Object} Returns the cloned symbol object.\n     */\n\n\n    function cloneSymbol(symbol) {\n      return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n    }\n    /**\n     * Creates a clone of `typedArray`.\n     *\n     * @private\n     * @param {Object} typedArray The typed array to clone.\n     * @param {boolean} [isDeep] Specify a deep clone.\n     * @returns {Object} Returns the cloned typed array.\n     */\n\n\n    function cloneTypedArray(typedArray, isDeep) {\n      var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n      return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n    }\n    /**\n     * Compares values to sort them in ascending order.\n     *\n     * @private\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {number} Returns the sort order indicator for `value`.\n     */\n\n\n    function compareAscending(value, other) {\n      if (value !== other) {\n        var valIsDefined = value !== undefined,\n            valIsNull = value === null,\n            valIsReflexive = value === value,\n            valIsSymbol = isSymbol(value);\n        var othIsDefined = other !== undefined,\n            othIsNull = other === null,\n            othIsReflexive = other === other,\n            othIsSymbol = isSymbol(other);\n\n        if (!othIsNull && !othIsSymbol && !valIsSymbol && value > other || valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol || valIsNull && othIsDefined && othIsReflexive || !valIsDefined && othIsReflexive || !valIsReflexive) {\n          return 1;\n        }\n\n        if (!valIsNull && !valIsSymbol && !othIsSymbol && value < other || othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol || othIsNull && valIsDefined && valIsReflexive || !othIsDefined && valIsReflexive || !othIsReflexive) {\n          return -1;\n        }\n      }\n\n      return 0;\n    }\n    /**\n     * Used by `_.orderBy` to compare multiple properties of a value to another\n     * and stable sort them.\n     *\n     * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,\n     * specify an order of \"desc\" for descending or \"asc\" for ascending sort order\n     * of corresponding values.\n     *\n     * @private\n     * @param {Object} object The object to compare.\n     * @param {Object} other The other object to compare.\n     * @param {boolean[]|string[]} orders The order to sort by for each property.\n     * @returns {number} Returns the sort order indicator for `object`.\n     */\n\n\n    function compareMultiple(object, other, orders) {\n      var index = -1,\n          objCriteria = object.criteria,\n          othCriteria = other.criteria,\n          length = objCriteria.length,\n          ordersLength = orders.length;\n\n      while (++index < length) {\n        var result = compareAscending(objCriteria[index], othCriteria[index]);\n\n        if (result) {\n          if (index >= ordersLength) {\n            return result;\n          }\n\n          var order = orders[index];\n          return result * (order == 'desc' ? -1 : 1);\n        }\n      } // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications\n      // that causes it, under certain circumstances, to provide the same value for\n      // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247\n      // for more details.\n      //\n      // This also ensures a stable sort in V8 and other engines.\n      // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.\n\n\n      return object.index - other.index;\n    }\n    /**\n     * Creates an array that is the composition of partially applied arguments,\n     * placeholders, and provided arguments into a single array of arguments.\n     *\n     * @private\n     * @param {Array} args The provided arguments.\n     * @param {Array} partials The arguments to prepend to those provided.\n     * @param {Array} holders The `partials` placeholder indexes.\n     * @params {boolean} [isCurried] Specify composing for a curried function.\n     * @returns {Array} Returns the new array of composed arguments.\n     */\n\n\n    function composeArgs(args, partials, holders, isCurried) {\n      var argsIndex = -1,\n          argsLength = args.length,\n          holdersLength = holders.length,\n          leftIndex = -1,\n          leftLength = partials.length,\n          rangeLength = nativeMax(argsLength - holdersLength, 0),\n          result = Array(leftLength + rangeLength),\n          isUncurried = !isCurried;\n\n      while (++leftIndex < leftLength) {\n        result[leftIndex] = partials[leftIndex];\n      }\n\n      while (++argsIndex < holdersLength) {\n        if (isUncurried || argsIndex < argsLength) {\n          result[holders[argsIndex]] = args[argsIndex];\n        }\n      }\n\n      while (rangeLength--) {\n        result[leftIndex++] = args[argsIndex++];\n      }\n\n      return result;\n    }\n    /**\n     * This function is like `composeArgs` except that the arguments composition\n     * is tailored for `_.partialRight`.\n     *\n     * @private\n     * @param {Array} args The provided arguments.\n     * @param {Array} partials The arguments to append to those provided.\n     * @param {Array} holders The `partials` placeholder indexes.\n     * @params {boolean} [isCurried] Specify composing for a curried function.\n     * @returns {Array} Returns the new array of composed arguments.\n     */\n\n\n    function composeArgsRight(args, partials, holders, isCurried) {\n      var argsIndex = -1,\n          argsLength = args.length,\n          holdersIndex = -1,\n          holdersLength = holders.length,\n          rightIndex = -1,\n          rightLength = partials.length,\n          rangeLength = nativeMax(argsLength - holdersLength, 0),\n          result = Array(rangeLength + rightLength),\n          isUncurried = !isCurried;\n\n      while (++argsIndex < rangeLength) {\n        result[argsIndex] = args[argsIndex];\n      }\n\n      var offset = argsIndex;\n\n      while (++rightIndex < rightLength) {\n        result[offset + rightIndex] = partials[rightIndex];\n      }\n\n      while (++holdersIndex < holdersLength) {\n        if (isUncurried || argsIndex < argsLength) {\n          result[offset + holders[holdersIndex]] = args[argsIndex++];\n        }\n      }\n\n      return result;\n    }\n    /**\n     * Copies the values of `source` to `array`.\n     *\n     * @private\n     * @param {Array} source The array to copy values from.\n     * @param {Array} [array=[]] The array to copy values to.\n     * @returns {Array} Returns `array`.\n     */\n\n\n    function copyArray(source, array) {\n      var index = -1,\n          length = source.length;\n      array || (array = Array(length));\n\n      while (++index < length) {\n        array[index] = source[index];\n      }\n\n      return array;\n    }\n    /**\n     * Copies properties of `source` to `object`.\n     *\n     * @private\n     * @param {Object} source The object to copy properties from.\n     * @param {Array} props The property identifiers to copy.\n     * @param {Object} [object={}] The object to copy properties to.\n     * @param {Function} [customizer] The function to customize copied values.\n     * @returns {Object} Returns `object`.\n     */\n\n\n    function copyObject(source, props, object, customizer) {\n      var isNew = !object;\n      object || (object = {});\n      var index = -1,\n          length = props.length;\n\n      while (++index < length) {\n        var key = props[index];\n        var newValue = customizer ? customizer(object[key], source[key], key, object, source) : undefined;\n\n        if (newValue === undefined) {\n          newValue = source[key];\n        }\n\n        if (isNew) {\n          baseAssignValue(object, key, newValue);\n        } else {\n          assignValue(object, key, newValue);\n        }\n      }\n\n      return object;\n    }\n    /**\n     * Copies own symbols of `source` to `object`.\n     *\n     * @private\n     * @param {Object} source The object to copy symbols from.\n     * @param {Object} [object={}] The object to copy symbols to.\n     * @returns {Object} Returns `object`.\n     */\n\n\n    function copySymbols(source, object) {\n      return copyObject(source, getSymbols(source), object);\n    }\n    /**\n     * Copies own and inherited symbols of `source` to `object`.\n     *\n     * @private\n     * @param {Object} source The object to copy symbols from.\n     * @param {Object} [object={}] The object to copy symbols to.\n     * @returns {Object} Returns `object`.\n     */\n\n\n    function copySymbolsIn(source, object) {\n      return copyObject(source, getSymbolsIn(source), object);\n    }\n    /**\n     * Creates a function like `_.groupBy`.\n     *\n     * @private\n     * @param {Function} setter The function to set accumulator values.\n     * @param {Function} [initializer] The accumulator object initializer.\n     * @returns {Function} Returns the new aggregator function.\n     */\n\n\n    function createAggregator(setter, initializer) {\n      return function (collection, iteratee) {\n        var func = isArray(collection) ? arrayAggregator : baseAggregator,\n            accumulator = initializer ? initializer() : {};\n        return func(collection, setter, getIteratee(iteratee, 2), accumulator);\n      };\n    }\n    /**\n     * Creates a function like `_.assign`.\n     *\n     * @private\n     * @param {Function} assigner The function to assign values.\n     * @returns {Function} Returns the new assigner function.\n     */\n\n\n    function createAssigner(assigner) {\n      return baseRest(function (object, sources) {\n        var index = -1,\n            length = sources.length,\n            customizer = length > 1 ? sources[length - 1] : undefined,\n            guard = length > 2 ? sources[2] : undefined;\n        customizer = assigner.length > 3 && typeof customizer == 'function' ? (length--, customizer) : undefined;\n\n        if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n          customizer = length < 3 ? undefined : customizer;\n          length = 1;\n        }\n\n        object = Object(object);\n\n        while (++index < length) {\n          var source = sources[index];\n\n          if (source) {\n            assigner(object, source, index, customizer);\n          }\n        }\n\n        return object;\n      });\n    }\n    /**\n     * Creates a `baseEach` or `baseEachRight` function.\n     *\n     * @private\n     * @param {Function} eachFunc The function to iterate over a collection.\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Function} Returns the new base function.\n     */\n\n\n    function createBaseEach(eachFunc, fromRight) {\n      return function (collection, iteratee) {\n        if (collection == null) {\n          return collection;\n        }\n\n        if (!isArrayLike(collection)) {\n          return eachFunc(collection, iteratee);\n        }\n\n        var length = collection.length,\n            index = fromRight ? length : -1,\n            iterable = Object(collection);\n\n        while (fromRight ? index-- : ++index < length) {\n          if (iteratee(iterable[index], index, iterable) === false) {\n            break;\n          }\n        }\n\n        return collection;\n      };\n    }\n    /**\n     * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n     *\n     * @private\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Function} Returns the new base function.\n     */\n\n\n    function createBaseFor(fromRight) {\n      return function (object, iteratee, keysFunc) {\n        var index = -1,\n            iterable = Object(object),\n            props = keysFunc(object),\n            length = props.length;\n\n        while (length--) {\n          var key = props[fromRight ? length : ++index];\n\n          if (iteratee(iterable[key], key, iterable) === false) {\n            break;\n          }\n        }\n\n        return object;\n      };\n    }\n    /**\n     * Creates a function that wraps `func` to invoke it with the optional `this`\n     * binding of `thisArg`.\n     *\n     * @private\n     * @param {Function} func The function to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {*} [thisArg] The `this` binding of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n\n\n    function createBind(func, bitmask, thisArg) {\n      var isBind = bitmask & WRAP_BIND_FLAG,\n          Ctor = createCtor(func);\n\n      function wrapper() {\n        var fn = this && this !== root && this instanceof wrapper ? Ctor : func;\n        return fn.apply(isBind ? thisArg : this, arguments);\n      }\n\n      return wrapper;\n    }\n    /**\n     * Creates a function like `_.lowerFirst`.\n     *\n     * @private\n     * @param {string} methodName The name of the `String` case method to use.\n     * @returns {Function} Returns the new case function.\n     */\n\n\n    function createCaseFirst(methodName) {\n      return function (string) {\n        string = toString(string);\n        var strSymbols = hasUnicode(string) ? stringToArray(string) : undefined;\n        var chr = strSymbols ? strSymbols[0] : string.charAt(0);\n        var trailing = strSymbols ? castSlice(strSymbols, 1).join('') : string.slice(1);\n        return chr[methodName]() + trailing;\n      };\n    }\n    /**\n     * Creates a function like `_.camelCase`.\n     *\n     * @private\n     * @param {Function} callback The function to combine each word.\n     * @returns {Function} Returns the new compounder function.\n     */\n\n\n    function createCompounder(callback) {\n      return function (string) {\n        return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');\n      };\n    }\n    /**\n     * Creates a function that produces an instance of `Ctor` regardless of\n     * whether it was invoked as part of a `new` expression or by `call` or `apply`.\n     *\n     * @private\n     * @param {Function} Ctor The constructor to wrap.\n     * @returns {Function} Returns the new wrapped function.\n     */\n\n\n    function createCtor(Ctor) {\n      return function () {\n        // Use a `switch` statement to work with class constructors. See\n        // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist\n        // for more details.\n        var args = arguments;\n\n        switch (args.length) {\n          case 0:\n            return new Ctor();\n\n          case 1:\n            return new Ctor(args[0]);\n\n          case 2:\n            return new Ctor(args[0], args[1]);\n\n          case 3:\n            return new Ctor(args[0], args[1], args[2]);\n\n          case 4:\n            return new Ctor(args[0], args[1], args[2], args[3]);\n\n          case 5:\n            return new Ctor(args[0], args[1], args[2], args[3], args[4]);\n\n          case 6:\n            return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);\n\n          case 7:\n            return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);\n        }\n\n        var thisBinding = baseCreate(Ctor.prototype),\n            result = Ctor.apply(thisBinding, args); // Mimic the constructor's `return` behavior.\n        // See https://es5.github.io/#x13.2.2 for more details.\n\n        return isObject(result) ? result : thisBinding;\n      };\n    }\n    /**\n     * Creates a function that wraps `func` to enable currying.\n     *\n     * @private\n     * @param {Function} func The function to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {number} arity The arity of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n\n\n    function createCurry(func, bitmask, arity) {\n      var Ctor = createCtor(func);\n\n      function wrapper() {\n        var length = arguments.length,\n            args = Array(length),\n            index = length,\n            placeholder = getHolder(wrapper);\n\n        while (index--) {\n          args[index] = arguments[index];\n        }\n\n        var holders = length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder ? [] : replaceHolders(args, placeholder);\n        length -= holders.length;\n\n        if (length < arity) {\n          return createRecurry(func, bitmask, createHybrid, wrapper.placeholder, undefined, args, holders, undefined, undefined, arity - length);\n        }\n\n        var fn = this && this !== root && this instanceof wrapper ? Ctor : func;\n        return apply(fn, this, args);\n      }\n\n      return wrapper;\n    }\n    /**\n     * Creates a `_.find` or `_.findLast` function.\n     *\n     * @private\n     * @param {Function} findIndexFunc The function to find the collection index.\n     * @returns {Function} Returns the new find function.\n     */\n\n\n    function createFind(findIndexFunc) {\n      return function (collection, predicate, fromIndex) {\n        var iterable = Object(collection);\n\n        if (!isArrayLike(collection)) {\n          var iteratee = getIteratee(predicate, 3);\n          collection = keys(collection);\n\n          predicate = function predicate(key) {\n            return iteratee(iterable[key], key, iterable);\n          };\n        }\n\n        var index = findIndexFunc(collection, predicate, fromIndex);\n        return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;\n      };\n    }\n    /**\n     * Creates a `_.flow` or `_.flowRight` function.\n     *\n     * @private\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Function} Returns the new flow function.\n     */\n\n\n    function createFlow(fromRight) {\n      return flatRest(function (funcs) {\n        var length = funcs.length,\n            index = length,\n            prereq = LodashWrapper.prototype.thru;\n\n        if (fromRight) {\n          funcs.reverse();\n        }\n\n        while (index--) {\n          var func = funcs[index];\n\n          if (typeof func != 'function') {\n            throw new TypeError(FUNC_ERROR_TEXT);\n          }\n\n          if (prereq && !wrapper && getFuncName(func) == 'wrapper') {\n            var wrapper = new LodashWrapper([], true);\n          }\n        }\n\n        index = wrapper ? index : length;\n\n        while (++index < length) {\n          func = funcs[index];\n          var funcName = getFuncName(func),\n              data = funcName == 'wrapper' ? getData(func) : undefined;\n\n          if (data && isLaziable(data[0]) && data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) && !data[4].length && data[9] == 1) {\n            wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);\n          } else {\n            wrapper = func.length == 1 && isLaziable(func) ? wrapper[funcName]() : wrapper.thru(func);\n          }\n        }\n\n        return function () {\n          var args = arguments,\n              value = args[0];\n\n          if (wrapper && args.length == 1 && isArray(value)) {\n            return wrapper.plant(value).value();\n          }\n\n          var index = 0,\n              result = length ? funcs[index].apply(this, args) : value;\n\n          while (++index < length) {\n            result = funcs[index].call(this, result);\n          }\n\n          return result;\n        };\n      });\n    }\n    /**\n     * Creates a function that wraps `func` to invoke it with optional `this`\n     * binding of `thisArg`, partial application, and currying.\n     *\n     * @private\n     * @param {Function|string} func The function or method name to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {*} [thisArg] The `this` binding of `func`.\n     * @param {Array} [partials] The arguments to prepend to those provided to\n     *  the new function.\n     * @param {Array} [holders] The `partials` placeholder indexes.\n     * @param {Array} [partialsRight] The arguments to append to those provided\n     *  to the new function.\n     * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.\n     * @param {Array} [argPos] The argument positions of the new function.\n     * @param {number} [ary] The arity cap of `func`.\n     * @param {number} [arity] The arity of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n\n\n    function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {\n      var isAry = bitmask & WRAP_ARY_FLAG,\n          isBind = bitmask & WRAP_BIND_FLAG,\n          isBindKey = bitmask & WRAP_BIND_KEY_FLAG,\n          isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),\n          isFlip = bitmask & WRAP_FLIP_FLAG,\n          Ctor = isBindKey ? undefined : createCtor(func);\n\n      function wrapper() {\n        var length = arguments.length,\n            args = Array(length),\n            index = length;\n\n        while (index--) {\n          args[index] = arguments[index];\n        }\n\n        if (isCurried) {\n          var placeholder = getHolder(wrapper),\n              holdersCount = countHolders(args, placeholder);\n        }\n\n        if (partials) {\n          args = composeArgs(args, partials, holders, isCurried);\n        }\n\n        if (partialsRight) {\n          args = composeArgsRight(args, partialsRight, holdersRight, isCurried);\n        }\n\n        length -= holdersCount;\n\n        if (isCurried && length < arity) {\n          var newHolders = replaceHolders(args, placeholder);\n          return createRecurry(func, bitmask, createHybrid, wrapper.placeholder, thisArg, args, newHolders, argPos, ary, arity - length);\n        }\n\n        var thisBinding = isBind ? thisArg : this,\n            fn = isBindKey ? thisBinding[func] : func;\n        length = args.length;\n\n        if (argPos) {\n          args = reorder(args, argPos);\n        } else if (isFlip && length > 1) {\n          args.reverse();\n        }\n\n        if (isAry && ary < length) {\n          args.length = ary;\n        }\n\n        if (this && this !== root && this instanceof wrapper) {\n          fn = Ctor || createCtor(fn);\n        }\n\n        return fn.apply(thisBinding, args);\n      }\n\n      return wrapper;\n    }\n    /**\n     * Creates a function like `_.invertBy`.\n     *\n     * @private\n     * @param {Function} setter The function to set accumulator values.\n     * @param {Function} toIteratee The function to resolve iteratees.\n     * @returns {Function} Returns the new inverter function.\n     */\n\n\n    function createInverter(setter, toIteratee) {\n      return function (object, iteratee) {\n        return baseInverter(object, setter, toIteratee(iteratee), {});\n      };\n    }\n    /**\n     * Creates a function that performs a mathematical operation on two values.\n     *\n     * @private\n     * @param {Function} operator The function to perform the operation.\n     * @param {number} [defaultValue] The value used for `undefined` arguments.\n     * @returns {Function} Returns the new mathematical operation function.\n     */\n\n\n    function createMathOperation(operator, defaultValue) {\n      return function (value, other) {\n        var result;\n\n        if (value === undefined && other === undefined) {\n          return defaultValue;\n        }\n\n        if (value !== undefined) {\n          result = value;\n        }\n\n        if (other !== undefined) {\n          if (result === undefined) {\n            return other;\n          }\n\n          if (typeof value == 'string' || typeof other == 'string') {\n            value = baseToString(value);\n            other = baseToString(other);\n          } else {\n            value = baseToNumber(value);\n            other = baseToNumber(other);\n          }\n\n          result = operator(value, other);\n        }\n\n        return result;\n      };\n    }\n    /**\n     * Creates a function like `_.over`.\n     *\n     * @private\n     * @param {Function} arrayFunc The function to iterate over iteratees.\n     * @returns {Function} Returns the new over function.\n     */\n\n\n    function createOver(arrayFunc) {\n      return flatRest(function (iteratees) {\n        iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n        return baseRest(function (args) {\n          var thisArg = this;\n          return arrayFunc(iteratees, function (iteratee) {\n            return apply(iteratee, thisArg, args);\n          });\n        });\n      });\n    }\n    /**\n     * Creates the padding for `string` based on `length`. The `chars` string\n     * is truncated if the number of characters exceeds `length`.\n     *\n     * @private\n     * @param {number} length The padding length.\n     * @param {string} [chars=' '] The string used as padding.\n     * @returns {string} Returns the padding for `string`.\n     */\n\n\n    function createPadding(length, chars) {\n      chars = chars === undefined ? ' ' : baseToString(chars);\n      var charsLength = chars.length;\n\n      if (charsLength < 2) {\n        return charsLength ? baseRepeat(chars, length) : chars;\n      }\n\n      var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));\n      return hasUnicode(chars) ? castSlice(stringToArray(result), 0, length).join('') : result.slice(0, length);\n    }\n    /**\n     * Creates a function that wraps `func` to invoke it with the `this` binding\n     * of `thisArg` and `partials` prepended to the arguments it receives.\n     *\n     * @private\n     * @param {Function} func The function to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {*} thisArg The `this` binding of `func`.\n     * @param {Array} partials The arguments to prepend to those provided to\n     *  the new function.\n     * @returns {Function} Returns the new wrapped function.\n     */\n\n\n    function createPartial(func, bitmask, thisArg, partials) {\n      var isBind = bitmask & WRAP_BIND_FLAG,\n          Ctor = createCtor(func);\n\n      function wrapper() {\n        var argsIndex = -1,\n            argsLength = arguments.length,\n            leftIndex = -1,\n            leftLength = partials.length,\n            args = Array(leftLength + argsLength),\n            fn = this && this !== root && this instanceof wrapper ? Ctor : func;\n\n        while (++leftIndex < leftLength) {\n          args[leftIndex] = partials[leftIndex];\n        }\n\n        while (argsLength--) {\n          args[leftIndex++] = arguments[++argsIndex];\n        }\n\n        return apply(fn, isBind ? thisArg : this, args);\n      }\n\n      return wrapper;\n    }\n    /**\n     * Creates a `_.range` or `_.rangeRight` function.\n     *\n     * @private\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Function} Returns the new range function.\n     */\n\n\n    function createRange(fromRight) {\n      return function (start, end, step) {\n        if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {\n          end = step = undefined;\n        } // Ensure the sign of `-0` is preserved.\n\n\n        start = toFinite(start);\n\n        if (end === undefined) {\n          end = start;\n          start = 0;\n        } else {\n          end = toFinite(end);\n        }\n\n        step = step === undefined ? start < end ? 1 : -1 : toFinite(step);\n        return baseRange(start, end, step, fromRight);\n      };\n    }\n    /**\n     * Creates a function that performs a relational operation on two values.\n     *\n     * @private\n     * @param {Function} operator The function to perform the operation.\n     * @returns {Function} Returns the new relational operation function.\n     */\n\n\n    function createRelationalOperation(operator) {\n      return function (value, other) {\n        if (!(typeof value == 'string' && typeof other == 'string')) {\n          value = toNumber(value);\n          other = toNumber(other);\n        }\n\n        return operator(value, other);\n      };\n    }\n    /**\n     * Creates a function that wraps `func` to continue currying.\n     *\n     * @private\n     * @param {Function} func The function to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {Function} wrapFunc The function to create the `func` wrapper.\n     * @param {*} placeholder The placeholder value.\n     * @param {*} [thisArg] The `this` binding of `func`.\n     * @param {Array} [partials] The arguments to prepend to those provided to\n     *  the new function.\n     * @param {Array} [holders] The `partials` placeholder indexes.\n     * @param {Array} [argPos] The argument positions of the new function.\n     * @param {number} [ary] The arity cap of `func`.\n     * @param {number} [arity] The arity of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n\n\n    function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {\n      var isCurry = bitmask & WRAP_CURRY_FLAG,\n          newHolders = isCurry ? holders : undefined,\n          newHoldersRight = isCurry ? undefined : holders,\n          newPartials = isCurry ? partials : undefined,\n          newPartialsRight = isCurry ? undefined : partials;\n      bitmask |= isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG;\n      bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);\n\n      if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {\n        bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);\n      }\n\n      var newData = [func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, newHoldersRight, argPos, ary, arity];\n      var result = wrapFunc.apply(undefined, newData);\n\n      if (isLaziable(func)) {\n        setData(result, newData);\n      }\n\n      result.placeholder = placeholder;\n      return setWrapToString(result, func, bitmask);\n    }\n    /**\n     * Creates a function like `_.round`.\n     *\n     * @private\n     * @param {string} methodName The name of the `Math` method to use when rounding.\n     * @returns {Function} Returns the new round function.\n     */\n\n\n    function createRound(methodName) {\n      var func = Math[methodName];\n      return function (number, precision) {\n        number = toNumber(number);\n        precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);\n\n        if (precision && nativeIsFinite(number)) {\n          // Shift with exponential notation to avoid floating-point issues.\n          // See [MDN](https://mdn.io/round#Examples) for more details.\n          var pair = (toString(number) + 'e').split('e'),\n              value = func(pair[0] + 'e' + (+pair[1] + precision));\n          pair = (toString(value) + 'e').split('e');\n          return +(pair[0] + 'e' + (+pair[1] - precision));\n        }\n\n        return func(number);\n      };\n    }\n    /**\n     * Creates a set object of `values`.\n     *\n     * @private\n     * @param {Array} values The values to add to the set.\n     * @returns {Object} Returns the new set.\n     */\n\n\n    var createSet = !(Set && 1 / setToArray(new Set([, -0]))[1] == INFINITY) ? noop : function (values) {\n      return new Set(values);\n    };\n    /**\n     * Creates a `_.toPairs` or `_.toPairsIn` function.\n     *\n     * @private\n     * @param {Function} keysFunc The function to get the keys of a given object.\n     * @returns {Function} Returns the new pairs function.\n     */\n\n    function createToPairs(keysFunc) {\n      return function (object) {\n        var tag = getTag(object);\n\n        if (tag == mapTag) {\n          return mapToArray(object);\n        }\n\n        if (tag == setTag) {\n          return setToPairs(object);\n        }\n\n        return baseToPairs(object, keysFunc(object));\n      };\n    }\n    /**\n     * Creates a function that either curries or invokes `func` with optional\n     * `this` binding and partially applied arguments.\n     *\n     * @private\n     * @param {Function|string} func The function or method name to wrap.\n     * @param {number} bitmask The bitmask flags.\n     *    1 - `_.bind`\n     *    2 - `_.bindKey`\n     *    4 - `_.curry` or `_.curryRight` of a bound function\n     *    8 - `_.curry`\n     *   16 - `_.curryRight`\n     *   32 - `_.partial`\n     *   64 - `_.partialRight`\n     *  128 - `_.rearg`\n     *  256 - `_.ary`\n     *  512 - `_.flip`\n     * @param {*} [thisArg] The `this` binding of `func`.\n     * @param {Array} [partials] The arguments to be partially applied.\n     * @param {Array} [holders] The `partials` placeholder indexes.\n     * @param {Array} [argPos] The argument positions of the new function.\n     * @param {number} [ary] The arity cap of `func`.\n     * @param {number} [arity] The arity of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n\n\n    function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {\n      var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;\n\n      if (!isBindKey && typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n\n      var length = partials ? partials.length : 0;\n\n      if (!length) {\n        bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);\n        partials = holders = undefined;\n      }\n\n      ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);\n      arity = arity === undefined ? arity : toInteger(arity);\n      length -= holders ? holders.length : 0;\n\n      if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {\n        var partialsRight = partials,\n            holdersRight = holders;\n        partials = holders = undefined;\n      }\n\n      var data = isBindKey ? undefined : getData(func);\n      var newData = [func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity];\n\n      if (data) {\n        mergeData(newData, data);\n      }\n\n      func = newData[0];\n      bitmask = newData[1];\n      thisArg = newData[2];\n      partials = newData[3];\n      holders = newData[4];\n      arity = newData[9] = newData[9] === undefined ? isBindKey ? 0 : func.length : nativeMax(newData[9] - length, 0);\n\n      if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {\n        bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);\n      }\n\n      if (!bitmask || bitmask == WRAP_BIND_FLAG) {\n        var result = createBind(func, bitmask, thisArg);\n      } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {\n        result = createCurry(func, bitmask, arity);\n      } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {\n        result = createPartial(func, bitmask, thisArg, partials);\n      } else {\n        result = createHybrid.apply(undefined, newData);\n      }\n\n      var setter = data ? baseSetData : setData;\n      return setWrapToString(setter(result, newData), func, bitmask);\n    }\n    /**\n     * Used by `_.defaults` to customize its `_.assignIn` use to assign properties\n     * of source objects to the destination object for all destination properties\n     * that resolve to `undefined`.\n     *\n     * @private\n     * @param {*} objValue The destination value.\n     * @param {*} srcValue The source value.\n     * @param {string} key The key of the property to assign.\n     * @param {Object} object The parent object of `objValue`.\n     * @returns {*} Returns the value to assign.\n     */\n\n\n    function customDefaultsAssignIn(objValue, srcValue, key, object) {\n      if (objValue === undefined || eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key)) {\n        return srcValue;\n      }\n\n      return objValue;\n    }\n    /**\n     * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source\n     * objects into destination objects that are passed thru.\n     *\n     * @private\n     * @param {*} objValue The destination value.\n     * @param {*} srcValue The source value.\n     * @param {string} key The key of the property to merge.\n     * @param {Object} object The parent object of `objValue`.\n     * @param {Object} source The parent object of `srcValue`.\n     * @param {Object} [stack] Tracks traversed source values and their merged\n     *  counterparts.\n     * @returns {*} Returns the value to assign.\n     */\n\n\n    function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {\n      if (isObject(objValue) && isObject(srcValue)) {\n        // Recursively merge objects and arrays (susceptible to call stack limits).\n        stack.set(srcValue, objValue);\n        baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);\n        stack['delete'](srcValue);\n      }\n\n      return objValue;\n    }\n    /**\n     * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain\n     * objects.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @param {string} key The key of the property to inspect.\n     * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.\n     */\n\n\n    function customOmitClone(value) {\n      return isPlainObject(value) ? undefined : value;\n    }\n    /**\n     * A specialized version of `baseIsEqualDeep` for arrays with support for\n     * partial deep comparisons.\n     *\n     * @private\n     * @param {Array} array The array to compare.\n     * @param {Array} other The other array to compare.\n     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n     * @param {Function} customizer The function to customize comparisons.\n     * @param {Function} equalFunc The function to determine equivalents of values.\n     * @param {Object} stack Tracks traversed `array` and `other` objects.\n     * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n     */\n\n\n    function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n          arrLength = array.length,\n          othLength = other.length;\n\n      if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n        return false;\n      } // Check that cyclic values are equal.\n\n\n      var arrStacked = stack.get(array);\n      var othStacked = stack.get(other);\n\n      if (arrStacked && othStacked) {\n        return arrStacked == other && othStacked == array;\n      }\n\n      var index = -1,\n          result = true,\n          seen = bitmask & COMPARE_UNORDERED_FLAG ? new SetCache() : undefined;\n      stack.set(array, other);\n      stack.set(other, array); // Ignore non-index properties.\n\n      while (++index < arrLength) {\n        var arrValue = array[index],\n            othValue = other[index];\n\n        if (customizer) {\n          var compared = isPartial ? customizer(othValue, arrValue, index, other, array, stack) : customizer(arrValue, othValue, index, array, other, stack);\n        }\n\n        if (compared !== undefined) {\n          if (compared) {\n            continue;\n          }\n\n          result = false;\n          break;\n        } // Recursively compare arrays (susceptible to call stack limits).\n\n\n        if (seen) {\n          if (!arraySome(other, function (othValue, othIndex) {\n            if (!cacheHas(seen, othIndex) && (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n              return seen.push(othIndex);\n            }\n          })) {\n            result = false;\n            break;\n          }\n        } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n          result = false;\n          break;\n        }\n      }\n\n      stack['delete'](array);\n      stack['delete'](other);\n      return result;\n    }\n    /**\n     * A specialized version of `baseIsEqualDeep` for comparing objects of\n     * the same `toStringTag`.\n     *\n     * **Note:** This function only supports comparing values with tags of\n     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n     *\n     * @private\n     * @param {Object} object The object to compare.\n     * @param {Object} other The other object to compare.\n     * @param {string} tag The `toStringTag` of the objects to compare.\n     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n     * @param {Function} customizer The function to customize comparisons.\n     * @param {Function} equalFunc The function to determine equivalents of values.\n     * @param {Object} stack Tracks traversed `object` and `other` objects.\n     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n     */\n\n\n    function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n      switch (tag) {\n        case dataViewTag:\n          if (object.byteLength != other.byteLength || object.byteOffset != other.byteOffset) {\n            return false;\n          }\n\n          object = object.buffer;\n          other = other.buffer;\n\n        case arrayBufferTag:\n          if (object.byteLength != other.byteLength || !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n            return false;\n          }\n\n          return true;\n\n        case boolTag:\n        case dateTag:\n        case numberTag:\n          // Coerce booleans to `1` or `0` and dates to milliseconds.\n          // Invalid dates are coerced to `NaN`.\n          return eq(+object, +other);\n\n        case errorTag:\n          return object.name == other.name && object.message == other.message;\n\n        case regexpTag:\n        case stringTag:\n          // Coerce regexes to strings and treat strings, primitives and objects,\n          // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n          // for more details.\n          return object == other + '';\n\n        case mapTag:\n          var convert = mapToArray;\n\n        case setTag:\n          var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n          convert || (convert = setToArray);\n\n          if (object.size != other.size && !isPartial) {\n            return false;\n          } // Assume cyclic values are equal.\n\n\n          var stacked = stack.get(object);\n\n          if (stacked) {\n            return stacked == other;\n          }\n\n          bitmask |= COMPARE_UNORDERED_FLAG; // Recursively compare objects (susceptible to call stack limits).\n\n          stack.set(object, other);\n          var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n          stack['delete'](object);\n          return result;\n\n        case symbolTag:\n          if (symbolValueOf) {\n            return symbolValueOf.call(object) == symbolValueOf.call(other);\n          }\n\n      }\n\n      return false;\n    }\n    /**\n     * A specialized version of `baseIsEqualDeep` for objects with support for\n     * partial deep comparisons.\n     *\n     * @private\n     * @param {Object} object The object to compare.\n     * @param {Object} other The other object to compare.\n     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n     * @param {Function} customizer The function to customize comparisons.\n     * @param {Function} equalFunc The function to determine equivalents of values.\n     * @param {Object} stack Tracks traversed `object` and `other` objects.\n     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n     */\n\n\n    function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n          objProps = getAllKeys(object),\n          objLength = objProps.length,\n          othProps = getAllKeys(other),\n          othLength = othProps.length;\n\n      if (objLength != othLength && !isPartial) {\n        return false;\n      }\n\n      var index = objLength;\n\n      while (index--) {\n        var key = objProps[index];\n\n        if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n          return false;\n        }\n      } // Check that cyclic values are equal.\n\n\n      var objStacked = stack.get(object);\n      var othStacked = stack.get(other);\n\n      if (objStacked && othStacked) {\n        return objStacked == other && othStacked == object;\n      }\n\n      var result = true;\n      stack.set(object, other);\n      stack.set(other, object);\n      var skipCtor = isPartial;\n\n      while (++index < objLength) {\n        key = objProps[index];\n        var objValue = object[key],\n            othValue = other[key];\n\n        if (customizer) {\n          var compared = isPartial ? customizer(othValue, objValue, key, other, object, stack) : customizer(objValue, othValue, key, object, other, stack);\n        } // Recursively compare objects (susceptible to call stack limits).\n\n\n        if (!(compared === undefined ? objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack) : compared)) {\n          result = false;\n          break;\n        }\n\n        skipCtor || (skipCtor = key == 'constructor');\n      }\n\n      if (result && !skipCtor) {\n        var objCtor = object.constructor,\n            othCtor = other.constructor; // Non `Object` object instances with different constructors are not equal.\n\n        if (objCtor != othCtor && 'constructor' in object && 'constructor' in other && !(typeof objCtor == 'function' && objCtor instanceof objCtor && typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n          result = false;\n        }\n      }\n\n      stack['delete'](object);\n      stack['delete'](other);\n      return result;\n    }\n    /**\n     * A specialized version of `baseRest` which flattens the rest array.\n     *\n     * @private\n     * @param {Function} func The function to apply a rest parameter to.\n     * @returns {Function} Returns the new function.\n     */\n\n\n    function flatRest(func) {\n      return setToString(overRest(func, undefined, flatten), func + '');\n    }\n    /**\n     * Creates an array of own enumerable property names and symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names and symbols.\n     */\n\n\n    function getAllKeys(object) {\n      return baseGetAllKeys(object, keys, getSymbols);\n    }\n    /**\n     * Creates an array of own and inherited enumerable property names and\n     * symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names and symbols.\n     */\n\n\n    function getAllKeysIn(object) {\n      return baseGetAllKeys(object, keysIn, getSymbolsIn);\n    }\n    /**\n     * Gets metadata for `func`.\n     *\n     * @private\n     * @param {Function} func The function to query.\n     * @returns {*} Returns the metadata for `func`.\n     */\n\n\n    var getData = !metaMap ? noop : function (func) {\n      return metaMap.get(func);\n    };\n    /**\n     * Gets the name of `func`.\n     *\n     * @private\n     * @param {Function} func The function to query.\n     * @returns {string} Returns the function name.\n     */\n\n    function getFuncName(func) {\n      var result = func.name + '',\n          array = realNames[result],\n          length = hasOwnProperty.call(realNames, result) ? array.length : 0;\n\n      while (length--) {\n        var data = array[length],\n            otherFunc = data.func;\n\n        if (otherFunc == null || otherFunc == func) {\n          return data.name;\n        }\n      }\n\n      return result;\n    }\n    /**\n     * Gets the argument placeholder value for `func`.\n     *\n     * @private\n     * @param {Function} func The function to inspect.\n     * @returns {*} Returns the placeholder value.\n     */\n\n\n    function getHolder(func) {\n      var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;\n      return object.placeholder;\n    }\n    /**\n     * Gets the appropriate \"iteratee\" function. If `_.iteratee` is customized,\n     * this function returns the custom method, otherwise it returns `baseIteratee`.\n     * If arguments are provided, the chosen function is invoked with them and\n     * its result is returned.\n     *\n     * @private\n     * @param {*} [value] The value to convert to an iteratee.\n     * @param {number} [arity] The arity of the created iteratee.\n     * @returns {Function} Returns the chosen function or its result.\n     */\n\n\n    function getIteratee() {\n      var result = lodash.iteratee || iteratee;\n      result = result === iteratee ? baseIteratee : result;\n      return arguments.length ? result(arguments[0], arguments[1]) : result;\n    }\n    /**\n     * Gets the data for `map`.\n     *\n     * @private\n     * @param {Object} map The map to query.\n     * @param {string} key The reference key.\n     * @returns {*} Returns the map data.\n     */\n\n\n    function getMapData(map, key) {\n      var data = map.__data__;\n      return isKeyable(key) ? data[typeof key == 'string' ? 'string' : 'hash'] : data.map;\n    }\n    /**\n     * Gets the property names, values, and compare flags of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the match data of `object`.\n     */\n\n\n    function getMatchData(object) {\n      var result = keys(object),\n          length = result.length;\n\n      while (length--) {\n        var key = result[length],\n            value = object[key];\n        result[length] = [key, value, isStrictComparable(value)];\n      }\n\n      return result;\n    }\n    /**\n     * Gets the native function at `key` of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {string} key The key of the method to get.\n     * @returns {*} Returns the function if it's native, else `undefined`.\n     */\n\n\n    function getNative(object, key) {\n      var value = getValue(object, key);\n      return baseIsNative(value) ? value : undefined;\n    }\n    /**\n     * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n     *\n     * @private\n     * @param {*} value The value to query.\n     * @returns {string} Returns the raw `toStringTag`.\n     */\n\n\n    function getRawTag(value) {\n      var isOwn = hasOwnProperty.call(value, symToStringTag),\n          tag = value[symToStringTag];\n\n      try {\n        value[symToStringTag] = undefined;\n        var unmasked = true;\n      } catch (e) {}\n\n      var result = nativeObjectToString.call(value);\n\n      if (unmasked) {\n        if (isOwn) {\n          value[symToStringTag] = tag;\n        } else {\n          delete value[symToStringTag];\n        }\n      }\n\n      return result;\n    }\n    /**\n     * Creates an array of the own enumerable symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of symbols.\n     */\n\n\n    var getSymbols = !nativeGetSymbols ? stubArray : function (object) {\n      if (object == null) {\n        return [];\n      }\n\n      object = Object(object);\n      return arrayFilter(nativeGetSymbols(object), function (symbol) {\n        return propertyIsEnumerable.call(object, symbol);\n      });\n    };\n    /**\n     * Creates an array of the own and inherited enumerable symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of symbols.\n     */\n\n    var getSymbolsIn = !nativeGetSymbols ? stubArray : function (object) {\n      var result = [];\n\n      while (object) {\n        arrayPush(result, getSymbols(object));\n        object = getPrototype(object);\n      }\n\n      return result;\n    };\n    /**\n     * Gets the `toStringTag` of `value`.\n     *\n     * @private\n     * @param {*} value The value to query.\n     * @returns {string} Returns the `toStringTag`.\n     */\n\n    var getTag = baseGetTag; // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\n\n    if (DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag || Map && getTag(new Map()) != mapTag || Promise && getTag(Promise.resolve()) != promiseTag || Set && getTag(new Set()) != setTag || WeakMap && getTag(new WeakMap()) != weakMapTag) {\n      getTag = function getTag(value) {\n        var result = baseGetTag(value),\n            Ctor = result == objectTag ? value.constructor : undefined,\n            ctorString = Ctor ? toSource(Ctor) : '';\n\n        if (ctorString) {\n          switch (ctorString) {\n            case dataViewCtorString:\n              return dataViewTag;\n\n            case mapCtorString:\n              return mapTag;\n\n            case promiseCtorString:\n              return promiseTag;\n\n            case setCtorString:\n              return setTag;\n\n            case weakMapCtorString:\n              return weakMapTag;\n          }\n        }\n\n        return result;\n      };\n    }\n    /**\n     * Gets the view, applying any `transforms` to the `start` and `end` positions.\n     *\n     * @private\n     * @param {number} start The start of the view.\n     * @param {number} end The end of the view.\n     * @param {Array} transforms The transformations to apply to the view.\n     * @returns {Object} Returns an object containing the `start` and `end`\n     *  positions of the view.\n     */\n\n\n    function getView(start, end, transforms) {\n      var index = -1,\n          length = transforms.length;\n\n      while (++index < length) {\n        var data = transforms[index],\n            size = data.size;\n\n        switch (data.type) {\n          case 'drop':\n            start += size;\n            break;\n\n          case 'dropRight':\n            end -= size;\n            break;\n\n          case 'take':\n            end = nativeMin(end, start + size);\n            break;\n\n          case 'takeRight':\n            start = nativeMax(start, end - size);\n            break;\n        }\n      }\n\n      return {\n        'start': start,\n        'end': end\n      };\n    }\n    /**\n     * Extracts wrapper details from the `source` body comment.\n     *\n     * @private\n     * @param {string} source The source to inspect.\n     * @returns {Array} Returns the wrapper details.\n     */\n\n\n    function getWrapDetails(source) {\n      var match = source.match(reWrapDetails);\n      return match ? match[1].split(reSplitDetails) : [];\n    }\n    /**\n     * Checks if `path` exists on `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path to check.\n     * @param {Function} hasFunc The function to check properties.\n     * @returns {boolean} Returns `true` if `path` exists, else `false`.\n     */\n\n\n    function hasPath(object, path, hasFunc) {\n      path = castPath(path, object);\n      var index = -1,\n          length = path.length,\n          result = false;\n\n      while (++index < length) {\n        var key = toKey(path[index]);\n\n        if (!(result = object != null && hasFunc(object, key))) {\n          break;\n        }\n\n        object = object[key];\n      }\n\n      if (result || ++index != length) {\n        return result;\n      }\n\n      length = object == null ? 0 : object.length;\n      return !!length && isLength(length) && isIndex(key, length) && (isArray(object) || isArguments(object));\n    }\n    /**\n     * Initializes an array clone.\n     *\n     * @private\n     * @param {Array} array The array to clone.\n     * @returns {Array} Returns the initialized clone.\n     */\n\n\n    function initCloneArray(array) {\n      var length = array.length,\n          result = new array.constructor(length); // Add properties assigned by `RegExp#exec`.\n\n      if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n        result.index = array.index;\n        result.input = array.input;\n      }\n\n      return result;\n    }\n    /**\n     * Initializes an object clone.\n     *\n     * @private\n     * @param {Object} object The object to clone.\n     * @returns {Object} Returns the initialized clone.\n     */\n\n\n    function initCloneObject(object) {\n      return typeof object.constructor == 'function' && !isPrototype(object) ? baseCreate(getPrototype(object)) : {};\n    }\n    /**\n     * Initializes an object clone based on its `toStringTag`.\n     *\n     * **Note:** This function only supports cloning values with tags of\n     * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n     *\n     * @private\n     * @param {Object} object The object to clone.\n     * @param {string} tag The `toStringTag` of the object to clone.\n     * @param {boolean} [isDeep] Specify a deep clone.\n     * @returns {Object} Returns the initialized clone.\n     */\n\n\n    function initCloneByTag(object, tag, isDeep) {\n      var Ctor = object.constructor;\n\n      switch (tag) {\n        case arrayBufferTag:\n          return cloneArrayBuffer(object);\n\n        case boolTag:\n        case dateTag:\n          return new Ctor(+object);\n\n        case dataViewTag:\n          return cloneDataView(object, isDeep);\n\n        case float32Tag:\n        case float64Tag:\n        case int8Tag:\n        case int16Tag:\n        case int32Tag:\n        case uint8Tag:\n        case uint8ClampedTag:\n        case uint16Tag:\n        case uint32Tag:\n          return cloneTypedArray(object, isDeep);\n\n        case mapTag:\n          return new Ctor();\n\n        case numberTag:\n        case stringTag:\n          return new Ctor(object);\n\n        case regexpTag:\n          return cloneRegExp(object);\n\n        case setTag:\n          return new Ctor();\n\n        case symbolTag:\n          return cloneSymbol(object);\n      }\n    }\n    /**\n     * Inserts wrapper `details` in a comment at the top of the `source` body.\n     *\n     * @private\n     * @param {string} source The source to modify.\n     * @returns {Array} details The details to insert.\n     * @returns {string} Returns the modified source.\n     */\n\n\n    function insertWrapDetails(source, details) {\n      var length = details.length;\n\n      if (!length) {\n        return source;\n      }\n\n      var lastIndex = length - 1;\n      details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];\n      details = details.join(length > 2 ? ', ' : ' ');\n      return source.replace(reWrapComment, '{\\n/* [wrapped with ' + details + '] */\\n');\n    }\n    /**\n     * Checks if `value` is a flattenable `arguments` object or array.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.\n     */\n\n\n    function isFlattenable(value) {\n      return isArray(value) || isArguments(value) || !!(spreadableSymbol && value && value[spreadableSymbol]);\n    }\n    /**\n     * Checks if `value` is a valid array-like index.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n     * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n     */\n\n\n    function isIndex(value, length) {\n      var type = _typeof(value);\n\n      length = length == null ? MAX_SAFE_INTEGER : length;\n      return !!length && (type == 'number' || type != 'symbol' && reIsUint.test(value)) && value > -1 && value % 1 == 0 && value < length;\n    }\n    /**\n     * Checks if the given arguments are from an iteratee call.\n     *\n     * @private\n     * @param {*} value The potential iteratee value argument.\n     * @param {*} index The potential iteratee index or key argument.\n     * @param {*} object The potential iteratee object argument.\n     * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n     *  else `false`.\n     */\n\n\n    function isIterateeCall(value, index, object) {\n      if (!isObject(object)) {\n        return false;\n      }\n\n      var type = _typeof(index);\n\n      if (type == 'number' ? isArrayLike(object) && isIndex(index, object.length) : type == 'string' && index in object) {\n        return eq(object[index], value);\n      }\n\n      return false;\n    }\n    /**\n     * Checks if `value` is a property name and not a property path.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @param {Object} [object] The object to query keys on.\n     * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n     */\n\n\n    function isKey(value, object) {\n      if (isArray(value)) {\n        return false;\n      }\n\n      var type = _typeof(value);\n\n      if (type == 'number' || type == 'symbol' || type == 'boolean' || value == null || isSymbol(value)) {\n        return true;\n      }\n\n      return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || object != null && value in Object(object);\n    }\n    /**\n     * Checks if `value` is suitable for use as unique object key.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n     */\n\n\n    function isKeyable(value) {\n      var type = _typeof(value);\n\n      return type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean' ? value !== '__proto__' : value === null;\n    }\n    /**\n     * Checks if `func` has a lazy counterpart.\n     *\n     * @private\n     * @param {Function} func The function to check.\n     * @returns {boolean} Returns `true` if `func` has a lazy counterpart,\n     *  else `false`.\n     */\n\n\n    function isLaziable(func) {\n      var funcName = getFuncName(func),\n          other = lodash[funcName];\n\n      if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {\n        return false;\n      }\n\n      if (func === other) {\n        return true;\n      }\n\n      var data = getData(other);\n      return !!data && func === data[0];\n    }\n    /**\n     * Checks if `func` has its source masked.\n     *\n     * @private\n     * @param {Function} func The function to check.\n     * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n     */\n\n\n    function isMasked(func) {\n      return !!maskSrcKey && maskSrcKey in func;\n    }\n    /**\n     * Checks if `func` is capable of being masked.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `func` is maskable, else `false`.\n     */\n\n\n    var isMaskable = coreJsData ? isFunction : stubFalse;\n    /**\n     * Checks if `value` is likely a prototype object.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n     */\n\n    function isPrototype(value) {\n      var Ctor = value && value.constructor,\n          proto = typeof Ctor == 'function' && Ctor.prototype || objectProto;\n      return value === proto;\n    }\n    /**\n     * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` if suitable for strict\n     *  equality comparisons, else `false`.\n     */\n\n\n    function isStrictComparable(value) {\n      return value === value && !isObject(value);\n    }\n    /**\n     * A specialized version of `matchesProperty` for source values suitable\n     * for strict equality comparisons, i.e. `===`.\n     *\n     * @private\n     * @param {string} key The key of the property to get.\n     * @param {*} srcValue The value to match.\n     * @returns {Function} Returns the new spec function.\n     */\n\n\n    function matchesStrictComparable(key, srcValue) {\n      return function (object) {\n        if (object == null) {\n          return false;\n        }\n\n        return object[key] === srcValue && (srcValue !== undefined || key in Object(object));\n      };\n    }\n    /**\n     * A specialized version of `_.memoize` which clears the memoized function's\n     * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n     *\n     * @private\n     * @param {Function} func The function to have its output memoized.\n     * @returns {Function} Returns the new memoized function.\n     */\n\n\n    function memoizeCapped(func) {\n      var result = memoize(func, function (key) {\n        if (cache.size === MAX_MEMOIZE_SIZE) {\n          cache.clear();\n        }\n\n        return key;\n      });\n      var cache = result.cache;\n      return result;\n    }\n    /**\n     * Merges the function metadata of `source` into `data`.\n     *\n     * Merging metadata reduces the number of wrappers used to invoke a function.\n     * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`\n     * may be applied regardless of execution order. Methods like `_.ary` and\n     * `_.rearg` modify function arguments, making the order in which they are\n     * executed important, preventing the merging of metadata. However, we make\n     * an exception for a safe combined case where curried functions have `_.ary`\n     * and or `_.rearg` applied.\n     *\n     * @private\n     * @param {Array} data The destination metadata.\n     * @param {Array} source The source metadata.\n     * @returns {Array} Returns `data`.\n     */\n\n\n    function mergeData(data, source) {\n      var bitmask = data[1],\n          srcBitmask = source[1],\n          newBitmask = bitmask | srcBitmask,\n          isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);\n      var isCombo = srcBitmask == WRAP_ARY_FLAG && bitmask == WRAP_CURRY_FLAG || srcBitmask == WRAP_ARY_FLAG && bitmask == WRAP_REARG_FLAG && data[7].length <= source[8] || srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG) && source[7].length <= source[8] && bitmask == WRAP_CURRY_FLAG; // Exit early if metadata can't be merged.\n\n      if (!(isCommon || isCombo)) {\n        return data;\n      } // Use source `thisArg` if available.\n\n\n      if (srcBitmask & WRAP_BIND_FLAG) {\n        data[2] = source[2]; // Set when currying a bound function.\n\n        newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;\n      } // Compose partial arguments.\n\n\n      var value = source[3];\n\n      if (value) {\n        var partials = data[3];\n        data[3] = partials ? composeArgs(partials, value, source[4]) : value;\n        data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];\n      } // Compose partial right arguments.\n\n\n      value = source[5];\n\n      if (value) {\n        partials = data[5];\n        data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;\n        data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];\n      } // Use source `argPos` if available.\n\n\n      value = source[7];\n\n      if (value) {\n        data[7] = value;\n      } // Use source `ary` if it's smaller.\n\n\n      if (srcBitmask & WRAP_ARY_FLAG) {\n        data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);\n      } // Use source `arity` if one is not provided.\n\n\n      if (data[9] == null) {\n        data[9] = source[9];\n      } // Use source `func` and merge bitmasks.\n\n\n      data[0] = source[0];\n      data[1] = newBitmask;\n      return data;\n    }\n    /**\n     * This function is like\n     * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n     * except that it includes inherited enumerable properties.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     */\n\n\n    function nativeKeysIn(object) {\n      var result = [];\n\n      if (object != null) {\n        for (var key in Object(object)) {\n          result.push(key);\n        }\n      }\n\n      return result;\n    }\n    /**\n     * Converts `value` to a string using `Object.prototype.toString`.\n     *\n     * @private\n     * @param {*} value The value to convert.\n     * @returns {string} Returns the converted string.\n     */\n\n\n    function objectToString(value) {\n      return nativeObjectToString.call(value);\n    }\n    /**\n     * A specialized version of `baseRest` which transforms the rest array.\n     *\n     * @private\n     * @param {Function} func The function to apply a rest parameter to.\n     * @param {number} [start=func.length-1] The start position of the rest parameter.\n     * @param {Function} transform The rest array transform.\n     * @returns {Function} Returns the new function.\n     */\n\n\n    function overRest(func, start, transform) {\n      start = nativeMax(start === undefined ? func.length - 1 : start, 0);\n      return function () {\n        var args = arguments,\n            index = -1,\n            length = nativeMax(args.length - start, 0),\n            array = Array(length);\n\n        while (++index < length) {\n          array[index] = args[start + index];\n        }\n\n        index = -1;\n        var otherArgs = Array(start + 1);\n\n        while (++index < start) {\n          otherArgs[index] = args[index];\n        }\n\n        otherArgs[start] = transform(array);\n        return apply(func, this, otherArgs);\n      };\n    }\n    /**\n     * Gets the parent value at `path` of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Array} path The path to get the parent value of.\n     * @returns {*} Returns the parent value.\n     */\n\n\n    function parent(object, path) {\n      return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n    }\n    /**\n     * Reorder `array` according to the specified indexes where the element at\n     * the first index is assigned as the first element, the element at\n     * the second index is assigned as the second element, and so on.\n     *\n     * @private\n     * @param {Array} array The array to reorder.\n     * @param {Array} indexes The arranged array indexes.\n     * @returns {Array} Returns `array`.\n     */\n\n\n    function reorder(array, indexes) {\n      var arrLength = array.length,\n          length = nativeMin(indexes.length, arrLength),\n          oldArray = copyArray(array);\n\n      while (length--) {\n        var index = indexes[length];\n        array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;\n      }\n\n      return array;\n    }\n    /**\n     * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {string} key The key of the property to get.\n     * @returns {*} Returns the property value.\n     */\n\n\n    function safeGet(object, key) {\n      if (key === 'constructor' && typeof object[key] === 'function') {\n        return;\n      }\n\n      if (key == '__proto__') {\n        return;\n      }\n\n      return object[key];\n    }\n    /**\n     * Sets metadata for `func`.\n     *\n     * **Note:** If this function becomes hot, i.e. is invoked a lot in a short\n     * period of time, it will trip its breaker and transition to an identity\n     * function to avoid garbage collection pauses in V8. See\n     * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)\n     * for more details.\n     *\n     * @private\n     * @param {Function} func The function to associate metadata with.\n     * @param {*} data The metadata.\n     * @returns {Function} Returns `func`.\n     */\n\n\n    var setData = shortOut(baseSetData);\n    /**\n     * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).\n     *\n     * @private\n     * @param {Function} func The function to delay.\n     * @param {number} wait The number of milliseconds to delay invocation.\n     * @returns {number|Object} Returns the timer id or timeout object.\n     */\n\n    var setTimeout = ctxSetTimeout || function (func, wait) {\n      return root.setTimeout(func, wait);\n    };\n    /**\n     * Sets the `toString` method of `func` to return `string`.\n     *\n     * @private\n     * @param {Function} func The function to modify.\n     * @param {Function} string The `toString` result.\n     * @returns {Function} Returns `func`.\n     */\n\n\n    var setToString = shortOut(baseSetToString);\n    /**\n     * Sets the `toString` method of `wrapper` to mimic the source of `reference`\n     * with wrapper details in a comment at the top of the source body.\n     *\n     * @private\n     * @param {Function} wrapper The function to modify.\n     * @param {Function} reference The reference function.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @returns {Function} Returns `wrapper`.\n     */\n\n    function setWrapToString(wrapper, reference, bitmask) {\n      var source = reference + '';\n      return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));\n    }\n    /**\n     * Creates a function that'll short out and invoke `identity` instead\n     * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n     * milliseconds.\n     *\n     * @private\n     * @param {Function} func The function to restrict.\n     * @returns {Function} Returns the new shortable function.\n     */\n\n\n    function shortOut(func) {\n      var count = 0,\n          lastCalled = 0;\n      return function () {\n        var stamp = nativeNow(),\n            remaining = HOT_SPAN - (stamp - lastCalled);\n        lastCalled = stamp;\n\n        if (remaining > 0) {\n          if (++count >= HOT_COUNT) {\n            return arguments[0];\n          }\n        } else {\n          count = 0;\n        }\n\n        return func.apply(undefined, arguments);\n      };\n    }\n    /**\n     * A specialized version of `_.shuffle` which mutates and sets the size of `array`.\n     *\n     * @private\n     * @param {Array} array The array to shuffle.\n     * @param {number} [size=array.length] The size of `array`.\n     * @returns {Array} Returns `array`.\n     */\n\n\n    function shuffleSelf(array, size) {\n      var index = -1,\n          length = array.length,\n          lastIndex = length - 1;\n      size = size === undefined ? length : size;\n\n      while (++index < size) {\n        var rand = baseRandom(index, lastIndex),\n            value = array[rand];\n        array[rand] = array[index];\n        array[index] = value;\n      }\n\n      array.length = size;\n      return array;\n    }\n    /**\n     * Converts `string` to a property path array.\n     *\n     * @private\n     * @param {string} string The string to convert.\n     * @returns {Array} Returns the property path array.\n     */\n\n\n    var stringToPath = memoizeCapped(function (string) {\n      var result = [];\n\n      if (string.charCodeAt(0) === 46\n      /* . */\n      ) {\n          result.push('');\n        }\n\n      string.replace(rePropName, function (match, number, quote, subString) {\n        result.push(quote ? subString.replace(reEscapeChar, '$1') : number || match);\n      });\n      return result;\n    });\n    /**\n     * Converts `value` to a string key if it's not a string or symbol.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @returns {string|symbol} Returns the key.\n     */\n\n    function toKey(value) {\n      if (typeof value == 'string' || isSymbol(value)) {\n        return value;\n      }\n\n      var result = value + '';\n      return result == '0' && 1 / value == -INFINITY ? '-0' : result;\n    }\n    /**\n     * Converts `func` to its source code.\n     *\n     * @private\n     * @param {Function} func The function to convert.\n     * @returns {string} Returns the source code.\n     */\n\n\n    function toSource(func) {\n      if (func != null) {\n        try {\n          return funcToString.call(func);\n        } catch (e) {}\n\n        try {\n          return func + '';\n        } catch (e) {}\n      }\n\n      return '';\n    }\n    /**\n     * Updates wrapper `details` based on `bitmask` flags.\n     *\n     * @private\n     * @returns {Array} details The details to modify.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @returns {Array} Returns `details`.\n     */\n\n\n    function updateWrapDetails(details, bitmask) {\n      arrayEach(wrapFlags, function (pair) {\n        var value = '_.' + pair[0];\n\n        if (bitmask & pair[1] && !arrayIncludes(details, value)) {\n          details.push(value);\n        }\n      });\n      return details.sort();\n    }\n    /**\n     * Creates a clone of `wrapper`.\n     *\n     * @private\n     * @param {Object} wrapper The wrapper to clone.\n     * @returns {Object} Returns the cloned wrapper.\n     */\n\n\n    function wrapperClone(wrapper) {\n      if (wrapper instanceof LazyWrapper) {\n        return wrapper.clone();\n      }\n\n      var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);\n      result.__actions__ = copyArray(wrapper.__actions__);\n      result.__index__ = wrapper.__index__;\n      result.__values__ = wrapper.__values__;\n      return result;\n    }\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates an array of elements split into groups the length of `size`.\n     * If `array` can't be split evenly, the final chunk will be the remaining\n     * elements.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to process.\n     * @param {number} [size=1] The length of each chunk\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the new array of chunks.\n     * @example\n     *\n     * _.chunk(['a', 'b', 'c', 'd'], 2);\n     * // => [['a', 'b'], ['c', 'd']]\n     *\n     * _.chunk(['a', 'b', 'c', 'd'], 3);\n     * // => [['a', 'b', 'c'], ['d']]\n     */\n\n\n    function chunk(array, size, guard) {\n      if (guard ? isIterateeCall(array, size, guard) : size === undefined) {\n        size = 1;\n      } else {\n        size = nativeMax(toInteger(size), 0);\n      }\n\n      var length = array == null ? 0 : array.length;\n\n      if (!length || size < 1) {\n        return [];\n      }\n\n      var index = 0,\n          resIndex = 0,\n          result = Array(nativeCeil(length / size));\n\n      while (index < length) {\n        result[resIndex++] = baseSlice(array, index, index += size);\n      }\n\n      return result;\n    }\n    /**\n     * Creates an array with all falsey values removed. The values `false`, `null`,\n     * `0`, `\"\"`, `undefined`, and `NaN` are falsey.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to compact.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * _.compact([0, 1, false, 2, '', 3]);\n     * // => [1, 2, 3]\n     */\n\n\n    function compact(array) {\n      var index = -1,\n          length = array == null ? 0 : array.length,\n          resIndex = 0,\n          result = [];\n\n      while (++index < length) {\n        var value = array[index];\n\n        if (value) {\n          result[resIndex++] = value;\n        }\n      }\n\n      return result;\n    }\n    /**\n     * Creates a new array concatenating `array` with any additional arrays\n     * and/or values.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to concatenate.\n     * @param {...*} [values] The values to concatenate.\n     * @returns {Array} Returns the new concatenated array.\n     * @example\n     *\n     * var array = [1];\n     * var other = _.concat(array, 2, [3], [[4]]);\n     *\n     * console.log(other);\n     * // => [1, 2, 3, [4]]\n     *\n     * console.log(array);\n     * // => [1]\n     */\n\n\n    function concat() {\n      var length = arguments.length;\n\n      if (!length) {\n        return [];\n      }\n\n      var args = Array(length - 1),\n          array = arguments[0],\n          index = length;\n\n      while (index--) {\n        args[index - 1] = arguments[index];\n      }\n\n      return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));\n    }\n    /**\n     * Creates an array of `array` values not included in the other given arrays\n     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons. The order and references of result values are\n     * determined by the first array.\n     *\n     * **Note:** Unlike `_.pullAll`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {...Array} [values] The values to exclude.\n     * @returns {Array} Returns the new array of filtered values.\n     * @see _.without, _.xor\n     * @example\n     *\n     * _.difference([2, 1], [2, 3]);\n     * // => [1]\n     */\n\n\n    var difference = baseRest(function (array, values) {\n      return isArrayLikeObject(array) ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) : [];\n    });\n    /**\n     * This method is like `_.difference` except that it accepts `iteratee` which\n     * is invoked for each element of `array` and `values` to generate the criterion\n     * by which they're compared. The order and references of result values are\n     * determined by the first array. The iteratee is invoked with one argument:\n     * (value).\n     *\n     * **Note:** Unlike `_.pullAllBy`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {...Array} [values] The values to exclude.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n     * // => [1.2]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');\n     * // => [{ 'x': 2 }]\n     */\n\n    var differenceBy = baseRest(function (array, values) {\n      var iteratee = last(values);\n\n      if (isArrayLikeObject(iteratee)) {\n        iteratee = undefined;\n      }\n\n      return isArrayLikeObject(array) ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)) : [];\n    });\n    /**\n     * This method is like `_.difference` except that it accepts `comparator`\n     * which is invoked to compare elements of `array` to `values`. The order and\n     * references of result values are determined by the first array. The comparator\n     * is invoked with two arguments: (arrVal, othVal).\n     *\n     * **Note:** Unlike `_.pullAllWith`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {...Array} [values] The values to exclude.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n     *\n     * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);\n     * // => [{ 'x': 2, 'y': 1 }]\n     */\n\n    var differenceWith = baseRest(function (array, values) {\n      var comparator = last(values);\n\n      if (isArrayLikeObject(comparator)) {\n        comparator = undefined;\n      }\n\n      return isArrayLikeObject(array) ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator) : [];\n    });\n    /**\n     * Creates a slice of `array` with `n` elements dropped from the beginning.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.5.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=1] The number of elements to drop.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.drop([1, 2, 3]);\n     * // => [2, 3]\n     *\n     * _.drop([1, 2, 3], 2);\n     * // => [3]\n     *\n     * _.drop([1, 2, 3], 5);\n     * // => []\n     *\n     * _.drop([1, 2, 3], 0);\n     * // => [1, 2, 3]\n     */\n\n    function drop(array, n, guard) {\n      var length = array == null ? 0 : array.length;\n\n      if (!length) {\n        return [];\n      }\n\n      n = guard || n === undefined ? 1 : toInteger(n);\n      return baseSlice(array, n < 0 ? 0 : n, length);\n    }\n    /**\n     * Creates a slice of `array` with `n` elements dropped from the end.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=1] The number of elements to drop.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.dropRight([1, 2, 3]);\n     * // => [1, 2]\n     *\n     * _.dropRight([1, 2, 3], 2);\n     * // => [1]\n     *\n     * _.dropRight([1, 2, 3], 5);\n     * // => []\n     *\n     * _.dropRight([1, 2, 3], 0);\n     * // => [1, 2, 3]\n     */\n\n\n    function dropRight(array, n, guard) {\n      var length = array == null ? 0 : array.length;\n\n      if (!length) {\n        return [];\n      }\n\n      n = guard || n === undefined ? 1 : toInteger(n);\n      n = length - n;\n      return baseSlice(array, 0, n < 0 ? 0 : n);\n    }\n    /**\n     * Creates a slice of `array` excluding elements dropped from the end.\n     * Elements are dropped until `predicate` returns falsey. The predicate is\n     * invoked with three arguments: (value, index, array).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': true },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': false }\n     * ];\n     *\n     * _.dropRightWhile(users, function(o) { return !o.active; });\n     * // => objects for ['barney']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });\n     * // => objects for ['barney', 'fred']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.dropRightWhile(users, ['active', false]);\n     * // => objects for ['barney']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.dropRightWhile(users, 'active');\n     * // => objects for ['barney', 'fred', 'pebbles']\n     */\n\n\n    function dropRightWhile(array, predicate) {\n      return array && array.length ? baseWhile(array, getIteratee(predicate, 3), true, true) : [];\n    }\n    /**\n     * Creates a slice of `array` excluding elements dropped from the beginning.\n     * Elements are dropped until `predicate` returns falsey. The predicate is\n     * invoked with three arguments: (value, index, array).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': false },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': true }\n     * ];\n     *\n     * _.dropWhile(users, function(o) { return !o.active; });\n     * // => objects for ['pebbles']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.dropWhile(users, { 'user': 'barney', 'active': false });\n     * // => objects for ['fred', 'pebbles']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.dropWhile(users, ['active', false]);\n     * // => objects for ['pebbles']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.dropWhile(users, 'active');\n     * // => objects for ['barney', 'fred', 'pebbles']\n     */\n\n\n    function dropWhile(array, predicate) {\n      return array && array.length ? baseWhile(array, getIteratee(predicate, 3), true) : [];\n    }\n    /**\n     * Fills elements of `array` with `value` from `start` up to, but not\n     * including, `end`.\n     *\n     * **Note:** This method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.2.0\n     * @category Array\n     * @param {Array} array The array to fill.\n     * @param {*} value The value to fill `array` with.\n     * @param {number} [start=0] The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = [1, 2, 3];\n     *\n     * _.fill(array, 'a');\n     * console.log(array);\n     * // => ['a', 'a', 'a']\n     *\n     * _.fill(Array(3), 2);\n     * // => [2, 2, 2]\n     *\n     * _.fill([4, 6, 8, 10], '*', 1, 3);\n     * // => [4, '*', '*', 10]\n     */\n\n\n    function fill(array, value, start, end) {\n      var length = array == null ? 0 : array.length;\n\n      if (!length) {\n        return [];\n      }\n\n      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {\n        start = 0;\n        end = length;\n      }\n\n      return baseFill(array, value, start, end);\n    }\n    /**\n     * This method is like `_.find` except that it returns the index of the first\n     * element `predicate` returns truthy for instead of the element itself.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param {number} [fromIndex=0] The index to search from.\n     * @returns {number} Returns the index of the found element, else `-1`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': false },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': true }\n     * ];\n     *\n     * _.findIndex(users, function(o) { return o.user == 'barney'; });\n     * // => 0\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.findIndex(users, { 'user': 'fred', 'active': false });\n     * // => 1\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.findIndex(users, ['active', false]);\n     * // => 0\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.findIndex(users, 'active');\n     * // => 2\n     */\n\n\n    function findIndex(array, predicate, fromIndex) {\n      var length = array == null ? 0 : array.length;\n\n      if (!length) {\n        return -1;\n      }\n\n      var index = fromIndex == null ? 0 : toInteger(fromIndex);\n\n      if (index < 0) {\n        index = nativeMax(length + index, 0);\n      }\n\n      return baseFindIndex(array, getIteratee(predicate, 3), index);\n    }\n    /**\n     * This method is like `_.findIndex` except that it iterates over elements\n     * of `collection` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param {number} [fromIndex=array.length-1] The index to search from.\n     * @returns {number} Returns the index of the found element, else `-1`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': true },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': false }\n     * ];\n     *\n     * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });\n     * // => 2\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.findLastIndex(users, { 'user': 'barney', 'active': true });\n     * // => 0\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.findLastIndex(users, ['active', false]);\n     * // => 2\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.findLastIndex(users, 'active');\n     * // => 0\n     */\n\n\n    function findLastIndex(array, predicate, fromIndex) {\n      var length = array == null ? 0 : array.length;\n\n      if (!length) {\n        return -1;\n      }\n\n      var index = length - 1;\n\n      if (fromIndex !== undefined) {\n        index = toInteger(fromIndex);\n        index = fromIndex < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);\n      }\n\n      return baseFindIndex(array, getIteratee(predicate, 3), index, true);\n    }\n    /**\n     * Flattens `array` a single level deep.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to flatten.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * _.flatten([1, [2, [3, [4]], 5]]);\n     * // => [1, 2, [3, [4]], 5]\n     */\n\n\n    function flatten(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? baseFlatten(array, 1) : [];\n    }\n    /**\n     * Recursively flattens `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to flatten.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * _.flattenDeep([1, [2, [3, [4]], 5]]);\n     * // => [1, 2, 3, 4, 5]\n     */\n\n\n    function flattenDeep(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? baseFlatten(array, INFINITY) : [];\n    }\n    /**\n     * Recursively flatten `array` up to `depth` times.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.4.0\n     * @category Array\n     * @param {Array} array The array to flatten.\n     * @param {number} [depth=1] The maximum recursion depth.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * var array = [1, [2, [3, [4]], 5]];\n     *\n     * _.flattenDepth(array, 1);\n     * // => [1, 2, [3, [4]], 5]\n     *\n     * _.flattenDepth(array, 2);\n     * // => [1, 2, 3, [4], 5]\n     */\n\n\n    function flattenDepth(array, depth) {\n      var length = array == null ? 0 : array.length;\n\n      if (!length) {\n        return [];\n      }\n\n      depth = depth === undefined ? 1 : toInteger(depth);\n      return baseFlatten(array, depth);\n    }\n    /**\n     * The inverse of `_.toPairs`; this method returns an object composed\n     * from key-value `pairs`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} pairs The key-value pairs.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * _.fromPairs([['a', 1], ['b', 2]]);\n     * // => { 'a': 1, 'b': 2 }\n     */\n\n\n    function fromPairs(pairs) {\n      var index = -1,\n          length = pairs == null ? 0 : pairs.length,\n          result = {};\n\n      while (++index < length) {\n        var pair = pairs[index];\n        result[pair[0]] = pair[1];\n      }\n\n      return result;\n    }\n    /**\n     * Gets the first element of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @alias first\n     * @category Array\n     * @param {Array} array The array to query.\n     * @returns {*} Returns the first element of `array`.\n     * @example\n     *\n     * _.head([1, 2, 3]);\n     * // => 1\n     *\n     * _.head([]);\n     * // => undefined\n     */\n\n\n    function head(array) {\n      return array && array.length ? array[0] : undefined;\n    }\n    /**\n     * Gets the index at which the first occurrence of `value` is found in `array`\n     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons. If `fromIndex` is negative, it's used as the\n     * offset from the end of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {*} value The value to search for.\n     * @param {number} [fromIndex=0] The index to search from.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     * @example\n     *\n     * _.indexOf([1, 2, 1, 2], 2);\n     * // => 1\n     *\n     * // Search from the `fromIndex`.\n     * _.indexOf([1, 2, 1, 2], 2, 2);\n     * // => 3\n     */\n\n\n    function indexOf(array, value, fromIndex) {\n      var length = array == null ? 0 : array.length;\n\n      if (!length) {\n        return -1;\n      }\n\n      var index = fromIndex == null ? 0 : toInteger(fromIndex);\n\n      if (index < 0) {\n        index = nativeMax(length + index, 0);\n      }\n\n      return baseIndexOf(array, value, index);\n    }\n    /**\n     * Gets all but the last element of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.initial([1, 2, 3]);\n     * // => [1, 2]\n     */\n\n\n    function initial(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? baseSlice(array, 0, -1) : [];\n    }\n    /**\n     * Creates an array of unique values that are included in all given arrays\n     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons. The order and references of result values are\n     * determined by the first array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @returns {Array} Returns the new array of intersecting values.\n     * @example\n     *\n     * _.intersection([2, 1], [2, 3]);\n     * // => [2]\n     */\n\n\n    var intersection = baseRest(function (arrays) {\n      var mapped = arrayMap(arrays, castArrayLikeObject);\n      return mapped.length && mapped[0] === arrays[0] ? baseIntersection(mapped) : [];\n    });\n    /**\n     * This method is like `_.intersection` except that it accepts `iteratee`\n     * which is invoked for each element of each `arrays` to generate the criterion\n     * by which they're compared. The order and references of result values are\n     * determined by the first array. The iteratee is invoked with one argument:\n     * (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new array of intersecting values.\n     * @example\n     *\n     * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n     * // => [2.1]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n     * // => [{ 'x': 1 }]\n     */\n\n    var intersectionBy = baseRest(function (arrays) {\n      var iteratee = last(arrays),\n          mapped = arrayMap(arrays, castArrayLikeObject);\n\n      if (iteratee === last(mapped)) {\n        iteratee = undefined;\n      } else {\n        mapped.pop();\n      }\n\n      return mapped.length && mapped[0] === arrays[0] ? baseIntersection(mapped, getIteratee(iteratee, 2)) : [];\n    });\n    /**\n     * This method is like `_.intersection` except that it accepts `comparator`\n     * which is invoked to compare elements of `arrays`. The order and references\n     * of result values are determined by the first array. The comparator is\n     * invoked with two arguments: (arrVal, othVal).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of intersecting values.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n     *\n     * _.intersectionWith(objects, others, _.isEqual);\n     * // => [{ 'x': 1, 'y': 2 }]\n     */\n\n    var intersectionWith = baseRest(function (arrays) {\n      var comparator = last(arrays),\n          mapped = arrayMap(arrays, castArrayLikeObject);\n      comparator = typeof comparator == 'function' ? comparator : undefined;\n\n      if (comparator) {\n        mapped.pop();\n      }\n\n      return mapped.length && mapped[0] === arrays[0] ? baseIntersection(mapped, undefined, comparator) : [];\n    });\n    /**\n     * Converts all elements in `array` into a string separated by `separator`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to convert.\n     * @param {string} [separator=','] The element separator.\n     * @returns {string} Returns the joined string.\n     * @example\n     *\n     * _.join(['a', 'b', 'c'], '~');\n     * // => 'a~b~c'\n     */\n\n    function join(array, separator) {\n      return array == null ? '' : nativeJoin.call(array, separator);\n    }\n    /**\n     * Gets the last element of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @returns {*} Returns the last element of `array`.\n     * @example\n     *\n     * _.last([1, 2, 3]);\n     * // => 3\n     */\n\n\n    function last(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? array[length - 1] : undefined;\n    }\n    /**\n     * This method is like `_.indexOf` except that it iterates over elements of\n     * `array` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {*} value The value to search for.\n     * @param {number} [fromIndex=array.length-1] The index to search from.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     * @example\n     *\n     * _.lastIndexOf([1, 2, 1, 2], 2);\n     * // => 3\n     *\n     * // Search from the `fromIndex`.\n     * _.lastIndexOf([1, 2, 1, 2], 2, 2);\n     * // => 1\n     */\n\n\n    function lastIndexOf(array, value, fromIndex) {\n      var length = array == null ? 0 : array.length;\n\n      if (!length) {\n        return -1;\n      }\n\n      var index = length;\n\n      if (fromIndex !== undefined) {\n        index = toInteger(fromIndex);\n        index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);\n      }\n\n      return value === value ? strictLastIndexOf(array, value, index) : baseFindIndex(array, baseIsNaN, index, true);\n    }\n    /**\n     * Gets the element at index `n` of `array`. If `n` is negative, the nth\n     * element from the end is returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.11.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=0] The index of the element to return.\n     * @returns {*} Returns the nth element of `array`.\n     * @example\n     *\n     * var array = ['a', 'b', 'c', 'd'];\n     *\n     * _.nth(array, 1);\n     * // => 'b'\n     *\n     * _.nth(array, -2);\n     * // => 'c';\n     */\n\n\n    function nth(array, n) {\n      return array && array.length ? baseNth(array, toInteger(n)) : undefined;\n    }\n    /**\n     * Removes all given values from `array` using\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons.\n     *\n     * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`\n     * to remove elements from an array by predicate.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {...*} [values] The values to remove.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n     *\n     * _.pull(array, 'a', 'c');\n     * console.log(array);\n     * // => ['b', 'b']\n     */\n\n\n    var pull = baseRest(pullAll);\n    /**\n     * This method is like `_.pull` except that it accepts an array of values to remove.\n     *\n     * **Note:** Unlike `_.difference`, this method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {Array} values The values to remove.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n     *\n     * _.pullAll(array, ['a', 'c']);\n     * console.log(array);\n     * // => ['b', 'b']\n     */\n\n    function pullAll(array, values) {\n      return array && array.length && values && values.length ? basePullAll(array, values) : array;\n    }\n    /**\n     * This method is like `_.pullAll` except that it accepts `iteratee` which is\n     * invoked for each element of `array` and `values` to generate the criterion\n     * by which they're compared. The iteratee is invoked with one argument: (value).\n     *\n     * **Note:** Unlike `_.differenceBy`, this method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {Array} values The values to remove.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];\n     *\n     * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');\n     * console.log(array);\n     * // => [{ 'x': 2 }]\n     */\n\n\n    function pullAllBy(array, values, iteratee) {\n      return array && array.length && values && values.length ? basePullAll(array, values, getIteratee(iteratee, 2)) : array;\n    }\n    /**\n     * This method is like `_.pullAll` except that it accepts `comparator` which\n     * is invoked to compare elements of `array` to `values`. The comparator is\n     * invoked with two arguments: (arrVal, othVal).\n     *\n     * **Note:** Unlike `_.differenceWith`, this method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.6.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {Array} values The values to remove.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];\n     *\n     * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);\n     * console.log(array);\n     * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]\n     */\n\n\n    function pullAllWith(array, values, comparator) {\n      return array && array.length && values && values.length ? basePullAll(array, values, undefined, comparator) : array;\n    }\n    /**\n     * Removes elements from `array` corresponding to `indexes` and returns an\n     * array of removed elements.\n     *\n     * **Note:** Unlike `_.at`, this method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {...(number|number[])} [indexes] The indexes of elements to remove.\n     * @returns {Array} Returns the new array of removed elements.\n     * @example\n     *\n     * var array = ['a', 'b', 'c', 'd'];\n     * var pulled = _.pullAt(array, [1, 3]);\n     *\n     * console.log(array);\n     * // => ['a', 'c']\n     *\n     * console.log(pulled);\n     * // => ['b', 'd']\n     */\n\n\n    var pullAt = flatRest(function (array, indexes) {\n      var length = array == null ? 0 : array.length,\n          result = baseAt(array, indexes);\n      basePullAt(array, arrayMap(indexes, function (index) {\n        return isIndex(index, length) ? +index : index;\n      }).sort(compareAscending));\n      return result;\n    });\n    /**\n     * Removes all elements from `array` that `predicate` returns truthy for\n     * and returns an array of the removed elements. The predicate is invoked\n     * with three arguments: (value, index, array).\n     *\n     * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`\n     * to pull elements from an array by value.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new array of removed elements.\n     * @example\n     *\n     * var array = [1, 2, 3, 4];\n     * var evens = _.remove(array, function(n) {\n     *   return n % 2 == 0;\n     * });\n     *\n     * console.log(array);\n     * // => [1, 3]\n     *\n     * console.log(evens);\n     * // => [2, 4]\n     */\n\n    function remove(array, predicate) {\n      var result = [];\n\n      if (!(array && array.length)) {\n        return result;\n      }\n\n      var index = -1,\n          indexes = [],\n          length = array.length;\n      predicate = getIteratee(predicate, 3);\n\n      while (++index < length) {\n        var value = array[index];\n\n        if (predicate(value, index, array)) {\n          result.push(value);\n          indexes.push(index);\n        }\n      }\n\n      basePullAt(array, indexes);\n      return result;\n    }\n    /**\n     * Reverses `array` so that the first element becomes the last, the second\n     * element becomes the second to last, and so on.\n     *\n     * **Note:** This method mutates `array` and is based on\n     * [`Array#reverse`](https://mdn.io/Array/reverse).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = [1, 2, 3];\n     *\n     * _.reverse(array);\n     * // => [3, 2, 1]\n     *\n     * console.log(array);\n     * // => [3, 2, 1]\n     */\n\n\n    function reverse(array) {\n      return array == null ? array : nativeReverse.call(array);\n    }\n    /**\n     * Creates a slice of `array` from `start` up to, but not including, `end`.\n     *\n     * **Note:** This method is used instead of\n     * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are\n     * returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to slice.\n     * @param {number} [start=0] The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns the slice of `array`.\n     */\n\n\n    function slice(array, start, end) {\n      var length = array == null ? 0 : array.length;\n\n      if (!length) {\n        return [];\n      }\n\n      if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {\n        start = 0;\n        end = length;\n      } else {\n        start = start == null ? 0 : toInteger(start);\n        end = end === undefined ? length : toInteger(end);\n      }\n\n      return baseSlice(array, start, end);\n    }\n    /**\n     * Uses a binary search to determine the lowest index at which `value`\n     * should be inserted into `array` in order to maintain its sort order.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     * @example\n     *\n     * _.sortedIndex([30, 50], 40);\n     * // => 1\n     */\n\n\n    function sortedIndex(array, value) {\n      return baseSortedIndex(array, value);\n    }\n    /**\n     * This method is like `_.sortedIndex` except that it accepts `iteratee`\n     * which is invoked for `value` and each element of `array` to compute their\n     * sort ranking. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     * @example\n     *\n     * var objects = [{ 'x': 4 }, { 'x': 5 }];\n     *\n     * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n     * // => 0\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.sortedIndexBy(objects, { 'x': 4 }, 'x');\n     * // => 0\n     */\n\n\n    function sortedIndexBy(array, value, iteratee) {\n      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));\n    }\n    /**\n     * This method is like `_.indexOf` except that it performs a binary\n     * search on a sorted `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {*} value The value to search for.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     * @example\n     *\n     * _.sortedIndexOf([4, 5, 5, 5, 6], 5);\n     * // => 1\n     */\n\n\n    function sortedIndexOf(array, value) {\n      var length = array == null ? 0 : array.length;\n\n      if (length) {\n        var index = baseSortedIndex(array, value);\n\n        if (index < length && eq(array[index], value)) {\n          return index;\n        }\n      }\n\n      return -1;\n    }\n    /**\n     * This method is like `_.sortedIndex` except that it returns the highest\n     * index at which `value` should be inserted into `array` in order to\n     * maintain its sort order.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     * @example\n     *\n     * _.sortedLastIndex([4, 5, 5, 5, 6], 5);\n     * // => 4\n     */\n\n\n    function sortedLastIndex(array, value) {\n      return baseSortedIndex(array, value, true);\n    }\n    /**\n     * This method is like `_.sortedLastIndex` except that it accepts `iteratee`\n     * which is invoked for `value` and each element of `array` to compute their\n     * sort ranking. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     * @example\n     *\n     * var objects = [{ 'x': 4 }, { 'x': 5 }];\n     *\n     * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n     * // => 1\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');\n     * // => 1\n     */\n\n\n    function sortedLastIndexBy(array, value, iteratee) {\n      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);\n    }\n    /**\n     * This method is like `_.lastIndexOf` except that it performs a binary\n     * search on a sorted `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {*} value The value to search for.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     * @example\n     *\n     * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);\n     * // => 3\n     */\n\n\n    function sortedLastIndexOf(array, value) {\n      var length = array == null ? 0 : array.length;\n\n      if (length) {\n        var index = baseSortedIndex(array, value, true) - 1;\n\n        if (eq(array[index], value)) {\n          return index;\n        }\n      }\n\n      return -1;\n    }\n    /**\n     * This method is like `_.uniq` except that it's designed and optimized\n     * for sorted arrays.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * _.sortedUniq([1, 1, 2]);\n     * // => [1, 2]\n     */\n\n\n    function sortedUniq(array) {\n      return array && array.length ? baseSortedUniq(array) : [];\n    }\n    /**\n     * This method is like `_.uniqBy` except that it's designed and optimized\n     * for sorted arrays.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);\n     * // => [1.1, 2.3]\n     */\n\n\n    function sortedUniqBy(array, iteratee) {\n      return array && array.length ? baseSortedUniq(array, getIteratee(iteratee, 2)) : [];\n    }\n    /**\n     * Gets all but the first element of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.tail([1, 2, 3]);\n     * // => [2, 3]\n     */\n\n\n    function tail(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? baseSlice(array, 1, length) : [];\n    }\n    /**\n     * Creates a slice of `array` with `n` elements taken from the beginning.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=1] The number of elements to take.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.take([1, 2, 3]);\n     * // => [1]\n     *\n     * _.take([1, 2, 3], 2);\n     * // => [1, 2]\n     *\n     * _.take([1, 2, 3], 5);\n     * // => [1, 2, 3]\n     *\n     * _.take([1, 2, 3], 0);\n     * // => []\n     */\n\n\n    function take(array, n, guard) {\n      if (!(array && array.length)) {\n        return [];\n      }\n\n      n = guard || n === undefined ? 1 : toInteger(n);\n      return baseSlice(array, 0, n < 0 ? 0 : n);\n    }\n    /**\n     * Creates a slice of `array` with `n` elements taken from the end.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=1] The number of elements to take.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.takeRight([1, 2, 3]);\n     * // => [3]\n     *\n     * _.takeRight([1, 2, 3], 2);\n     * // => [2, 3]\n     *\n     * _.takeRight([1, 2, 3], 5);\n     * // => [1, 2, 3]\n     *\n     * _.takeRight([1, 2, 3], 0);\n     * // => []\n     */\n\n\n    function takeRight(array, n, guard) {\n      var length = array == null ? 0 : array.length;\n\n      if (!length) {\n        return [];\n      }\n\n      n = guard || n === undefined ? 1 : toInteger(n);\n      n = length - n;\n      return baseSlice(array, n < 0 ? 0 : n, length);\n    }\n    /**\n     * Creates a slice of `array` with elements taken from the end. Elements are\n     * taken until `predicate` returns falsey. The predicate is invoked with\n     * three arguments: (value, index, array).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': true },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': false }\n     * ];\n     *\n     * _.takeRightWhile(users, function(o) { return !o.active; });\n     * // => objects for ['fred', 'pebbles']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });\n     * // => objects for ['pebbles']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.takeRightWhile(users, ['active', false]);\n     * // => objects for ['fred', 'pebbles']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.takeRightWhile(users, 'active');\n     * // => []\n     */\n\n\n    function takeRightWhile(array, predicate) {\n      return array && array.length ? baseWhile(array, getIteratee(predicate, 3), false, true) : [];\n    }\n    /**\n     * Creates a slice of `array` with elements taken from the beginning. Elements\n     * are taken until `predicate` returns falsey. The predicate is invoked with\n     * three arguments: (value, index, array).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': false },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': true }\n     * ];\n     *\n     * _.takeWhile(users, function(o) { return !o.active; });\n     * // => objects for ['barney', 'fred']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.takeWhile(users, { 'user': 'barney', 'active': false });\n     * // => objects for ['barney']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.takeWhile(users, ['active', false]);\n     * // => objects for ['barney', 'fred']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.takeWhile(users, 'active');\n     * // => []\n     */\n\n\n    function takeWhile(array, predicate) {\n      return array && array.length ? baseWhile(array, getIteratee(predicate, 3)) : [];\n    }\n    /**\n     * Creates an array of unique values, in order, from all given arrays using\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @returns {Array} Returns the new array of combined values.\n     * @example\n     *\n     * _.union([2], [1, 2]);\n     * // => [2, 1]\n     */\n\n\n    var union = baseRest(function (arrays) {\n      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));\n    });\n    /**\n     * This method is like `_.union` except that it accepts `iteratee` which is\n     * invoked for each element of each `arrays` to generate the criterion by\n     * which uniqueness is computed. Result values are chosen from the first\n     * array in which the value occurs. The iteratee is invoked with one argument:\n     * (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new array of combined values.\n     * @example\n     *\n     * _.unionBy([2.1], [1.2, 2.3], Math.floor);\n     * // => [2.1, 1.2]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n     * // => [{ 'x': 1 }, { 'x': 2 }]\n     */\n\n    var unionBy = baseRest(function (arrays) {\n      var iteratee = last(arrays);\n\n      if (isArrayLikeObject(iteratee)) {\n        iteratee = undefined;\n      }\n\n      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));\n    });\n    /**\n     * This method is like `_.union` except that it accepts `comparator` which\n     * is invoked to compare elements of `arrays`. Result values are chosen from\n     * the first array in which the value occurs. The comparator is invoked\n     * with two arguments: (arrVal, othVal).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of combined values.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n     *\n     * _.unionWith(objects, others, _.isEqual);\n     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n     */\n\n    var unionWith = baseRest(function (arrays) {\n      var comparator = last(arrays);\n      comparator = typeof comparator == 'function' ? comparator : undefined;\n      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);\n    });\n    /**\n     * Creates a duplicate-free version of an array, using\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons, in which only the first occurrence of each element\n     * is kept. The order of result values is determined by the order they occur\n     * in the array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * _.uniq([2, 1, 2]);\n     * // => [2, 1]\n     */\n\n    function uniq(array) {\n      return array && array.length ? baseUniq(array) : [];\n    }\n    /**\n     * This method is like `_.uniq` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the criterion by which\n     * uniqueness is computed. The order of result values is determined by the\n     * order they occur in the array. The iteratee is invoked with one argument:\n     * (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * _.uniqBy([2.1, 1.2, 2.3], Math.floor);\n     * // => [2.1, 1.2]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');\n     * // => [{ 'x': 1 }, { 'x': 2 }]\n     */\n\n\n    function uniqBy(array, iteratee) {\n      return array && array.length ? baseUniq(array, getIteratee(iteratee, 2)) : [];\n    }\n    /**\n     * This method is like `_.uniq` except that it accepts `comparator` which\n     * is invoked to compare elements of `array`. The order of result values is\n     * determined by the order they occur in the array.The comparator is invoked\n     * with two arguments: (arrVal, othVal).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];\n     *\n     * _.uniqWith(objects, _.isEqual);\n     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]\n     */\n\n\n    function uniqWith(array, comparator) {\n      comparator = typeof comparator == 'function' ? comparator : undefined;\n      return array && array.length ? baseUniq(array, undefined, comparator) : [];\n    }\n    /**\n     * This method is like `_.zip` except that it accepts an array of grouped\n     * elements and creates an array regrouping the elements to their pre-zip\n     * configuration.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.2.0\n     * @category Array\n     * @param {Array} array The array of grouped elements to process.\n     * @returns {Array} Returns the new array of regrouped elements.\n     * @example\n     *\n     * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);\n     * // => [['a', 1, true], ['b', 2, false]]\n     *\n     * _.unzip(zipped);\n     * // => [['a', 'b'], [1, 2], [true, false]]\n     */\n\n\n    function unzip(array) {\n      if (!(array && array.length)) {\n        return [];\n      }\n\n      var length = 0;\n      array = arrayFilter(array, function (group) {\n        if (isArrayLikeObject(group)) {\n          length = nativeMax(group.length, length);\n          return true;\n        }\n      });\n      return baseTimes(length, function (index) {\n        return arrayMap(array, baseProperty(index));\n      });\n    }\n    /**\n     * This method is like `_.unzip` except that it accepts `iteratee` to specify\n     * how regrouped values should be combined. The iteratee is invoked with the\n     * elements of each group: (...group).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.8.0\n     * @category Array\n     * @param {Array} array The array of grouped elements to process.\n     * @param {Function} [iteratee=_.identity] The function to combine\n     *  regrouped values.\n     * @returns {Array} Returns the new array of regrouped elements.\n     * @example\n     *\n     * var zipped = _.zip([1, 2], [10, 20], [100, 200]);\n     * // => [[1, 10, 100], [2, 20, 200]]\n     *\n     * _.unzipWith(zipped, _.add);\n     * // => [3, 30, 300]\n     */\n\n\n    function unzipWith(array, iteratee) {\n      if (!(array && array.length)) {\n        return [];\n      }\n\n      var result = unzip(array);\n\n      if (iteratee == null) {\n        return result;\n      }\n\n      return arrayMap(result, function (group) {\n        return apply(iteratee, undefined, group);\n      });\n    }\n    /**\n     * Creates an array excluding all given values using\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons.\n     *\n     * **Note:** Unlike `_.pull`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {...*} [values] The values to exclude.\n     * @returns {Array} Returns the new array of filtered values.\n     * @see _.difference, _.xor\n     * @example\n     *\n     * _.without([2, 1, 2, 3], 1, 2);\n     * // => [3]\n     */\n\n\n    var without = baseRest(function (array, values) {\n      return isArrayLikeObject(array) ? baseDifference(array, values) : [];\n    });\n    /**\n     * Creates an array of unique values that is the\n     * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)\n     * of the given arrays. The order of result values is determined by the order\n     * they occur in the arrays.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @returns {Array} Returns the new array of filtered values.\n     * @see _.difference, _.without\n     * @example\n     *\n     * _.xor([2, 1], [2, 3]);\n     * // => [1, 3]\n     */\n\n    var xor = baseRest(function (arrays) {\n      return baseXor(arrayFilter(arrays, isArrayLikeObject));\n    });\n    /**\n     * This method is like `_.xor` except that it accepts `iteratee` which is\n     * invoked for each element of each `arrays` to generate the criterion by\n     * which by which they're compared. The order of result values is determined\n     * by the order they occur in the arrays. The iteratee is invoked with one\n     * argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n     * // => [1.2, 3.4]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n     * // => [{ 'x': 2 }]\n     */\n\n    var xorBy = baseRest(function (arrays) {\n      var iteratee = last(arrays);\n\n      if (isArrayLikeObject(iteratee)) {\n        iteratee = undefined;\n      }\n\n      return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));\n    });\n    /**\n     * This method is like `_.xor` except that it accepts `comparator` which is\n     * invoked to compare elements of `arrays`. The order of result values is\n     * determined by the order they occur in the arrays. The comparator is invoked\n     * with two arguments: (arrVal, othVal).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n     *\n     * _.xorWith(objects, others, _.isEqual);\n     * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n     */\n\n    var xorWith = baseRest(function (arrays) {\n      var comparator = last(arrays);\n      comparator = typeof comparator == 'function' ? comparator : undefined;\n      return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);\n    });\n    /**\n     * Creates an array of grouped elements, the first of which contains the\n     * first elements of the given arrays, the second of which contains the\n     * second elements of the given arrays, and so on.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to process.\n     * @returns {Array} Returns the new array of grouped elements.\n     * @example\n     *\n     * _.zip(['a', 'b'], [1, 2], [true, false]);\n     * // => [['a', 1, true], ['b', 2, false]]\n     */\n\n    var zip = baseRest(unzip);\n    /**\n     * This method is like `_.fromPairs` except that it accepts two arrays,\n     * one of property identifiers and one of corresponding values.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.4.0\n     * @category Array\n     * @param {Array} [props=[]] The property identifiers.\n     * @param {Array} [values=[]] The property values.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * _.zipObject(['a', 'b'], [1, 2]);\n     * // => { 'a': 1, 'b': 2 }\n     */\n\n    function zipObject(props, values) {\n      return baseZipObject(props || [], values || [], assignValue);\n    }\n    /**\n     * This method is like `_.zipObject` except that it supports property paths.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.1.0\n     * @category Array\n     * @param {Array} [props=[]] The property identifiers.\n     * @param {Array} [values=[]] The property values.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);\n     * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }\n     */\n\n\n    function zipObjectDeep(props, values) {\n      return baseZipObject(props || [], values || [], baseSet);\n    }\n    /**\n     * This method is like `_.zip` except that it accepts `iteratee` to specify\n     * how grouped values should be combined. The iteratee is invoked with the\n     * elements of each group: (...group).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.8.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to process.\n     * @param {Function} [iteratee=_.identity] The function to combine\n     *  grouped values.\n     * @returns {Array} Returns the new array of grouped elements.\n     * @example\n     *\n     * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {\n     *   return a + b + c;\n     * });\n     * // => [111, 222]\n     */\n\n\n    var zipWith = baseRest(function (arrays) {\n      var length = arrays.length,\n          iteratee = length > 1 ? arrays[length - 1] : undefined;\n      iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;\n      return unzipWith(arrays, iteratee);\n    });\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a `lodash` wrapper instance that wraps `value` with explicit method\n     * chain sequences enabled. The result of such sequences must be unwrapped\n     * with `_#value`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.3.0\n     * @category Seq\n     * @param {*} value The value to wrap.\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'age': 36 },\n     *   { 'user': 'fred',    'age': 40 },\n     *   { 'user': 'pebbles', 'age': 1 }\n     * ];\n     *\n     * var youngest = _\n     *   .chain(users)\n     *   .sortBy('age')\n     *   .map(function(o) {\n     *     return o.user + ' is ' + o.age;\n     *   })\n     *   .head()\n     *   .value();\n     * // => 'pebbles is 1'\n     */\n\n    function chain(value) {\n      var result = lodash(value);\n      result.__chain__ = true;\n      return result;\n    }\n    /**\n     * This method invokes `interceptor` and returns `value`. The interceptor\n     * is invoked with one argument; (value). The purpose of this method is to\n     * \"tap into\" a method chain sequence in order to modify intermediate results.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Seq\n     * @param {*} value The value to provide to `interceptor`.\n     * @param {Function} interceptor The function to invoke.\n     * @returns {*} Returns `value`.\n     * @example\n     *\n     * _([1, 2, 3])\n     *  .tap(function(array) {\n     *    // Mutate input array.\n     *    array.pop();\n     *  })\n     *  .reverse()\n     *  .value();\n     * // => [2, 1]\n     */\n\n\n    function tap(value, interceptor) {\n      interceptor(value);\n      return value;\n    }\n    /**\n     * This method is like `_.tap` except that it returns the result of `interceptor`.\n     * The purpose of this method is to \"pass thru\" values replacing intermediate\n     * results in a method chain sequence.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Seq\n     * @param {*} value The value to provide to `interceptor`.\n     * @param {Function} interceptor The function to invoke.\n     * @returns {*} Returns the result of `interceptor`.\n     * @example\n     *\n     * _('  abc  ')\n     *  .chain()\n     *  .trim()\n     *  .thru(function(value) {\n     *    return [value];\n     *  })\n     *  .value();\n     * // => ['abc']\n     */\n\n\n    function thru(value, interceptor) {\n      return interceptor(value);\n    }\n    /**\n     * This method is the wrapper version of `_.at`.\n     *\n     * @name at\n     * @memberOf _\n     * @since 1.0.0\n     * @category Seq\n     * @param {...(string|string[])} [paths] The property paths to pick.\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n     *\n     * _(object).at(['a[0].b.c', 'a[1]']).value();\n     * // => [3, 4]\n     */\n\n\n    var wrapperAt = flatRest(function (paths) {\n      var length = paths.length,\n          start = length ? paths[0] : 0,\n          value = this.__wrapped__,\n          interceptor = function interceptor(object) {\n        return baseAt(object, paths);\n      };\n\n      if (length > 1 || this.__actions__.length || !(value instanceof LazyWrapper) || !isIndex(start)) {\n        return this.thru(interceptor);\n      }\n\n      value = value.slice(start, +start + (length ? 1 : 0));\n\n      value.__actions__.push({\n        'func': thru,\n        'args': [interceptor],\n        'thisArg': undefined\n      });\n\n      return new LodashWrapper(value, this.__chain__).thru(function (array) {\n        if (length && !array.length) {\n          array.push(undefined);\n        }\n\n        return array;\n      });\n    });\n    /**\n     * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.\n     *\n     * @name chain\n     * @memberOf _\n     * @since 0.1.0\n     * @category Seq\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36 },\n     *   { 'user': 'fred',   'age': 40 }\n     * ];\n     *\n     * // A sequence without explicit chaining.\n     * _(users).head();\n     * // => { 'user': 'barney', 'age': 36 }\n     *\n     * // A sequence with explicit chaining.\n     * _(users)\n     *   .chain()\n     *   .head()\n     *   .pick('user')\n     *   .value();\n     * // => { 'user': 'barney' }\n     */\n\n    function wrapperChain() {\n      return chain(this);\n    }\n    /**\n     * Executes the chain sequence and returns the wrapped result.\n     *\n     * @name commit\n     * @memberOf _\n     * @since 3.2.0\n     * @category Seq\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var array = [1, 2];\n     * var wrapped = _(array).push(3);\n     *\n     * console.log(array);\n     * // => [1, 2]\n     *\n     * wrapped = wrapped.commit();\n     * console.log(array);\n     * // => [1, 2, 3]\n     *\n     * wrapped.last();\n     * // => 3\n     *\n     * console.log(array);\n     * // => [1, 2, 3]\n     */\n\n\n    function wrapperCommit() {\n      return new LodashWrapper(this.value(), this.__chain__);\n    }\n    /**\n     * Gets the next value on a wrapped object following the\n     * [iterator protocol](https://mdn.io/iteration_protocols#iterator).\n     *\n     * @name next\n     * @memberOf _\n     * @since 4.0.0\n     * @category Seq\n     * @returns {Object} Returns the next iterator value.\n     * @example\n     *\n     * var wrapped = _([1, 2]);\n     *\n     * wrapped.next();\n     * // => { 'done': false, 'value': 1 }\n     *\n     * wrapped.next();\n     * // => { 'done': false, 'value': 2 }\n     *\n     * wrapped.next();\n     * // => { 'done': true, 'value': undefined }\n     */\n\n\n    function wrapperNext() {\n      if (this.__values__ === undefined) {\n        this.__values__ = toArray(this.value());\n      }\n\n      var done = this.__index__ >= this.__values__.length,\n          value = done ? undefined : this.__values__[this.__index__++];\n      return {\n        'done': done,\n        'value': value\n      };\n    }\n    /**\n     * Enables the wrapper to be iterable.\n     *\n     * @name Symbol.iterator\n     * @memberOf _\n     * @since 4.0.0\n     * @category Seq\n     * @returns {Object} Returns the wrapper object.\n     * @example\n     *\n     * var wrapped = _([1, 2]);\n     *\n     * wrapped[Symbol.iterator]() === wrapped;\n     * // => true\n     *\n     * Array.from(wrapped);\n     * // => [1, 2]\n     */\n\n\n    function wrapperToIterator() {\n      return this;\n    }\n    /**\n     * Creates a clone of the chain sequence planting `value` as the wrapped value.\n     *\n     * @name plant\n     * @memberOf _\n     * @since 3.2.0\n     * @category Seq\n     * @param {*} value The value to plant.\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var wrapped = _([1, 2]).map(square);\n     * var other = wrapped.plant([3, 4]);\n     *\n     * other.value();\n     * // => [9, 16]\n     *\n     * wrapped.value();\n     * // => [1, 4]\n     */\n\n\n    function wrapperPlant(value) {\n      var result,\n          parent = this;\n\n      while (parent instanceof baseLodash) {\n        var clone = wrapperClone(parent);\n        clone.__index__ = 0;\n        clone.__values__ = undefined;\n\n        if (result) {\n          previous.__wrapped__ = clone;\n        } else {\n          result = clone;\n        }\n\n        var previous = clone;\n        parent = parent.__wrapped__;\n      }\n\n      previous.__wrapped__ = value;\n      return result;\n    }\n    /**\n     * This method is the wrapper version of `_.reverse`.\n     *\n     * **Note:** This method mutates the wrapped array.\n     *\n     * @name reverse\n     * @memberOf _\n     * @since 0.1.0\n     * @category Seq\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var array = [1, 2, 3];\n     *\n     * _(array).reverse().value()\n     * // => [3, 2, 1]\n     *\n     * console.log(array);\n     * // => [3, 2, 1]\n     */\n\n\n    function wrapperReverse() {\n      var value = this.__wrapped__;\n\n      if (value instanceof LazyWrapper) {\n        var wrapped = value;\n\n        if (this.__actions__.length) {\n          wrapped = new LazyWrapper(this);\n        }\n\n        wrapped = wrapped.reverse();\n\n        wrapped.__actions__.push({\n          'func': thru,\n          'args': [reverse],\n          'thisArg': undefined\n        });\n\n        return new LodashWrapper(wrapped, this.__chain__);\n      }\n\n      return this.thru(reverse);\n    }\n    /**\n     * Executes the chain sequence to resolve the unwrapped value.\n     *\n     * @name value\n     * @memberOf _\n     * @since 0.1.0\n     * @alias toJSON, valueOf\n     * @category Seq\n     * @returns {*} Returns the resolved unwrapped value.\n     * @example\n     *\n     * _([1, 2, 3]).value();\n     * // => [1, 2, 3]\n     */\n\n\n    function wrapperValue() {\n      return baseWrapperValue(this.__wrapped__, this.__actions__);\n    }\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates an object composed of keys generated from the results of running\n     * each element of `collection` thru `iteratee`. The corresponding value of\n     * each key is the number of times the key was returned by `iteratee`. The\n     * iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.5.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n     * @returns {Object} Returns the composed aggregate object.\n     * @example\n     *\n     * _.countBy([6.1, 4.2, 6.3], Math.floor);\n     * // => { '4': 1, '6': 2 }\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.countBy(['one', 'two', 'three'], 'length');\n     * // => { '3': 2, '5': 1 }\n     */\n\n\n    var countBy = createAggregator(function (result, value, key) {\n      if (hasOwnProperty.call(result, key)) {\n        ++result[key];\n      } else {\n        baseAssignValue(result, key, 1);\n      }\n    });\n    /**\n     * Checks if `predicate` returns truthy for **all** elements of `collection`.\n     * Iteration is stopped once `predicate` returns falsey. The predicate is\n     * invoked with three arguments: (value, index|key, collection).\n     *\n     * **Note:** This method returns `true` for\n     * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because\n     * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of\n     * elements of empty collections.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {boolean} Returns `true` if all elements pass the predicate check,\n     *  else `false`.\n     * @example\n     *\n     * _.every([true, 1, null, 'yes'], Boolean);\n     * // => false\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36, 'active': false },\n     *   { 'user': 'fred',   'age': 40, 'active': false }\n     * ];\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.every(users, { 'user': 'barney', 'active': false });\n     * // => false\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.every(users, ['active', false]);\n     * // => true\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.every(users, 'active');\n     * // => false\n     */\n\n    function every(collection, predicate, guard) {\n      var func = isArray(collection) ? arrayEvery : baseEvery;\n\n      if (guard && isIterateeCall(collection, predicate, guard)) {\n        predicate = undefined;\n      }\n\n      return func(collection, getIteratee(predicate, 3));\n    }\n    /**\n     * Iterates over elements of `collection`, returning an array of all elements\n     * `predicate` returns truthy for. The predicate is invoked with three\n     * arguments: (value, index|key, collection).\n     *\n     * **Note:** Unlike `_.remove`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new filtered array.\n     * @see _.reject\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36, 'active': true },\n     *   { 'user': 'fred',   'age': 40, 'active': false }\n     * ];\n     *\n     * _.filter(users, function(o) { return !o.active; });\n     * // => objects for ['fred']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.filter(users, { 'age': 36, 'active': true });\n     * // => objects for ['barney']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.filter(users, ['active', false]);\n     * // => objects for ['fred']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.filter(users, 'active');\n     * // => objects for ['barney']\n     *\n     * // Combining several predicates using `_.overEvery` or `_.overSome`.\n     * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));\n     * // => objects for ['fred', 'barney']\n     */\n\n\n    function filter(collection, predicate) {\n      var func = isArray(collection) ? arrayFilter : baseFilter;\n      return func(collection, getIteratee(predicate, 3));\n    }\n    /**\n     * Iterates over elements of `collection`, returning the first element\n     * `predicate` returns truthy for. The predicate is invoked with three\n     * arguments: (value, index|key, collection).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param {number} [fromIndex=0] The index to search from.\n     * @returns {*} Returns the matched element, else `undefined`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'age': 36, 'active': true },\n     *   { 'user': 'fred',    'age': 40, 'active': false },\n     *   { 'user': 'pebbles', 'age': 1,  'active': true }\n     * ];\n     *\n     * _.find(users, function(o) { return o.age < 40; });\n     * // => object for 'barney'\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.find(users, { 'age': 1, 'active': true });\n     * // => object for 'pebbles'\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.find(users, ['active', false]);\n     * // => object for 'fred'\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.find(users, 'active');\n     * // => object for 'barney'\n     */\n\n\n    var find = createFind(findIndex);\n    /**\n     * This method is like `_.find` except that it iterates over elements of\n     * `collection` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param {number} [fromIndex=collection.length-1] The index to search from.\n     * @returns {*} Returns the matched element, else `undefined`.\n     * @example\n     *\n     * _.findLast([1, 2, 3, 4], function(n) {\n     *   return n % 2 == 1;\n     * });\n     * // => 3\n     */\n\n    var findLast = createFind(findLastIndex);\n    /**\n     * Creates a flattened array of values by running each element in `collection`\n     * thru `iteratee` and flattening the mapped results. The iteratee is invoked\n     * with three arguments: (value, index|key, collection).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * function duplicate(n) {\n     *   return [n, n];\n     * }\n     *\n     * _.flatMap([1, 2], duplicate);\n     * // => [1, 1, 2, 2]\n     */\n\n    function flatMap(collection, iteratee) {\n      return baseFlatten(map(collection, iteratee), 1);\n    }\n    /**\n     * This method is like `_.flatMap` except that it recursively flattens the\n     * mapped results.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * function duplicate(n) {\n     *   return [[[n, n]]];\n     * }\n     *\n     * _.flatMapDeep([1, 2], duplicate);\n     * // => [1, 1, 2, 2]\n     */\n\n\n    function flatMapDeep(collection, iteratee) {\n      return baseFlatten(map(collection, iteratee), INFINITY);\n    }\n    /**\n     * This method is like `_.flatMap` except that it recursively flattens the\n     * mapped results up to `depth` times.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @param {number} [depth=1] The maximum recursion depth.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * function duplicate(n) {\n     *   return [[[n, n]]];\n     * }\n     *\n     * _.flatMapDepth([1, 2], duplicate, 2);\n     * // => [[1, 1], [2, 2]]\n     */\n\n\n    function flatMapDepth(collection, iteratee, depth) {\n      depth = depth === undefined ? 1 : toInteger(depth);\n      return baseFlatten(map(collection, iteratee), depth);\n    }\n    /**\n     * Iterates over elements of `collection` and invokes `iteratee` for each element.\n     * The iteratee is invoked with three arguments: (value, index|key, collection).\n     * Iteratee functions may exit iteration early by explicitly returning `false`.\n     *\n     * **Note:** As with other \"Collections\" methods, objects with a \"length\"\n     * property are iterated like arrays. To avoid this behavior use `_.forIn`\n     * or `_.forOwn` for object iteration.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @alias each\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array|Object} Returns `collection`.\n     * @see _.forEachRight\n     * @example\n     *\n     * _.forEach([1, 2], function(value) {\n     *   console.log(value);\n     * });\n     * // => Logs `1` then `2`.\n     *\n     * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n     */\n\n\n    function forEach(collection, iteratee) {\n      var func = isArray(collection) ? arrayEach : baseEach;\n      return func(collection, getIteratee(iteratee, 3));\n    }\n    /**\n     * This method is like `_.forEach` except that it iterates over elements of\n     * `collection` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @alias eachRight\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array|Object} Returns `collection`.\n     * @see _.forEach\n     * @example\n     *\n     * _.forEachRight([1, 2], function(value) {\n     *   console.log(value);\n     * });\n     * // => Logs `2` then `1`.\n     */\n\n\n    function forEachRight(collection, iteratee) {\n      var func = isArray(collection) ? arrayEachRight : baseEachRight;\n      return func(collection, getIteratee(iteratee, 3));\n    }\n    /**\n     * Creates an object composed of keys generated from the results of running\n     * each element of `collection` thru `iteratee`. The order of grouped values\n     * is determined by the order they occur in `collection`. The corresponding\n     * value of each key is an array of elements responsible for generating the\n     * key. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n     * @returns {Object} Returns the composed aggregate object.\n     * @example\n     *\n     * _.groupBy([6.1, 4.2, 6.3], Math.floor);\n     * // => { '4': [4.2], '6': [6.1, 6.3] }\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.groupBy(['one', 'two', 'three'], 'length');\n     * // => { '3': ['one', 'two'], '5': ['three'] }\n     */\n\n\n    var groupBy = createAggregator(function (result, value, key) {\n      if (hasOwnProperty.call(result, key)) {\n        result[key].push(value);\n      } else {\n        baseAssignValue(result, key, [value]);\n      }\n    });\n    /**\n     * Checks if `value` is in `collection`. If `collection` is a string, it's\n     * checked for a substring of `value`, otherwise\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * is used for equality comparisons. If `fromIndex` is negative, it's used as\n     * the offset from the end of `collection`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object|string} collection The collection to inspect.\n     * @param {*} value The value to search for.\n     * @param {number} [fromIndex=0] The index to search from.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n     * @returns {boolean} Returns `true` if `value` is found, else `false`.\n     * @example\n     *\n     * _.includes([1, 2, 3], 1);\n     * // => true\n     *\n     * _.includes([1, 2, 3], 1, 2);\n     * // => false\n     *\n     * _.includes({ 'a': 1, 'b': 2 }, 1);\n     * // => true\n     *\n     * _.includes('abcd', 'bc');\n     * // => true\n     */\n\n    function includes(collection, value, fromIndex, guard) {\n      collection = isArrayLike(collection) ? collection : values(collection);\n      fromIndex = fromIndex && !guard ? toInteger(fromIndex) : 0;\n      var length = collection.length;\n\n      if (fromIndex < 0) {\n        fromIndex = nativeMax(length + fromIndex, 0);\n      }\n\n      return isString(collection) ? fromIndex <= length && collection.indexOf(value, fromIndex) > -1 : !!length && baseIndexOf(collection, value, fromIndex) > -1;\n    }\n    /**\n     * Invokes the method at `path` of each element in `collection`, returning\n     * an array of the results of each invoked method. Any additional arguments\n     * are provided to each invoked method. If `path` is a function, it's invoked\n     * for, and `this` bound to, each element in `collection`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Array|Function|string} path The path of the method to invoke or\n     *  the function invoked per iteration.\n     * @param {...*} [args] The arguments to invoke each method with.\n     * @returns {Array} Returns the array of results.\n     * @example\n     *\n     * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');\n     * // => [[1, 5, 7], [1, 2, 3]]\n     *\n     * _.invokeMap([123, 456], String.prototype.split, '');\n     * // => [['1', '2', '3'], ['4', '5', '6']]\n     */\n\n\n    var invokeMap = baseRest(function (collection, path, args) {\n      var index = -1,\n          isFunc = typeof path == 'function',\n          result = isArrayLike(collection) ? Array(collection.length) : [];\n      baseEach(collection, function (value) {\n        result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);\n      });\n      return result;\n    });\n    /**\n     * Creates an object composed of keys generated from the results of running\n     * each element of `collection` thru `iteratee`. The corresponding value of\n     * each key is the last element responsible for generating the key. The\n     * iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n     * @returns {Object} Returns the composed aggregate object.\n     * @example\n     *\n     * var array = [\n     *   { 'dir': 'left', 'code': 97 },\n     *   { 'dir': 'right', 'code': 100 }\n     * ];\n     *\n     * _.keyBy(array, function(o) {\n     *   return String.fromCharCode(o.code);\n     * });\n     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }\n     *\n     * _.keyBy(array, 'dir');\n     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }\n     */\n\n    var keyBy = createAggregator(function (result, value, key) {\n      baseAssignValue(result, key, value);\n    });\n    /**\n     * Creates an array of values by running each element in `collection` thru\n     * `iteratee`. The iteratee is invoked with three arguments:\n     * (value, index|key, collection).\n     *\n     * Many lodash methods are guarded to work as iteratees for methods like\n     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.\n     *\n     * The guarded methods are:\n     * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,\n     * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,\n     * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,\n     * `template`, `trim`, `trimEnd`, `trimStart`, and `words`\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new mapped array.\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * _.map([4, 8], square);\n     * // => [16, 64]\n     *\n     * _.map({ 'a': 4, 'b': 8 }, square);\n     * // => [16, 64] (iteration order is not guaranteed)\n     *\n     * var users = [\n     *   { 'user': 'barney' },\n     *   { 'user': 'fred' }\n     * ];\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.map(users, 'user');\n     * // => ['barney', 'fred']\n     */\n\n    function map(collection, iteratee) {\n      var func = isArray(collection) ? arrayMap : baseMap;\n      return func(collection, getIteratee(iteratee, 3));\n    }\n    /**\n     * This method is like `_.sortBy` except that it allows specifying the sort\n     * orders of the iteratees to sort by. If `orders` is unspecified, all values\n     * are sorted in ascending order. Otherwise, specify an order of \"desc\" for\n     * descending or \"asc\" for ascending sort order of corresponding values.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]\n     *  The iteratees to sort by.\n     * @param {string[]} [orders] The sort orders of `iteratees`.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n     * @returns {Array} Returns the new sorted array.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'fred',   'age': 48 },\n     *   { 'user': 'barney', 'age': 34 },\n     *   { 'user': 'fred',   'age': 40 },\n     *   { 'user': 'barney', 'age': 36 }\n     * ];\n     *\n     * // Sort by `user` in ascending order and by `age` in descending order.\n     * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);\n     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]\n     */\n\n\n    function orderBy(collection, iteratees, orders, guard) {\n      if (collection == null) {\n        return [];\n      }\n\n      if (!isArray(iteratees)) {\n        iteratees = iteratees == null ? [] : [iteratees];\n      }\n\n      orders = guard ? undefined : orders;\n\n      if (!isArray(orders)) {\n        orders = orders == null ? [] : [orders];\n      }\n\n      return baseOrderBy(collection, iteratees, orders);\n    }\n    /**\n     * Creates an array of elements split into two groups, the first of which\n     * contains elements `predicate` returns truthy for, the second of which\n     * contains elements `predicate` returns falsey for. The predicate is\n     * invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the array of grouped elements.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'age': 36, 'active': false },\n     *   { 'user': 'fred',    'age': 40, 'active': true },\n     *   { 'user': 'pebbles', 'age': 1,  'active': false }\n     * ];\n     *\n     * _.partition(users, function(o) { return o.active; });\n     * // => objects for [['fred'], ['barney', 'pebbles']]\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.partition(users, { 'age': 1, 'active': false });\n     * // => objects for [['pebbles'], ['barney', 'fred']]\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.partition(users, ['active', false]);\n     * // => objects for [['barney', 'pebbles'], ['fred']]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.partition(users, 'active');\n     * // => objects for [['fred'], ['barney', 'pebbles']]\n     */\n\n\n    var partition = createAggregator(function (result, value, key) {\n      result[key ? 0 : 1].push(value);\n    }, function () {\n      return [[], []];\n    });\n    /**\n     * Reduces `collection` to a value which is the accumulated result of running\n     * each element in `collection` thru `iteratee`, where each successive\n     * invocation is supplied the return value of the previous. If `accumulator`\n     * is not given, the first element of `collection` is used as the initial\n     * value. The iteratee is invoked with four arguments:\n     * (accumulator, value, index|key, collection).\n     *\n     * Many lodash methods are guarded to work as iteratees for methods like\n     * `_.reduce`, `_.reduceRight`, and `_.transform`.\n     *\n     * The guarded methods are:\n     * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,\n     * and `sortBy`\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @param {*} [accumulator] The initial value.\n     * @returns {*} Returns the accumulated value.\n     * @see _.reduceRight\n     * @example\n     *\n     * _.reduce([1, 2], function(sum, n) {\n     *   return sum + n;\n     * }, 0);\n     * // => 3\n     *\n     * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n     *   (result[value] || (result[value] = [])).push(key);\n     *   return result;\n     * }, {});\n     * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)\n     */\n\n    function reduce(collection, iteratee, accumulator) {\n      var func = isArray(collection) ? arrayReduce : baseReduce,\n          initAccum = arguments.length < 3;\n      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);\n    }\n    /**\n     * This method is like `_.reduce` except that it iterates over elements of\n     * `collection` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @param {*} [accumulator] The initial value.\n     * @returns {*} Returns the accumulated value.\n     * @see _.reduce\n     * @example\n     *\n     * var array = [[0, 1], [2, 3], [4, 5]];\n     *\n     * _.reduceRight(array, function(flattened, other) {\n     *   return flattened.concat(other);\n     * }, []);\n     * // => [4, 5, 2, 3, 0, 1]\n     */\n\n\n    function reduceRight(collection, iteratee, accumulator) {\n      var func = isArray(collection) ? arrayReduceRight : baseReduce,\n          initAccum = arguments.length < 3;\n      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);\n    }\n    /**\n     * The opposite of `_.filter`; this method returns the elements of `collection`\n     * that `predicate` does **not** return truthy for.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new filtered array.\n     * @see _.filter\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36, 'active': false },\n     *   { 'user': 'fred',   'age': 40, 'active': true }\n     * ];\n     *\n     * _.reject(users, function(o) { return !o.active; });\n     * // => objects for ['fred']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.reject(users, { 'age': 40, 'active': true });\n     * // => objects for ['barney']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.reject(users, ['active', false]);\n     * // => objects for ['fred']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.reject(users, 'active');\n     * // => objects for ['barney']\n     */\n\n\n    function reject(collection, predicate) {\n      var func = isArray(collection) ? arrayFilter : baseFilter;\n      return func(collection, negate(getIteratee(predicate, 3)));\n    }\n    /**\n     * Gets a random element from `collection`.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to sample.\n     * @returns {*} Returns the random element.\n     * @example\n     *\n     * _.sample([1, 2, 3, 4]);\n     * // => 2\n     */\n\n\n    function sample(collection) {\n      var func = isArray(collection) ? arraySample : baseSample;\n      return func(collection);\n    }\n    /**\n     * Gets `n` random elements at unique keys from `collection` up to the\n     * size of `collection`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to sample.\n     * @param {number} [n=1] The number of elements to sample.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the random elements.\n     * @example\n     *\n     * _.sampleSize([1, 2, 3], 2);\n     * // => [3, 1]\n     *\n     * _.sampleSize([1, 2, 3], 4);\n     * // => [2, 3, 1]\n     */\n\n\n    function sampleSize(collection, n, guard) {\n      if (guard ? isIterateeCall(collection, n, guard) : n === undefined) {\n        n = 1;\n      } else {\n        n = toInteger(n);\n      }\n\n      var func = isArray(collection) ? arraySampleSize : baseSampleSize;\n      return func(collection, n);\n    }\n    /**\n     * Creates an array of shuffled values, using a version of the\n     * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to shuffle.\n     * @returns {Array} Returns the new shuffled array.\n     * @example\n     *\n     * _.shuffle([1, 2, 3, 4]);\n     * // => [4, 1, 3, 2]\n     */\n\n\n    function shuffle(collection) {\n      var func = isArray(collection) ? arrayShuffle : baseShuffle;\n      return func(collection);\n    }\n    /**\n     * Gets the size of `collection` by returning its length for array-like\n     * values or the number of own enumerable string keyed properties for objects.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object|string} collection The collection to inspect.\n     * @returns {number} Returns the collection size.\n     * @example\n     *\n     * _.size([1, 2, 3]);\n     * // => 3\n     *\n     * _.size({ 'a': 1, 'b': 2 });\n     * // => 2\n     *\n     * _.size('pebbles');\n     * // => 7\n     */\n\n\n    function size(collection) {\n      if (collection == null) {\n        return 0;\n      }\n\n      if (isArrayLike(collection)) {\n        return isString(collection) ? stringSize(collection) : collection.length;\n      }\n\n      var tag = getTag(collection);\n\n      if (tag == mapTag || tag == setTag) {\n        return collection.size;\n      }\n\n      return baseKeys(collection).length;\n    }\n    /**\n     * Checks if `predicate` returns truthy for **any** element of `collection`.\n     * Iteration is stopped once `predicate` returns truthy. The predicate is\n     * invoked with three arguments: (value, index|key, collection).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {boolean} Returns `true` if any element passes the predicate check,\n     *  else `false`.\n     * @example\n     *\n     * _.some([null, 0, 'yes', false], Boolean);\n     * // => true\n     *\n     * var users = [\n     *   { 'user': 'barney', 'active': true },\n     *   { 'user': 'fred',   'active': false }\n     * ];\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.some(users, { 'user': 'barney', 'active': false });\n     * // => false\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.some(users, ['active', false]);\n     * // => true\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.some(users, 'active');\n     * // => true\n     */\n\n\n    function some(collection, predicate, guard) {\n      var func = isArray(collection) ? arraySome : baseSome;\n\n      if (guard && isIterateeCall(collection, predicate, guard)) {\n        predicate = undefined;\n      }\n\n      return func(collection, getIteratee(predicate, 3));\n    }\n    /**\n     * Creates an array of elements, sorted in ascending order by the results of\n     * running each element in a collection thru each iteratee. This method\n     * performs a stable sort, that is, it preserves the original sort order of\n     * equal elements. The iteratees are invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {...(Function|Function[])} [iteratees=[_.identity]]\n     *  The iteratees to sort by.\n     * @returns {Array} Returns the new sorted array.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'fred',   'age': 48 },\n     *   { 'user': 'barney', 'age': 36 },\n     *   { 'user': 'fred',   'age': 30 },\n     *   { 'user': 'barney', 'age': 34 }\n     * ];\n     *\n     * _.sortBy(users, [function(o) { return o.user; }]);\n     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]\n     *\n     * _.sortBy(users, ['user', 'age']);\n     * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]\n     */\n\n\n    var sortBy = baseRest(function (collection, iteratees) {\n      if (collection == null) {\n        return [];\n      }\n\n      var length = iteratees.length;\n\n      if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {\n        iteratees = [];\n      } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {\n        iteratees = [iteratees[0]];\n      }\n\n      return baseOrderBy(collection, baseFlatten(iteratees, 1), []);\n    });\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Gets the timestamp of the number of milliseconds that have elapsed since\n     * the Unix epoch (1 January 1970 00:00:00 UTC).\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Date\n     * @returns {number} Returns the timestamp.\n     * @example\n     *\n     * _.defer(function(stamp) {\n     *   console.log(_.now() - stamp);\n     * }, _.now());\n     * // => Logs the number of milliseconds it took for the deferred invocation.\n     */\n\n    var now = ctxNow || function () {\n      return root.Date.now();\n    };\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * The opposite of `_.before`; this method creates a function that invokes\n     * `func` once it's called `n` or more times.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {number} n The number of calls before `func` is invoked.\n     * @param {Function} func The function to restrict.\n     * @returns {Function} Returns the new restricted function.\n     * @example\n     *\n     * var saves = ['profile', 'settings'];\n     *\n     * var done = _.after(saves.length, function() {\n     *   console.log('done saving!');\n     * });\n     *\n     * _.forEach(saves, function(type) {\n     *   asyncSave({ 'type': type, 'complete': done });\n     * });\n     * // => Logs 'done saving!' after the two async saves have completed.\n     */\n\n\n    function after(n, func) {\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n\n      n = toInteger(n);\n      return function () {\n        if (--n < 1) {\n          return func.apply(this, arguments);\n        }\n      };\n    }\n    /**\n     * Creates a function that invokes `func`, with up to `n` arguments,\n     * ignoring any additional arguments.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {Function} func The function to cap arguments for.\n     * @param {number} [n=func.length] The arity cap.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Function} Returns the new capped function.\n     * @example\n     *\n     * _.map(['6', '8', '10'], _.ary(parseInt, 1));\n     * // => [6, 8, 10]\n     */\n\n\n    function ary(func, n, guard) {\n      n = guard ? undefined : n;\n      n = func && n == null ? func.length : n;\n      return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);\n    }\n    /**\n     * Creates a function that invokes `func`, with the `this` binding and arguments\n     * of the created function, while it's called less than `n` times. Subsequent\n     * calls to the created function return the result of the last `func` invocation.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {number} n The number of calls at which `func` is no longer invoked.\n     * @param {Function} func The function to restrict.\n     * @returns {Function} Returns the new restricted function.\n     * @example\n     *\n     * jQuery(element).on('click', _.before(5, addContactToList));\n     * // => Allows adding up to 4 contacts to the list.\n     */\n\n\n    function before(n, func) {\n      var result;\n\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n\n      n = toInteger(n);\n      return function () {\n        if (--n > 0) {\n          result = func.apply(this, arguments);\n        }\n\n        if (n <= 1) {\n          func = undefined;\n        }\n\n        return result;\n      };\n    }\n    /**\n     * Creates a function that invokes `func` with the `this` binding of `thisArg`\n     * and `partials` prepended to the arguments it receives.\n     *\n     * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,\n     * may be used as a placeholder for partially applied arguments.\n     *\n     * **Note:** Unlike native `Function#bind`, this method doesn't set the \"length\"\n     * property of bound functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to bind.\n     * @param {*} thisArg The `this` binding of `func`.\n     * @param {...*} [partials] The arguments to be partially applied.\n     * @returns {Function} Returns the new bound function.\n     * @example\n     *\n     * function greet(greeting, punctuation) {\n     *   return greeting + ' ' + this.user + punctuation;\n     * }\n     *\n     * var object = { 'user': 'fred' };\n     *\n     * var bound = _.bind(greet, object, 'hi');\n     * bound('!');\n     * // => 'hi fred!'\n     *\n     * // Bound with placeholders.\n     * var bound = _.bind(greet, object, _, '!');\n     * bound('hi');\n     * // => 'hi fred!'\n     */\n\n\n    var bind = baseRest(function (func, thisArg, partials) {\n      var bitmask = WRAP_BIND_FLAG;\n\n      if (partials.length) {\n        var holders = replaceHolders(partials, getHolder(bind));\n        bitmask |= WRAP_PARTIAL_FLAG;\n      }\n\n      return createWrap(func, bitmask, thisArg, partials, holders);\n    });\n    /**\n     * Creates a function that invokes the method at `object[key]` with `partials`\n     * prepended to the arguments it receives.\n     *\n     * This method differs from `_.bind` by allowing bound functions to reference\n     * methods that may be redefined or don't yet exist. See\n     * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)\n     * for more details.\n     *\n     * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic\n     * builds, may be used as a placeholder for partially applied arguments.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.10.0\n     * @category Function\n     * @param {Object} object The object to invoke the method on.\n     * @param {string} key The key of the method.\n     * @param {...*} [partials] The arguments to be partially applied.\n     * @returns {Function} Returns the new bound function.\n     * @example\n     *\n     * var object = {\n     *   'user': 'fred',\n     *   'greet': function(greeting, punctuation) {\n     *     return greeting + ' ' + this.user + punctuation;\n     *   }\n     * };\n     *\n     * var bound = _.bindKey(object, 'greet', 'hi');\n     * bound('!');\n     * // => 'hi fred!'\n     *\n     * object.greet = function(greeting, punctuation) {\n     *   return greeting + 'ya ' + this.user + punctuation;\n     * };\n     *\n     * bound('!');\n     * // => 'hiya fred!'\n     *\n     * // Bound with placeholders.\n     * var bound = _.bindKey(object, 'greet', _, '!');\n     * bound('hi');\n     * // => 'hiya fred!'\n     */\n\n    var bindKey = baseRest(function (object, key, partials) {\n      var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;\n\n      if (partials.length) {\n        var holders = replaceHolders(partials, getHolder(bindKey));\n        bitmask |= WRAP_PARTIAL_FLAG;\n      }\n\n      return createWrap(key, bitmask, object, partials, holders);\n    });\n    /**\n     * Creates a function that accepts arguments of `func` and either invokes\n     * `func` returning its result, if at least `arity` number of arguments have\n     * been provided, or returns a function that accepts the remaining `func`\n     * arguments, and so on. The arity of `func` may be specified if `func.length`\n     * is not sufficient.\n     *\n     * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,\n     * may be used as a placeholder for provided arguments.\n     *\n     * **Note:** This method doesn't set the \"length\" property of curried functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Function\n     * @param {Function} func The function to curry.\n     * @param {number} [arity=func.length] The arity of `func`.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Function} Returns the new curried function.\n     * @example\n     *\n     * var abc = function(a, b, c) {\n     *   return [a, b, c];\n     * };\n     *\n     * var curried = _.curry(abc);\n     *\n     * curried(1)(2)(3);\n     * // => [1, 2, 3]\n     *\n     * curried(1, 2)(3);\n     * // => [1, 2, 3]\n     *\n     * curried(1, 2, 3);\n     * // => [1, 2, 3]\n     *\n     * // Curried with placeholders.\n     * curried(1)(_, 3)(2);\n     * // => [1, 2, 3]\n     */\n\n    function curry(func, arity, guard) {\n      arity = guard ? undefined : arity;\n      var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n      result.placeholder = curry.placeholder;\n      return result;\n    }\n    /**\n     * This method is like `_.curry` except that arguments are applied to `func`\n     * in the manner of `_.partialRight` instead of `_.partial`.\n     *\n     * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic\n     * builds, may be used as a placeholder for provided arguments.\n     *\n     * **Note:** This method doesn't set the \"length\" property of curried functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {Function} func The function to curry.\n     * @param {number} [arity=func.length] The arity of `func`.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Function} Returns the new curried function.\n     * @example\n     *\n     * var abc = function(a, b, c) {\n     *   return [a, b, c];\n     * };\n     *\n     * var curried = _.curryRight(abc);\n     *\n     * curried(3)(2)(1);\n     * // => [1, 2, 3]\n     *\n     * curried(2, 3)(1);\n     * // => [1, 2, 3]\n     *\n     * curried(1, 2, 3);\n     * // => [1, 2, 3]\n     *\n     * // Curried with placeholders.\n     * curried(3)(1, _)(2);\n     * // => [1, 2, 3]\n     */\n\n\n    function curryRight(func, arity, guard) {\n      arity = guard ? undefined : arity;\n      var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n      result.placeholder = curryRight.placeholder;\n      return result;\n    }\n    /**\n     * Creates a debounced function that delays invoking `func` until after `wait`\n     * milliseconds have elapsed since the last time the debounced function was\n     * invoked. The debounced function comes with a `cancel` method to cancel\n     * delayed `func` invocations and a `flush` method to immediately invoke them.\n     * Provide `options` to indicate whether `func` should be invoked on the\n     * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n     * with the last arguments provided to the debounced function. Subsequent\n     * calls to the debounced function return the result of the last `func`\n     * invocation.\n     *\n     * **Note:** If `leading` and `trailing` options are `true`, `func` is\n     * invoked on the trailing edge of the timeout only if the debounced function\n     * is invoked more than once during the `wait` timeout.\n     *\n     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n     * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n     *\n     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n     * for details over the differences between `_.debounce` and `_.throttle`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to debounce.\n     * @param {number} [wait=0] The number of milliseconds to delay.\n     * @param {Object} [options={}] The options object.\n     * @param {boolean} [options.leading=false]\n     *  Specify invoking on the leading edge of the timeout.\n     * @param {number} [options.maxWait]\n     *  The maximum time `func` is allowed to be delayed before it's invoked.\n     * @param {boolean} [options.trailing=true]\n     *  Specify invoking on the trailing edge of the timeout.\n     * @returns {Function} Returns the new debounced function.\n     * @example\n     *\n     * // Avoid costly calculations while the window size is in flux.\n     * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n     *\n     * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n     * jQuery(element).on('click', _.debounce(sendMail, 300, {\n     *   'leading': true,\n     *   'trailing': false\n     * }));\n     *\n     * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n     * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n     * var source = new EventSource('/stream');\n     * jQuery(source).on('message', debounced);\n     *\n     * // Cancel the trailing debounced invocation.\n     * jQuery(window).on('popstate', debounced.cancel);\n     */\n\n\n    function debounce(func, wait, options) {\n      var lastArgs,\n          lastThis,\n          maxWait,\n          result,\n          timerId,\n          lastCallTime,\n          lastInvokeTime = 0,\n          leading = false,\n          maxing = false,\n          trailing = true;\n\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n\n      wait = toNumber(wait) || 0;\n\n      if (isObject(options)) {\n        leading = !!options.leading;\n        maxing = 'maxWait' in options;\n        maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n        trailing = 'trailing' in options ? !!options.trailing : trailing;\n      }\n\n      function invokeFunc(time) {\n        var args = lastArgs,\n            thisArg = lastThis;\n        lastArgs = lastThis = undefined;\n        lastInvokeTime = time;\n        result = func.apply(thisArg, args);\n        return result;\n      }\n\n      function leadingEdge(time) {\n        // Reset any `maxWait` timer.\n        lastInvokeTime = time; // Start the timer for the trailing edge.\n\n        timerId = setTimeout(timerExpired, wait); // Invoke the leading edge.\n\n        return leading ? invokeFunc(time) : result;\n      }\n\n      function remainingWait(time) {\n        var timeSinceLastCall = time - lastCallTime,\n            timeSinceLastInvoke = time - lastInvokeTime,\n            timeWaiting = wait - timeSinceLastCall;\n        return maxing ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) : timeWaiting;\n      }\n\n      function shouldInvoke(time) {\n        var timeSinceLastCall = time - lastCallTime,\n            timeSinceLastInvoke = time - lastInvokeTime; // Either this is the first call, activity has stopped and we're at the\n        // trailing edge, the system time has gone backwards and we're treating\n        // it as the trailing edge, or we've hit the `maxWait` limit.\n\n        return lastCallTime === undefined || timeSinceLastCall >= wait || timeSinceLastCall < 0 || maxing && timeSinceLastInvoke >= maxWait;\n      }\n\n      function timerExpired() {\n        var time = now();\n\n        if (shouldInvoke(time)) {\n          return trailingEdge(time);\n        } // Restart the timer.\n\n\n        timerId = setTimeout(timerExpired, remainingWait(time));\n      }\n\n      function trailingEdge(time) {\n        timerId = undefined; // Only invoke if we have `lastArgs` which means `func` has been\n        // debounced at least once.\n\n        if (trailing && lastArgs) {\n          return invokeFunc(time);\n        }\n\n        lastArgs = lastThis = undefined;\n        return result;\n      }\n\n      function cancel() {\n        if (timerId !== undefined) {\n          clearTimeout(timerId);\n        }\n\n        lastInvokeTime = 0;\n        lastArgs = lastCallTime = lastThis = timerId = undefined;\n      }\n\n      function flush() {\n        return timerId === undefined ? result : trailingEdge(now());\n      }\n\n      function debounced() {\n        var time = now(),\n            isInvoking = shouldInvoke(time);\n        lastArgs = arguments;\n        lastThis = this;\n        lastCallTime = time;\n\n        if (isInvoking) {\n          if (timerId === undefined) {\n            return leadingEdge(lastCallTime);\n          }\n\n          if (maxing) {\n            // Handle invocations in a tight loop.\n            clearTimeout(timerId);\n            timerId = setTimeout(timerExpired, wait);\n            return invokeFunc(lastCallTime);\n          }\n        }\n\n        if (timerId === undefined) {\n          timerId = setTimeout(timerExpired, wait);\n        }\n\n        return result;\n      }\n\n      debounced.cancel = cancel;\n      debounced.flush = flush;\n      return debounced;\n    }\n    /**\n     * Defers invoking the `func` until the current call stack has cleared. Any\n     * additional arguments are provided to `func` when it's invoked.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to defer.\n     * @param {...*} [args] The arguments to invoke `func` with.\n     * @returns {number} Returns the timer id.\n     * @example\n     *\n     * _.defer(function(text) {\n     *   console.log(text);\n     * }, 'deferred');\n     * // => Logs 'deferred' after one millisecond.\n     */\n\n\n    var defer = baseRest(function (func, args) {\n      return baseDelay(func, 1, args);\n    });\n    /**\n     * Invokes `func` after `wait` milliseconds. Any additional arguments are\n     * provided to `func` when it's invoked.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to delay.\n     * @param {number} wait The number of milliseconds to delay invocation.\n     * @param {...*} [args] The arguments to invoke `func` with.\n     * @returns {number} Returns the timer id.\n     * @example\n     *\n     * _.delay(function(text) {\n     *   console.log(text);\n     * }, 1000, 'later');\n     * // => Logs 'later' after one second.\n     */\n\n    var delay = baseRest(function (func, wait, args) {\n      return baseDelay(func, toNumber(wait) || 0, args);\n    });\n    /**\n     * Creates a function that invokes `func` with arguments reversed.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Function\n     * @param {Function} func The function to flip arguments for.\n     * @returns {Function} Returns the new flipped function.\n     * @example\n     *\n     * var flipped = _.flip(function() {\n     *   return _.toArray(arguments);\n     * });\n     *\n     * flipped('a', 'b', 'c', 'd');\n     * // => ['d', 'c', 'b', 'a']\n     */\n\n    function flip(func) {\n      return createWrap(func, WRAP_FLIP_FLAG);\n    }\n    /**\n     * Creates a function that memoizes the result of `func`. If `resolver` is\n     * provided, it determines the cache key for storing the result based on the\n     * arguments provided to the memoized function. By default, the first argument\n     * provided to the memoized function is used as the map cache key. The `func`\n     * is invoked with the `this` binding of the memoized function.\n     *\n     * **Note:** The cache is exposed as the `cache` property on the memoized\n     * function. Its creation may be customized by replacing the `_.memoize.Cache`\n     * constructor with one whose instances implement the\n     * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n     * method interface of `clear`, `delete`, `get`, `has`, and `set`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to have its output memoized.\n     * @param {Function} [resolver] The function to resolve the cache key.\n     * @returns {Function} Returns the new memoized function.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2 };\n     * var other = { 'c': 3, 'd': 4 };\n     *\n     * var values = _.memoize(_.values);\n     * values(object);\n     * // => [1, 2]\n     *\n     * values(other);\n     * // => [3, 4]\n     *\n     * object.a = 2;\n     * values(object);\n     * // => [1, 2]\n     *\n     * // Modify the result cache.\n     * values.cache.set(object, ['a', 'b']);\n     * values(object);\n     * // => ['a', 'b']\n     *\n     * // Replace `_.memoize.Cache`.\n     * _.memoize.Cache = WeakMap;\n     */\n\n\n    function memoize(func, resolver) {\n      if (typeof func != 'function' || resolver != null && typeof resolver != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n\n      var memoized = function memoized() {\n        var args = arguments,\n            key = resolver ? resolver.apply(this, args) : args[0],\n            cache = memoized.cache;\n\n        if (cache.has(key)) {\n          return cache.get(key);\n        }\n\n        var result = func.apply(this, args);\n        memoized.cache = cache.set(key, result) || cache;\n        return result;\n      };\n\n      memoized.cache = new (memoize.Cache || MapCache)();\n      return memoized;\n    } // Expose `MapCache`.\n\n\n    memoize.Cache = MapCache;\n    /**\n     * Creates a function that negates the result of the predicate `func`. The\n     * `func` predicate is invoked with the `this` binding and arguments of the\n     * created function.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {Function} predicate The predicate to negate.\n     * @returns {Function} Returns the new negated function.\n     * @example\n     *\n     * function isEven(n) {\n     *   return n % 2 == 0;\n     * }\n     *\n     * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));\n     * // => [1, 3, 5]\n     */\n\n    function negate(predicate) {\n      if (typeof predicate != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n\n      return function () {\n        var args = arguments;\n\n        switch (args.length) {\n          case 0:\n            return !predicate.call(this);\n\n          case 1:\n            return !predicate.call(this, args[0]);\n\n          case 2:\n            return !predicate.call(this, args[0], args[1]);\n\n          case 3:\n            return !predicate.call(this, args[0], args[1], args[2]);\n        }\n\n        return !predicate.apply(this, args);\n      };\n    }\n    /**\n     * Creates a function that is restricted to invoking `func` once. Repeat calls\n     * to the function return the value of the first invocation. The `func` is\n     * invoked with the `this` binding and arguments of the created function.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to restrict.\n     * @returns {Function} Returns the new restricted function.\n     * @example\n     *\n     * var initialize = _.once(createApplication);\n     * initialize();\n     * initialize();\n     * // => `createApplication` is invoked once\n     */\n\n\n    function once(func) {\n      return before(2, func);\n    }\n    /**\n     * Creates a function that invokes `func` with its arguments transformed.\n     *\n     * @static\n     * @since 4.0.0\n     * @memberOf _\n     * @category Function\n     * @param {Function} func The function to wrap.\n     * @param {...(Function|Function[])} [transforms=[_.identity]]\n     *  The argument transforms.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * function doubled(n) {\n     *   return n * 2;\n     * }\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var func = _.overArgs(function(x, y) {\n     *   return [x, y];\n     * }, [square, doubled]);\n     *\n     * func(9, 3);\n     * // => [81, 6]\n     *\n     * func(10, 5);\n     * // => [100, 10]\n     */\n\n\n    var overArgs = castRest(function (func, transforms) {\n      transforms = transforms.length == 1 && isArray(transforms[0]) ? arrayMap(transforms[0], baseUnary(getIteratee())) : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));\n      var funcsLength = transforms.length;\n      return baseRest(function (args) {\n        var index = -1,\n            length = nativeMin(args.length, funcsLength);\n\n        while (++index < length) {\n          args[index] = transforms[index].call(this, args[index]);\n        }\n\n        return apply(func, this, args);\n      });\n    });\n    /**\n     * Creates a function that invokes `func` with `partials` prepended to the\n     * arguments it receives. This method is like `_.bind` except it does **not**\n     * alter the `this` binding.\n     *\n     * The `_.partial.placeholder` value, which defaults to `_` in monolithic\n     * builds, may be used as a placeholder for partially applied arguments.\n     *\n     * **Note:** This method doesn't set the \"length\" property of partially\n     * applied functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.2.0\n     * @category Function\n     * @param {Function} func The function to partially apply arguments to.\n     * @param {...*} [partials] The arguments to be partially applied.\n     * @returns {Function} Returns the new partially applied function.\n     * @example\n     *\n     * function greet(greeting, name) {\n     *   return greeting + ' ' + name;\n     * }\n     *\n     * var sayHelloTo = _.partial(greet, 'hello');\n     * sayHelloTo('fred');\n     * // => 'hello fred'\n     *\n     * // Partially applied with placeholders.\n     * var greetFred = _.partial(greet, _, 'fred');\n     * greetFred('hi');\n     * // => 'hi fred'\n     */\n\n    var partial = baseRest(function (func, partials) {\n      var holders = replaceHolders(partials, getHolder(partial));\n      return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);\n    });\n    /**\n     * This method is like `_.partial` except that partially applied arguments\n     * are appended to the arguments it receives.\n     *\n     * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic\n     * builds, may be used as a placeholder for partially applied arguments.\n     *\n     * **Note:** This method doesn't set the \"length\" property of partially\n     * applied functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.0.0\n     * @category Function\n     * @param {Function} func The function to partially apply arguments to.\n     * @param {...*} [partials] The arguments to be partially applied.\n     * @returns {Function} Returns the new partially applied function.\n     * @example\n     *\n     * function greet(greeting, name) {\n     *   return greeting + ' ' + name;\n     * }\n     *\n     * var greetFred = _.partialRight(greet, 'fred');\n     * greetFred('hi');\n     * // => 'hi fred'\n     *\n     * // Partially applied with placeholders.\n     * var sayHelloTo = _.partialRight(greet, 'hello', _);\n     * sayHelloTo('fred');\n     * // => 'hello fred'\n     */\n\n    var partialRight = baseRest(function (func, partials) {\n      var holders = replaceHolders(partials, getHolder(partialRight));\n      return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);\n    });\n    /**\n     * Creates a function that invokes `func` with arguments arranged according\n     * to the specified `indexes` where the argument value at the first index is\n     * provided as the first argument, the argument value at the second index is\n     * provided as the second argument, and so on.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {Function} func The function to rearrange arguments for.\n     * @param {...(number|number[])} indexes The arranged argument indexes.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var rearged = _.rearg(function(a, b, c) {\n     *   return [a, b, c];\n     * }, [2, 0, 1]);\n     *\n     * rearged('b', 'c', 'a')\n     * // => ['a', 'b', 'c']\n     */\n\n    var rearg = flatRest(function (func, indexes) {\n      return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);\n    });\n    /**\n     * Creates a function that invokes `func` with the `this` binding of the\n     * created function and arguments from `start` and beyond provided as\n     * an array.\n     *\n     * **Note:** This method is based on the\n     * [rest parameter](https://mdn.io/rest_parameters).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Function\n     * @param {Function} func The function to apply a rest parameter to.\n     * @param {number} [start=func.length-1] The start position of the rest parameter.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var say = _.rest(function(what, names) {\n     *   return what + ' ' + _.initial(names).join(', ') +\n     *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n     * });\n     *\n     * say('hello', 'fred', 'barney', 'pebbles');\n     * // => 'hello fred, barney, & pebbles'\n     */\n\n    function rest(func, start) {\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n\n      start = start === undefined ? start : toInteger(start);\n      return baseRest(func, start);\n    }\n    /**\n     * Creates a function that invokes `func` with the `this` binding of the\n     * create function and an array of arguments much like\n     * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).\n     *\n     * **Note:** This method is based on the\n     * [spread operator](https://mdn.io/spread_operator).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.2.0\n     * @category Function\n     * @param {Function} func The function to spread arguments over.\n     * @param {number} [start=0] The start position of the spread.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var say = _.spread(function(who, what) {\n     *   return who + ' says ' + what;\n     * });\n     *\n     * say(['fred', 'hello']);\n     * // => 'fred says hello'\n     *\n     * var numbers = Promise.all([\n     *   Promise.resolve(40),\n     *   Promise.resolve(36)\n     * ]);\n     *\n     * numbers.then(_.spread(function(x, y) {\n     *   return x + y;\n     * }));\n     * // => a Promise of 76\n     */\n\n\n    function spread(func, start) {\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n\n      start = start == null ? 0 : nativeMax(toInteger(start), 0);\n      return baseRest(function (args) {\n        var array = args[start],\n            otherArgs = castSlice(args, 0, start);\n\n        if (array) {\n          arrayPush(otherArgs, array);\n        }\n\n        return apply(func, this, otherArgs);\n      });\n    }\n    /**\n     * Creates a throttled function that only invokes `func` at most once per\n     * every `wait` milliseconds. The throttled function comes with a `cancel`\n     * method to cancel delayed `func` invocations and a `flush` method to\n     * immediately invoke them. Provide `options` to indicate whether `func`\n     * should be invoked on the leading and/or trailing edge of the `wait`\n     * timeout. The `func` is invoked with the last arguments provided to the\n     * throttled function. Subsequent calls to the throttled function return the\n     * result of the last `func` invocation.\n     *\n     * **Note:** If `leading` and `trailing` options are `true`, `func` is\n     * invoked on the trailing edge of the timeout only if the throttled function\n     * is invoked more than once during the `wait` timeout.\n     *\n     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n     * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n     *\n     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n     * for details over the differences between `_.throttle` and `_.debounce`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to throttle.\n     * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n     * @param {Object} [options={}] The options object.\n     * @param {boolean} [options.leading=true]\n     *  Specify invoking on the leading edge of the timeout.\n     * @param {boolean} [options.trailing=true]\n     *  Specify invoking on the trailing edge of the timeout.\n     * @returns {Function} Returns the new throttled function.\n     * @example\n     *\n     * // Avoid excessively updating the position while scrolling.\n     * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n     *\n     * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n     * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n     * jQuery(element).on('click', throttled);\n     *\n     * // Cancel the trailing throttled invocation.\n     * jQuery(window).on('popstate', throttled.cancel);\n     */\n\n\n    function throttle(func, wait, options) {\n      var leading = true,\n          trailing = true;\n\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n\n      if (isObject(options)) {\n        leading = 'leading' in options ? !!options.leading : leading;\n        trailing = 'trailing' in options ? !!options.trailing : trailing;\n      }\n\n      return debounce(func, wait, {\n        'leading': leading,\n        'maxWait': wait,\n        'trailing': trailing\n      });\n    }\n    /**\n     * Creates a function that accepts up to one argument, ignoring any\n     * additional arguments.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Function\n     * @param {Function} func The function to cap arguments for.\n     * @returns {Function} Returns the new capped function.\n     * @example\n     *\n     * _.map(['6', '8', '10'], _.unary(parseInt));\n     * // => [6, 8, 10]\n     */\n\n\n    function unary(func) {\n      return ary(func, 1);\n    }\n    /**\n     * Creates a function that provides `value` to `wrapper` as its first\n     * argument. Any additional arguments provided to the function are appended\n     * to those provided to the `wrapper`. The wrapper is invoked with the `this`\n     * binding of the created function.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {*} value The value to wrap.\n     * @param {Function} [wrapper=identity] The wrapper function.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var p = _.wrap(_.escape, function(func, text) {\n     *   return '<p>' + func(text) + '</p>';\n     * });\n     *\n     * p('fred, barney, & pebbles');\n     * // => '<p>fred, barney, &amp; pebbles</p>'\n     */\n\n\n    function wrap(value, wrapper) {\n      return partial(castFunction(wrapper), value);\n    }\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Casts `value` as an array if it's not one.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.4.0\n     * @category Lang\n     * @param {*} value The value to inspect.\n     * @returns {Array} Returns the cast array.\n     * @example\n     *\n     * _.castArray(1);\n     * // => [1]\n     *\n     * _.castArray({ 'a': 1 });\n     * // => [{ 'a': 1 }]\n     *\n     * _.castArray('abc');\n     * // => ['abc']\n     *\n     * _.castArray(null);\n     * // => [null]\n     *\n     * _.castArray(undefined);\n     * // => [undefined]\n     *\n     * _.castArray();\n     * // => []\n     *\n     * var array = [1, 2, 3];\n     * console.log(_.castArray(array) === array);\n     * // => true\n     */\n\n\n    function castArray() {\n      if (!arguments.length) {\n        return [];\n      }\n\n      var value = arguments[0];\n      return isArray(value) ? value : [value];\n    }\n    /**\n     * Creates a shallow clone of `value`.\n     *\n     * **Note:** This method is loosely based on the\n     * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n     * and supports cloning arrays, array buffers, booleans, date objects, maps,\n     * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n     * arrays. The own enumerable properties of `arguments` objects are cloned\n     * as plain objects. An empty object is returned for uncloneable values such\n     * as error objects, functions, DOM nodes, and WeakMaps.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to clone.\n     * @returns {*} Returns the cloned value.\n     * @see _.cloneDeep\n     * @example\n     *\n     * var objects = [{ 'a': 1 }, { 'b': 2 }];\n     *\n     * var shallow = _.clone(objects);\n     * console.log(shallow[0] === objects[0]);\n     * // => true\n     */\n\n\n    function clone(value) {\n      return baseClone(value, CLONE_SYMBOLS_FLAG);\n    }\n    /**\n     * This method is like `_.clone` except that it accepts `customizer` which\n     * is invoked to produce the cloned value. If `customizer` returns `undefined`,\n     * cloning is handled by the method instead. The `customizer` is invoked with\n     * up to four arguments; (value [, index|key, object, stack]).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to clone.\n     * @param {Function} [customizer] The function to customize cloning.\n     * @returns {*} Returns the cloned value.\n     * @see _.cloneDeepWith\n     * @example\n     *\n     * function customizer(value) {\n     *   if (_.isElement(value)) {\n     *     return value.cloneNode(false);\n     *   }\n     * }\n     *\n     * var el = _.cloneWith(document.body, customizer);\n     *\n     * console.log(el === document.body);\n     * // => false\n     * console.log(el.nodeName);\n     * // => 'BODY'\n     * console.log(el.childNodes.length);\n     * // => 0\n     */\n\n\n    function cloneWith(value, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);\n    }\n    /**\n     * This method is like `_.clone` except that it recursively clones `value`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.0.0\n     * @category Lang\n     * @param {*} value The value to recursively clone.\n     * @returns {*} Returns the deep cloned value.\n     * @see _.clone\n     * @example\n     *\n     * var objects = [{ 'a': 1 }, { 'b': 2 }];\n     *\n     * var deep = _.cloneDeep(objects);\n     * console.log(deep[0] === objects[0]);\n     * // => false\n     */\n\n\n    function cloneDeep(value) {\n      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n    }\n    /**\n     * This method is like `_.cloneWith` except that it recursively clones `value`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to recursively clone.\n     * @param {Function} [customizer] The function to customize cloning.\n     * @returns {*} Returns the deep cloned value.\n     * @see _.cloneWith\n     * @example\n     *\n     * function customizer(value) {\n     *   if (_.isElement(value)) {\n     *     return value.cloneNode(true);\n     *   }\n     * }\n     *\n     * var el = _.cloneDeepWith(document.body, customizer);\n     *\n     * console.log(el === document.body);\n     * // => false\n     * console.log(el.nodeName);\n     * // => 'BODY'\n     * console.log(el.childNodes.length);\n     * // => 20\n     */\n\n\n    function cloneDeepWith(value, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n    }\n    /**\n     * Checks if `object` conforms to `source` by invoking the predicate\n     * properties of `source` with the corresponding property values of `object`.\n     *\n     * **Note:** This method is equivalent to `_.conforms` when `source` is\n     * partially applied.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.14.0\n     * @category Lang\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property predicates to conform to.\n     * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2 };\n     *\n     * _.conformsTo(object, { 'b': function(n) { return n > 1; } });\n     * // => true\n     *\n     * _.conformsTo(object, { 'b': function(n) { return n > 2; } });\n     * // => false\n     */\n\n\n    function conformsTo(object, source) {\n      return source == null || baseConformsTo(object, source, keys(source));\n    }\n    /**\n     * Performs a\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * comparison between two values to determine if they are equivalent.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n     * @example\n     *\n     * var object = { 'a': 1 };\n     * var other = { 'a': 1 };\n     *\n     * _.eq(object, object);\n     * // => true\n     *\n     * _.eq(object, other);\n     * // => false\n     *\n     * _.eq('a', 'a');\n     * // => true\n     *\n     * _.eq('a', Object('a'));\n     * // => false\n     *\n     * _.eq(NaN, NaN);\n     * // => true\n     */\n\n\n    function eq(value, other) {\n      return value === other || value !== value && other !== other;\n    }\n    /**\n     * Checks if `value` is greater than `other`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.9.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is greater than `other`,\n     *  else `false`.\n     * @see _.lt\n     * @example\n     *\n     * _.gt(3, 1);\n     * // => true\n     *\n     * _.gt(3, 3);\n     * // => false\n     *\n     * _.gt(1, 3);\n     * // => false\n     */\n\n\n    var gt = createRelationalOperation(baseGt);\n    /**\n     * Checks if `value` is greater than or equal to `other`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.9.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is greater than or equal to\n     *  `other`, else `false`.\n     * @see _.lte\n     * @example\n     *\n     * _.gte(3, 1);\n     * // => true\n     *\n     * _.gte(3, 3);\n     * // => true\n     *\n     * _.gte(1, 3);\n     * // => false\n     */\n\n    var gte = createRelationalOperation(function (value, other) {\n      return value >= other;\n    });\n    /**\n     * Checks if `value` is likely an `arguments` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n     *  else `false`.\n     * @example\n     *\n     * _.isArguments(function() { return arguments; }());\n     * // => true\n     *\n     * _.isArguments([1, 2, 3]);\n     * // => false\n     */\n\n    var isArguments = baseIsArguments(function () {\n      return arguments;\n    }()) ? baseIsArguments : function (value) {\n      return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');\n    };\n    /**\n     * Checks if `value` is classified as an `Array` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n     * @example\n     *\n     * _.isArray([1, 2, 3]);\n     * // => true\n     *\n     * _.isArray(document.body.children);\n     * // => false\n     *\n     * _.isArray('abc');\n     * // => false\n     *\n     * _.isArray(_.noop);\n     * // => false\n     */\n\n    var isArray = Array.isArray;\n    /**\n     * Checks if `value` is classified as an `ArrayBuffer` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n     * @example\n     *\n     * _.isArrayBuffer(new ArrayBuffer(2));\n     * // => true\n     *\n     * _.isArrayBuffer(new Array(2));\n     * // => false\n     */\n\n    var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;\n    /**\n     * Checks if `value` is array-like. A value is considered array-like if it's\n     * not a function and has a `value.length` that's an integer greater than or\n     * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n     * @example\n     *\n     * _.isArrayLike([1, 2, 3]);\n     * // => true\n     *\n     * _.isArrayLike(document.body.children);\n     * // => true\n     *\n     * _.isArrayLike('abc');\n     * // => true\n     *\n     * _.isArrayLike(_.noop);\n     * // => false\n     */\n\n    function isArrayLike(value) {\n      return value != null && isLength(value.length) && !isFunction(value);\n    }\n    /**\n     * This method is like `_.isArrayLike` except that it also checks if `value`\n     * is an object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an array-like object,\n     *  else `false`.\n     * @example\n     *\n     * _.isArrayLikeObject([1, 2, 3]);\n     * // => true\n     *\n     * _.isArrayLikeObject(document.body.children);\n     * // => true\n     *\n     * _.isArrayLikeObject('abc');\n     * // => false\n     *\n     * _.isArrayLikeObject(_.noop);\n     * // => false\n     */\n\n\n    function isArrayLikeObject(value) {\n      return isObjectLike(value) && isArrayLike(value);\n    }\n    /**\n     * Checks if `value` is classified as a boolean primitive or object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.\n     * @example\n     *\n     * _.isBoolean(false);\n     * // => true\n     *\n     * _.isBoolean(null);\n     * // => false\n     */\n\n\n    function isBoolean(value) {\n      return value === true || value === false || isObjectLike(value) && baseGetTag(value) == boolTag;\n    }\n    /**\n     * Checks if `value` is a buffer.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n     * @example\n     *\n     * _.isBuffer(new Buffer(2));\n     * // => true\n     *\n     * _.isBuffer(new Uint8Array(2));\n     * // => false\n     */\n\n\n    var isBuffer = nativeIsBuffer || stubFalse;\n    /**\n     * Checks if `value` is classified as a `Date` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n     * @example\n     *\n     * _.isDate(new Date);\n     * // => true\n     *\n     * _.isDate('Mon April 23 2012');\n     * // => false\n     */\n\n    var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;\n    /**\n     * Checks if `value` is likely a DOM element.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n     * @example\n     *\n     * _.isElement(document.body);\n     * // => true\n     *\n     * _.isElement('<body>');\n     * // => false\n     */\n\n    function isElement(value) {\n      return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n    }\n    /**\n     * Checks if `value` is an empty object, collection, map, or set.\n     *\n     * Objects are considered empty if they have no own enumerable string keyed\n     * properties.\n     *\n     * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n     * jQuery-like collections are considered empty if they have a `length` of `0`.\n     * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n     * @example\n     *\n     * _.isEmpty(null);\n     * // => true\n     *\n     * _.isEmpty(true);\n     * // => true\n     *\n     * _.isEmpty(1);\n     * // => true\n     *\n     * _.isEmpty([1, 2, 3]);\n     * // => false\n     *\n     * _.isEmpty({ 'a': 1 });\n     * // => false\n     */\n\n\n    function isEmpty(value) {\n      if (value == null) {\n        return true;\n      }\n\n      if (isArrayLike(value) && (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n        return !value.length;\n      }\n\n      var tag = getTag(value);\n\n      if (tag == mapTag || tag == setTag) {\n        return !value.size;\n      }\n\n      if (isPrototype(value)) {\n        return !baseKeys(value).length;\n      }\n\n      for (var key in value) {\n        if (hasOwnProperty.call(value, key)) {\n          return false;\n        }\n      }\n\n      return true;\n    }\n    /**\n     * Performs a deep comparison between two values to determine if they are\n     * equivalent.\n     *\n     * **Note:** This method supports comparing arrays, array buffers, booleans,\n     * date objects, error objects, maps, numbers, `Object` objects, regexes,\n     * sets, strings, symbols, and typed arrays. `Object` objects are compared\n     * by their own, not inherited, enumerable properties. Functions and DOM\n     * nodes are compared by strict equality, i.e. `===`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n     * @example\n     *\n     * var object = { 'a': 1 };\n     * var other = { 'a': 1 };\n     *\n     * _.isEqual(object, other);\n     * // => true\n     *\n     * object === other;\n     * // => false\n     */\n\n\n    function isEqual(value, other) {\n      return baseIsEqual(value, other);\n    }\n    /**\n     * This method is like `_.isEqual` except that it accepts `customizer` which\n     * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n     * are handled by the method instead. The `customizer` is invoked with up to\n     * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @param {Function} [customizer] The function to customize comparisons.\n     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n     * @example\n     *\n     * function isGreeting(value) {\n     *   return /^h(?:i|ello)$/.test(value);\n     * }\n     *\n     * function customizer(objValue, othValue) {\n     *   if (isGreeting(objValue) && isGreeting(othValue)) {\n     *     return true;\n     *   }\n     * }\n     *\n     * var array = ['hello', 'goodbye'];\n     * var other = ['hi', 'goodbye'];\n     *\n     * _.isEqualWith(array, other, customizer);\n     * // => true\n     */\n\n\n    function isEqualWith(value, other, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      var result = customizer ? customizer(value, other) : undefined;\n      return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n    }\n    /**\n     * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,\n     * `SyntaxError`, `TypeError`, or `URIError` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.\n     * @example\n     *\n     * _.isError(new Error);\n     * // => true\n     *\n     * _.isError(Error);\n     * // => false\n     */\n\n\n    function isError(value) {\n      if (!isObjectLike(value)) {\n        return false;\n      }\n\n      var tag = baseGetTag(value);\n      return tag == errorTag || tag == domExcTag || typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value);\n    }\n    /**\n     * Checks if `value` is a finite primitive number.\n     *\n     * **Note:** This method is based on\n     * [`Number.isFinite`](https://mdn.io/Number/isFinite).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.\n     * @example\n     *\n     * _.isFinite(3);\n     * // => true\n     *\n     * _.isFinite(Number.MIN_VALUE);\n     * // => true\n     *\n     * _.isFinite(Infinity);\n     * // => false\n     *\n     * _.isFinite('3');\n     * // => false\n     */\n\n\n    function isFinite(value) {\n      return typeof value == 'number' && nativeIsFinite(value);\n    }\n    /**\n     * Checks if `value` is classified as a `Function` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n     * @example\n     *\n     * _.isFunction(_);\n     * // => true\n     *\n     * _.isFunction(/abc/);\n     * // => false\n     */\n\n\n    function isFunction(value) {\n      if (!isObject(value)) {\n        return false;\n      } // The use of `Object#toString` avoids issues with the `typeof` operator\n      // in Safari 9 which returns 'object' for typed arrays and other constructors.\n\n\n      var tag = baseGetTag(value);\n      return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n    }\n    /**\n     * Checks if `value` is an integer.\n     *\n     * **Note:** This method is based on\n     * [`Number.isInteger`](https://mdn.io/Number/isInteger).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an integer, else `false`.\n     * @example\n     *\n     * _.isInteger(3);\n     * // => true\n     *\n     * _.isInteger(Number.MIN_VALUE);\n     * // => false\n     *\n     * _.isInteger(Infinity);\n     * // => false\n     *\n     * _.isInteger('3');\n     * // => false\n     */\n\n\n    function isInteger(value) {\n      return typeof value == 'number' && value == toInteger(value);\n    }\n    /**\n     * Checks if `value` is a valid array-like length.\n     *\n     * **Note:** This method is loosely based on\n     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n     * @example\n     *\n     * _.isLength(3);\n     * // => true\n     *\n     * _.isLength(Number.MIN_VALUE);\n     * // => false\n     *\n     * _.isLength(Infinity);\n     * // => false\n     *\n     * _.isLength('3');\n     * // => false\n     */\n\n\n    function isLength(value) {\n      return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n    }\n    /**\n     * Checks if `value` is the\n     * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n     * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n     * @example\n     *\n     * _.isObject({});\n     * // => true\n     *\n     * _.isObject([1, 2, 3]);\n     * // => true\n     *\n     * _.isObject(_.noop);\n     * // => true\n     *\n     * _.isObject(null);\n     * // => false\n     */\n\n\n    function isObject(value) {\n      var type = _typeof(value);\n\n      return value != null && (type == 'object' || type == 'function');\n    }\n    /**\n     * Checks if `value` is object-like. A value is object-like if it's not `null`\n     * and has a `typeof` result of \"object\".\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n     * @example\n     *\n     * _.isObjectLike({});\n     * // => true\n     *\n     * _.isObjectLike([1, 2, 3]);\n     * // => true\n     *\n     * _.isObjectLike(_.noop);\n     * // => false\n     *\n     * _.isObjectLike(null);\n     * // => false\n     */\n\n\n    function isObjectLike(value) {\n      return value != null && _typeof(value) == 'object';\n    }\n    /**\n     * Checks if `value` is classified as a `Map` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n     * @example\n     *\n     * _.isMap(new Map);\n     * // => true\n     *\n     * _.isMap(new WeakMap);\n     * // => false\n     */\n\n\n    var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n    /**\n     * Performs a partial deep comparison between `object` and `source` to\n     * determine if `object` contains equivalent property values.\n     *\n     * **Note:** This method is equivalent to `_.matches` when `source` is\n     * partially applied.\n     *\n     * Partial comparisons will match empty array and empty object `source`\n     * values against any array or object value, respectively. See `_.isEqual`\n     * for a list of supported value comparisons.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property values to match.\n     * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2 };\n     *\n     * _.isMatch(object, { 'b': 2 });\n     * // => true\n     *\n     * _.isMatch(object, { 'b': 1 });\n     * // => false\n     */\n\n    function isMatch(object, source) {\n      return object === source || baseIsMatch(object, source, getMatchData(source));\n    }\n    /**\n     * This method is like `_.isMatch` except that it accepts `customizer` which\n     * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n     * are handled by the method instead. The `customizer` is invoked with five\n     * arguments: (objValue, srcValue, index|key, object, source).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property values to match.\n     * @param {Function} [customizer] The function to customize comparisons.\n     * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n     * @example\n     *\n     * function isGreeting(value) {\n     *   return /^h(?:i|ello)$/.test(value);\n     * }\n     *\n     * function customizer(objValue, srcValue) {\n     *   if (isGreeting(objValue) && isGreeting(srcValue)) {\n     *     return true;\n     *   }\n     * }\n     *\n     * var object = { 'greeting': 'hello' };\n     * var source = { 'greeting': 'hi' };\n     *\n     * _.isMatchWith(object, source, customizer);\n     * // => true\n     */\n\n\n    function isMatchWith(object, source, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return baseIsMatch(object, source, getMatchData(source), customizer);\n    }\n    /**\n     * Checks if `value` is `NaN`.\n     *\n     * **Note:** This method is based on\n     * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as\n     * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for\n     * `undefined` and other non-number values.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n     * @example\n     *\n     * _.isNaN(NaN);\n     * // => true\n     *\n     * _.isNaN(new Number(NaN));\n     * // => true\n     *\n     * isNaN(undefined);\n     * // => true\n     *\n     * _.isNaN(undefined);\n     * // => false\n     */\n\n\n    function isNaN(value) {\n      // An `NaN` primitive is the only value that is not equal to itself.\n      // Perform the `toStringTag` check first to avoid errors with some\n      // ActiveX objects in IE.\n      return isNumber(value) && value != +value;\n    }\n    /**\n     * Checks if `value` is a pristine native function.\n     *\n     * **Note:** This method can't reliably detect native functions in the presence\n     * of the core-js package because core-js circumvents this kind of detection.\n     * Despite multiple requests, the core-js maintainer has made it clear: any\n     * attempt to fix the detection will be obstructed. As a result, we're left\n     * with little choice but to throw an error. Unfortunately, this also affects\n     * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),\n     * which rely on core-js.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a native function,\n     *  else `false`.\n     * @example\n     *\n     * _.isNative(Array.prototype.push);\n     * // => true\n     *\n     * _.isNative(_);\n     * // => false\n     */\n\n\n    function isNative(value) {\n      if (isMaskable(value)) {\n        throw new Error(CORE_ERROR_TEXT);\n      }\n\n      return baseIsNative(value);\n    }\n    /**\n     * Checks if `value` is `null`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is `null`, else `false`.\n     * @example\n     *\n     * _.isNull(null);\n     * // => true\n     *\n     * _.isNull(void 0);\n     * // => false\n     */\n\n\n    function isNull(value) {\n      return value === null;\n    }\n    /**\n     * Checks if `value` is `null` or `undefined`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is nullish, else `false`.\n     * @example\n     *\n     * _.isNil(null);\n     * // => true\n     *\n     * _.isNil(void 0);\n     * // => true\n     *\n     * _.isNil(NaN);\n     * // => false\n     */\n\n\n    function isNil(value) {\n      return value == null;\n    }\n    /**\n     * Checks if `value` is classified as a `Number` primitive or object.\n     *\n     * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n     * classified as numbers, use the `_.isFinite` method.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n     * @example\n     *\n     * _.isNumber(3);\n     * // => true\n     *\n     * _.isNumber(Number.MIN_VALUE);\n     * // => true\n     *\n     * _.isNumber(Infinity);\n     * // => true\n     *\n     * _.isNumber('3');\n     * // => false\n     */\n\n\n    function isNumber(value) {\n      return typeof value == 'number' || isObjectLike(value) && baseGetTag(value) == numberTag;\n    }\n    /**\n     * Checks if `value` is a plain object, that is, an object created by the\n     * `Object` constructor or one with a `[[Prototype]]` of `null`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.8.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     * }\n     *\n     * _.isPlainObject(new Foo);\n     * // => false\n     *\n     * _.isPlainObject([1, 2, 3]);\n     * // => false\n     *\n     * _.isPlainObject({ 'x': 0, 'y': 0 });\n     * // => true\n     *\n     * _.isPlainObject(Object.create(null));\n     * // => true\n     */\n\n\n    function isPlainObject(value) {\n      if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n        return false;\n      }\n\n      var proto = getPrototype(value);\n\n      if (proto === null) {\n        return true;\n      }\n\n      var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n      return typeof Ctor == 'function' && Ctor instanceof Ctor && funcToString.call(Ctor) == objectCtorString;\n    }\n    /**\n     * Checks if `value` is classified as a `RegExp` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n     * @example\n     *\n     * _.isRegExp(/abc/);\n     * // => true\n     *\n     * _.isRegExp('/abc/');\n     * // => false\n     */\n\n\n    var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;\n    /**\n     * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754\n     * double precision number which isn't the result of a rounded unsafe integer.\n     *\n     * **Note:** This method is based on\n     * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.\n     * @example\n     *\n     * _.isSafeInteger(3);\n     * // => true\n     *\n     * _.isSafeInteger(Number.MIN_VALUE);\n     * // => false\n     *\n     * _.isSafeInteger(Infinity);\n     * // => false\n     *\n     * _.isSafeInteger('3');\n     * // => false\n     */\n\n    function isSafeInteger(value) {\n      return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;\n    }\n    /**\n     * Checks if `value` is classified as a `Set` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n     * @example\n     *\n     * _.isSet(new Set);\n     * // => true\n     *\n     * _.isSet(new WeakSet);\n     * // => false\n     */\n\n\n    var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n    /**\n     * Checks if `value` is classified as a `String` primitive or object.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n     * @example\n     *\n     * _.isString('abc');\n     * // => true\n     *\n     * _.isString(1);\n     * // => false\n     */\n\n    function isString(value) {\n      return typeof value == 'string' || !isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag;\n    }\n    /**\n     * Checks if `value` is classified as a `Symbol` primitive or object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n     * @example\n     *\n     * _.isSymbol(Symbol.iterator);\n     * // => true\n     *\n     * _.isSymbol('abc');\n     * // => false\n     */\n\n\n    function isSymbol(value) {\n      return _typeof(value) == 'symbol' || isObjectLike(value) && baseGetTag(value) == symbolTag;\n    }\n    /**\n     * Checks if `value` is classified as a typed array.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n     * @example\n     *\n     * _.isTypedArray(new Uint8Array);\n     * // => true\n     *\n     * _.isTypedArray([]);\n     * // => false\n     */\n\n\n    var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n    /**\n     * Checks if `value` is `undefined`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n     * @example\n     *\n     * _.isUndefined(void 0);\n     * // => true\n     *\n     * _.isUndefined(null);\n     * // => false\n     */\n\n    function isUndefined(value) {\n      return value === undefined;\n    }\n    /**\n     * Checks if `value` is classified as a `WeakMap` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.\n     * @example\n     *\n     * _.isWeakMap(new WeakMap);\n     * // => true\n     *\n     * _.isWeakMap(new Map);\n     * // => false\n     */\n\n\n    function isWeakMap(value) {\n      return isObjectLike(value) && getTag(value) == weakMapTag;\n    }\n    /**\n     * Checks if `value` is classified as a `WeakSet` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.\n     * @example\n     *\n     * _.isWeakSet(new WeakSet);\n     * // => true\n     *\n     * _.isWeakSet(new Set);\n     * // => false\n     */\n\n\n    function isWeakSet(value) {\n      return isObjectLike(value) && baseGetTag(value) == weakSetTag;\n    }\n    /**\n     * Checks if `value` is less than `other`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.9.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is less than `other`,\n     *  else `false`.\n     * @see _.gt\n     * @example\n     *\n     * _.lt(1, 3);\n     * // => true\n     *\n     * _.lt(3, 3);\n     * // => false\n     *\n     * _.lt(3, 1);\n     * // => false\n     */\n\n\n    var lt = createRelationalOperation(baseLt);\n    /**\n     * Checks if `value` is less than or equal to `other`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.9.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is less than or equal to\n     *  `other`, else `false`.\n     * @see _.gte\n     * @example\n     *\n     * _.lte(1, 3);\n     * // => true\n     *\n     * _.lte(3, 3);\n     * // => true\n     *\n     * _.lte(3, 1);\n     * // => false\n     */\n\n    var lte = createRelationalOperation(function (value, other) {\n      return value <= other;\n    });\n    /**\n     * Converts `value` to an array.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {Array} Returns the converted array.\n     * @example\n     *\n     * _.toArray({ 'a': 1, 'b': 2 });\n     * // => [1, 2]\n     *\n     * _.toArray('abc');\n     * // => ['a', 'b', 'c']\n     *\n     * _.toArray(1);\n     * // => []\n     *\n     * _.toArray(null);\n     * // => []\n     */\n\n    function toArray(value) {\n      if (!value) {\n        return [];\n      }\n\n      if (isArrayLike(value)) {\n        return isString(value) ? stringToArray(value) : copyArray(value);\n      }\n\n      if (symIterator && value[symIterator]) {\n        return iteratorToArray(value[symIterator]());\n      }\n\n      var tag = getTag(value),\n          func = tag == mapTag ? mapToArray : tag == setTag ? setToArray : values;\n      return func(value);\n    }\n    /**\n     * Converts `value` to a finite number.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.12.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {number} Returns the converted number.\n     * @example\n     *\n     * _.toFinite(3.2);\n     * // => 3.2\n     *\n     * _.toFinite(Number.MIN_VALUE);\n     * // => 5e-324\n     *\n     * _.toFinite(Infinity);\n     * // => 1.7976931348623157e+308\n     *\n     * _.toFinite('3.2');\n     * // => 3.2\n     */\n\n\n    function toFinite(value) {\n      if (!value) {\n        return value === 0 ? value : 0;\n      }\n\n      value = toNumber(value);\n\n      if (value === INFINITY || value === -INFINITY) {\n        var sign = value < 0 ? -1 : 1;\n        return sign * MAX_INTEGER;\n      }\n\n      return value === value ? value : 0;\n    }\n    /**\n     * Converts `value` to an integer.\n     *\n     * **Note:** This method is loosely based on\n     * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {number} Returns the converted integer.\n     * @example\n     *\n     * _.toInteger(3.2);\n     * // => 3\n     *\n     * _.toInteger(Number.MIN_VALUE);\n     * // => 0\n     *\n     * _.toInteger(Infinity);\n     * // => 1.7976931348623157e+308\n     *\n     * _.toInteger('3.2');\n     * // => 3\n     */\n\n\n    function toInteger(value) {\n      var result = toFinite(value),\n          remainder = result % 1;\n      return result === result ? remainder ? result - remainder : result : 0;\n    }\n    /**\n     * Converts `value` to an integer suitable for use as the length of an\n     * array-like object.\n     *\n     * **Note:** This method is based on\n     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {number} Returns the converted integer.\n     * @example\n     *\n     * _.toLength(3.2);\n     * // => 3\n     *\n     * _.toLength(Number.MIN_VALUE);\n     * // => 0\n     *\n     * _.toLength(Infinity);\n     * // => 4294967295\n     *\n     * _.toLength('3.2');\n     * // => 3\n     */\n\n\n    function toLength(value) {\n      return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;\n    }\n    /**\n     * Converts `value` to a number.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to process.\n     * @returns {number} Returns the number.\n     * @example\n     *\n     * _.toNumber(3.2);\n     * // => 3.2\n     *\n     * _.toNumber(Number.MIN_VALUE);\n     * // => 5e-324\n     *\n     * _.toNumber(Infinity);\n     * // => Infinity\n     *\n     * _.toNumber('3.2');\n     * // => 3.2\n     */\n\n\n    function toNumber(value) {\n      if (typeof value == 'number') {\n        return value;\n      }\n\n      if (isSymbol(value)) {\n        return NAN;\n      }\n\n      if (isObject(value)) {\n        var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n        value = isObject(other) ? other + '' : other;\n      }\n\n      if (typeof value != 'string') {\n        return value === 0 ? value : +value;\n      }\n\n      value = value.replace(reTrim, '');\n      var isBinary = reIsBinary.test(value);\n      return isBinary || reIsOctal.test(value) ? freeParseInt(value.slice(2), isBinary ? 2 : 8) : reIsBadHex.test(value) ? NAN : +value;\n    }\n    /**\n     * Converts `value` to a plain object flattening inherited enumerable string\n     * keyed properties of `value` to own properties of the plain object.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {Object} Returns the converted plain object.\n     * @example\n     *\n     * function Foo() {\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.assign({ 'a': 1 }, new Foo);\n     * // => { 'a': 1, 'b': 2 }\n     *\n     * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n     * // => { 'a': 1, 'b': 2, 'c': 3 }\n     */\n\n\n    function toPlainObject(value) {\n      return copyObject(value, keysIn(value));\n    }\n    /**\n     * Converts `value` to a safe integer. A safe integer can be compared and\n     * represented correctly.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {number} Returns the converted integer.\n     * @example\n     *\n     * _.toSafeInteger(3.2);\n     * // => 3\n     *\n     * _.toSafeInteger(Number.MIN_VALUE);\n     * // => 0\n     *\n     * _.toSafeInteger(Infinity);\n     * // => 9007199254740991\n     *\n     * _.toSafeInteger('3.2');\n     * // => 3\n     */\n\n\n    function toSafeInteger(value) {\n      return value ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER) : value === 0 ? value : 0;\n    }\n    /**\n     * Converts `value` to a string. An empty string is returned for `null`\n     * and `undefined` values. The sign of `-0` is preserved.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {string} Returns the converted string.\n     * @example\n     *\n     * _.toString(null);\n     * // => ''\n     *\n     * _.toString(-0);\n     * // => '-0'\n     *\n     * _.toString([1, 2, 3]);\n     * // => '1,2,3'\n     */\n\n\n    function toString(value) {\n      return value == null ? '' : baseToString(value);\n    }\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Assigns own enumerable string keyed properties of source objects to the\n     * destination object. Source objects are applied from left to right.\n     * Subsequent sources overwrite property assignments of previous sources.\n     *\n     * **Note:** This method mutates `object` and is loosely based on\n     * [`Object.assign`](https://mdn.io/Object/assign).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.10.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @see _.assignIn\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     * }\n     *\n     * function Bar() {\n     *   this.c = 3;\n     * }\n     *\n     * Foo.prototype.b = 2;\n     * Bar.prototype.d = 4;\n     *\n     * _.assign({ 'a': 0 }, new Foo, new Bar);\n     * // => { 'a': 1, 'c': 3 }\n     */\n\n\n    var assign = createAssigner(function (object, source) {\n      if (isPrototype(source) || isArrayLike(source)) {\n        copyObject(source, keys(source), object);\n        return;\n      }\n\n      for (var key in source) {\n        if (hasOwnProperty.call(source, key)) {\n          assignValue(object, key, source[key]);\n        }\n      }\n    });\n    /**\n     * This method is like `_.assign` except that it iterates over own and\n     * inherited source properties.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @alias extend\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @see _.assign\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     * }\n     *\n     * function Bar() {\n     *   this.c = 3;\n     * }\n     *\n     * Foo.prototype.b = 2;\n     * Bar.prototype.d = 4;\n     *\n     * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n     * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n     */\n\n    var assignIn = createAssigner(function (object, source) {\n      copyObject(source, keysIn(source), object);\n    });\n    /**\n     * This method is like `_.assignIn` except that it accepts `customizer`\n     * which is invoked to produce the assigned values. If `customizer` returns\n     * `undefined`, assignment is handled by the method instead. The `customizer`\n     * is invoked with five arguments: (objValue, srcValue, key, object, source).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @alias extendWith\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} sources The source objects.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @see _.assignWith\n     * @example\n     *\n     * function customizer(objValue, srcValue) {\n     *   return _.isUndefined(objValue) ? srcValue : objValue;\n     * }\n     *\n     * var defaults = _.partialRight(_.assignInWith, customizer);\n     *\n     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n     * // => { 'a': 1, 'b': 2 }\n     */\n\n    var assignInWith = createAssigner(function (object, source, srcIndex, customizer) {\n      copyObject(source, keysIn(source), object, customizer);\n    });\n    /**\n     * This method is like `_.assign` except that it accepts `customizer`\n     * which is invoked to produce the assigned values. If `customizer` returns\n     * `undefined`, assignment is handled by the method instead. The `customizer`\n     * is invoked with five arguments: (objValue, srcValue, key, object, source).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} sources The source objects.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @see _.assignInWith\n     * @example\n     *\n     * function customizer(objValue, srcValue) {\n     *   return _.isUndefined(objValue) ? srcValue : objValue;\n     * }\n     *\n     * var defaults = _.partialRight(_.assignWith, customizer);\n     *\n     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n     * // => { 'a': 1, 'b': 2 }\n     */\n\n    var assignWith = createAssigner(function (object, source, srcIndex, customizer) {\n      copyObject(source, keys(source), object, customizer);\n    });\n    /**\n     * Creates an array of values corresponding to `paths` of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.0.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {...(string|string[])} [paths] The property paths to pick.\n     * @returns {Array} Returns the picked values.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n     *\n     * _.at(object, ['a[0].b.c', 'a[1]']);\n     * // => [3, 4]\n     */\n\n    var at = flatRest(baseAt);\n    /**\n     * Creates an object that inherits from the `prototype` object. If a\n     * `properties` object is given, its own enumerable string keyed properties\n     * are assigned to the created object.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.3.0\n     * @category Object\n     * @param {Object} prototype The object to inherit from.\n     * @param {Object} [properties] The properties to assign to the object.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * function Shape() {\n     *   this.x = 0;\n     *   this.y = 0;\n     * }\n     *\n     * function Circle() {\n     *   Shape.call(this);\n     * }\n     *\n     * Circle.prototype = _.create(Shape.prototype, {\n     *   'constructor': Circle\n     * });\n     *\n     * var circle = new Circle;\n     * circle instanceof Circle;\n     * // => true\n     *\n     * circle instanceof Shape;\n     * // => true\n     */\n\n    function create(prototype, properties) {\n      var result = baseCreate(prototype);\n      return properties == null ? result : baseAssign(result, properties);\n    }\n    /**\n     * Assigns own and inherited enumerable string keyed properties of source\n     * objects to the destination object for all destination properties that\n     * resolve to `undefined`. Source objects are applied from left to right.\n     * Once a property is set, additional values of the same property are ignored.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @see _.defaultsDeep\n     * @example\n     *\n     * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n     * // => { 'a': 1, 'b': 2 }\n     */\n\n\n    var defaults = baseRest(function (object, sources) {\n      object = Object(object);\n      var index = -1;\n      var length = sources.length;\n      var guard = length > 2 ? sources[2] : undefined;\n\n      if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n        length = 1;\n      }\n\n      while (++index < length) {\n        var source = sources[index];\n        var props = keysIn(source);\n        var propsIndex = -1;\n        var propsLength = props.length;\n\n        while (++propsIndex < propsLength) {\n          var key = props[propsIndex];\n          var value = object[key];\n\n          if (value === undefined || eq(value, objectProto[key]) && !hasOwnProperty.call(object, key)) {\n            object[key] = source[key];\n          }\n        }\n      }\n\n      return object;\n    });\n    /**\n     * This method is like `_.defaults` except that it recursively assigns\n     * default properties.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.10.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @see _.defaults\n     * @example\n     *\n     * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });\n     * // => { 'a': { 'b': 2, 'c': 3 } }\n     */\n\n    var defaultsDeep = baseRest(function (args) {\n      args.push(undefined, customDefaultsMerge);\n      return apply(mergeWith, undefined, args);\n    });\n    /**\n     * This method is like `_.find` except that it returns the key of the first\n     * element `predicate` returns truthy for instead of the element itself.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.1.0\n     * @category Object\n     * @param {Object} object The object to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {string|undefined} Returns the key of the matched element,\n     *  else `undefined`.\n     * @example\n     *\n     * var users = {\n     *   'barney':  { 'age': 36, 'active': true },\n     *   'fred':    { 'age': 40, 'active': false },\n     *   'pebbles': { 'age': 1,  'active': true }\n     * };\n     *\n     * _.findKey(users, function(o) { return o.age < 40; });\n     * // => 'barney' (iteration order is not guaranteed)\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.findKey(users, { 'age': 1, 'active': true });\n     * // => 'pebbles'\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.findKey(users, ['active', false]);\n     * // => 'fred'\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.findKey(users, 'active');\n     * // => 'barney'\n     */\n\n    function findKey(object, predicate) {\n      return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);\n    }\n    /**\n     * This method is like `_.findKey` except that it iterates over elements of\n     * a collection in the opposite order.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Object\n     * @param {Object} object The object to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {string|undefined} Returns the key of the matched element,\n     *  else `undefined`.\n     * @example\n     *\n     * var users = {\n     *   'barney':  { 'age': 36, 'active': true },\n     *   'fred':    { 'age': 40, 'active': false },\n     *   'pebbles': { 'age': 1,  'active': true }\n     * };\n     *\n     * _.findLastKey(users, function(o) { return o.age < 40; });\n     * // => returns 'pebbles' assuming `_.findKey` returns 'barney'\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.findLastKey(users, { 'age': 36, 'active': true });\n     * // => 'barney'\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.findLastKey(users, ['active', false]);\n     * // => 'fred'\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.findLastKey(users, 'active');\n     * // => 'pebbles'\n     */\n\n\n    function findLastKey(object, predicate) {\n      return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);\n    }\n    /**\n     * Iterates over own and inherited enumerable string keyed properties of an\n     * object and invokes `iteratee` for each property. The iteratee is invoked\n     * with three arguments: (value, key, object). Iteratee functions may exit\n     * iteration early by explicitly returning `false`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.3.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     * @see _.forInRight\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.forIn(new Foo, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).\n     */\n\n\n    function forIn(object, iteratee) {\n      return object == null ? object : baseFor(object, getIteratee(iteratee, 3), keysIn);\n    }\n    /**\n     * This method is like `_.forIn` except that it iterates over properties of\n     * `object` in the opposite order.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     * @see _.forIn\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.forInRight(new Foo, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.\n     */\n\n\n    function forInRight(object, iteratee) {\n      return object == null ? object : baseForRight(object, getIteratee(iteratee, 3), keysIn);\n    }\n    /**\n     * Iterates over own enumerable string keyed properties of an object and\n     * invokes `iteratee` for each property. The iteratee is invoked with three\n     * arguments: (value, key, object). Iteratee functions may exit iteration\n     * early by explicitly returning `false`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.3.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     * @see _.forOwnRight\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.forOwn(new Foo, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n     */\n\n\n    function forOwn(object, iteratee) {\n      return object && baseForOwn(object, getIteratee(iteratee, 3));\n    }\n    /**\n     * This method is like `_.forOwn` except that it iterates over properties of\n     * `object` in the opposite order.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     * @see _.forOwn\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.forOwnRight(new Foo, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.\n     */\n\n\n    function forOwnRight(object, iteratee) {\n      return object && baseForOwnRight(object, getIteratee(iteratee, 3));\n    }\n    /**\n     * Creates an array of function property names from own enumerable properties\n     * of `object`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to inspect.\n     * @returns {Array} Returns the function names.\n     * @see _.functionsIn\n     * @example\n     *\n     * function Foo() {\n     *   this.a = _.constant('a');\n     *   this.b = _.constant('b');\n     * }\n     *\n     * Foo.prototype.c = _.constant('c');\n     *\n     * _.functions(new Foo);\n     * // => ['a', 'b']\n     */\n\n\n    function functions(object) {\n      return object == null ? [] : baseFunctions(object, keys(object));\n    }\n    /**\n     * Creates an array of function property names from own and inherited\n     * enumerable properties of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to inspect.\n     * @returns {Array} Returns the function names.\n     * @see _.functions\n     * @example\n     *\n     * function Foo() {\n     *   this.a = _.constant('a');\n     *   this.b = _.constant('b');\n     * }\n     *\n     * Foo.prototype.c = _.constant('c');\n     *\n     * _.functionsIn(new Foo);\n     * // => ['a', 'b', 'c']\n     */\n\n\n    function functionsIn(object) {\n      return object == null ? [] : baseFunctions(object, keysIn(object));\n    }\n    /**\n     * Gets the value at `path` of `object`. If the resolved value is\n     * `undefined`, the `defaultValue` is returned in its place.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.7.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the property to get.\n     * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n     * @returns {*} Returns the resolved value.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n     *\n     * _.get(object, 'a[0].b.c');\n     * // => 3\n     *\n     * _.get(object, ['a', '0', 'b', 'c']);\n     * // => 3\n     *\n     * _.get(object, 'a.b.c', 'default');\n     * // => 'default'\n     */\n\n\n    function get(object, path, defaultValue) {\n      var result = object == null ? undefined : baseGet(object, path);\n      return result === undefined ? defaultValue : result;\n    }\n    /**\n     * Checks if `path` is a direct property of `object`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path to check.\n     * @returns {boolean} Returns `true` if `path` exists, else `false`.\n     * @example\n     *\n     * var object = { 'a': { 'b': 2 } };\n     * var other = _.create({ 'a': _.create({ 'b': 2 }) });\n     *\n     * _.has(object, 'a');\n     * // => true\n     *\n     * _.has(object, 'a.b');\n     * // => true\n     *\n     * _.has(object, ['a', 'b']);\n     * // => true\n     *\n     * _.has(other, 'a');\n     * // => false\n     */\n\n\n    function has(object, path) {\n      return object != null && hasPath(object, path, baseHas);\n    }\n    /**\n     * Checks if `path` is a direct or inherited property of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path to check.\n     * @returns {boolean} Returns `true` if `path` exists, else `false`.\n     * @example\n     *\n     * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n     *\n     * _.hasIn(object, 'a');\n     * // => true\n     *\n     * _.hasIn(object, 'a.b');\n     * // => true\n     *\n     * _.hasIn(object, ['a', 'b']);\n     * // => true\n     *\n     * _.hasIn(object, 'b');\n     * // => false\n     */\n\n\n    function hasIn(object, path) {\n      return object != null && hasPath(object, path, baseHasIn);\n    }\n    /**\n     * Creates an object composed of the inverted keys and values of `object`.\n     * If `object` contains duplicate values, subsequent values overwrite\n     * property assignments of previous values.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.7.0\n     * @category Object\n     * @param {Object} object The object to invert.\n     * @returns {Object} Returns the new inverted object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2, 'c': 1 };\n     *\n     * _.invert(object);\n     * // => { '1': 'c', '2': 'b' }\n     */\n\n\n    var invert = createInverter(function (result, value, key) {\n      if (value != null && typeof value.toString != 'function') {\n        value = nativeObjectToString.call(value);\n      }\n\n      result[value] = key;\n    }, constant(identity));\n    /**\n     * This method is like `_.invert` except that the inverted object is generated\n     * from the results of running each element of `object` thru `iteratee`. The\n     * corresponding inverted value of each inverted key is an array of keys\n     * responsible for generating the inverted value. The iteratee is invoked\n     * with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.1.0\n     * @category Object\n     * @param {Object} object The object to invert.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Object} Returns the new inverted object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2, 'c': 1 };\n     *\n     * _.invertBy(object);\n     * // => { '1': ['a', 'c'], '2': ['b'] }\n     *\n     * _.invertBy(object, function(value) {\n     *   return 'group' + value;\n     * });\n     * // => { 'group1': ['a', 'c'], 'group2': ['b'] }\n     */\n\n    var invertBy = createInverter(function (result, value, key) {\n      if (value != null && typeof value.toString != 'function') {\n        value = nativeObjectToString.call(value);\n      }\n\n      if (hasOwnProperty.call(result, value)) {\n        result[value].push(key);\n      } else {\n        result[value] = [key];\n      }\n    }, getIteratee);\n    /**\n     * Invokes the method at `path` of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the method to invoke.\n     * @param {...*} [args] The arguments to invoke the method with.\n     * @returns {*} Returns the result of the invoked method.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };\n     *\n     * _.invoke(object, 'a[0].b.c.slice', 1, 3);\n     * // => [2, 3]\n     */\n\n    var invoke = baseRest(baseInvoke);\n    /**\n     * Creates an array of the own enumerable property names of `object`.\n     *\n     * **Note:** Non-object values are coerced to objects. See the\n     * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n     * for more details.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.keys(new Foo);\n     * // => ['a', 'b'] (iteration order is not guaranteed)\n     *\n     * _.keys('hi');\n     * // => ['0', '1']\n     */\n\n    function keys(object) {\n      return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n    }\n    /**\n     * Creates an array of the own and inherited enumerable property names of `object`.\n     *\n     * **Note:** Non-object values are coerced to objects.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.keysIn(new Foo);\n     * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n     */\n\n\n    function keysIn(object) {\n      return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n    }\n    /**\n     * The opposite of `_.mapValues`; this method creates an object with the\n     * same values as `object` and keys generated by running each own enumerable\n     * string keyed property of `object` thru `iteratee`. The iteratee is invoked\n     * with three arguments: (value, key, object).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.8.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns the new mapped object.\n     * @see _.mapValues\n     * @example\n     *\n     * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {\n     *   return key + value;\n     * });\n     * // => { 'a1': 1, 'b2': 2 }\n     */\n\n\n    function mapKeys(object, iteratee) {\n      var result = {};\n      iteratee = getIteratee(iteratee, 3);\n      baseForOwn(object, function (value, key, object) {\n        baseAssignValue(result, iteratee(value, key, object), value);\n      });\n      return result;\n    }\n    /**\n     * Creates an object with the same keys as `object` and values generated\n     * by running each own enumerable string keyed property of `object` thru\n     * `iteratee`. The iteratee is invoked with three arguments:\n     * (value, key, object).\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns the new mapped object.\n     * @see _.mapKeys\n     * @example\n     *\n     * var users = {\n     *   'fred':    { 'user': 'fred',    'age': 40 },\n     *   'pebbles': { 'user': 'pebbles', 'age': 1 }\n     * };\n     *\n     * _.mapValues(users, function(o) { return o.age; });\n     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.mapValues(users, 'age');\n     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n     */\n\n\n    function mapValues(object, iteratee) {\n      var result = {};\n      iteratee = getIteratee(iteratee, 3);\n      baseForOwn(object, function (value, key, object) {\n        baseAssignValue(result, key, iteratee(value, key, object));\n      });\n      return result;\n    }\n    /**\n     * This method is like `_.assign` except that it recursively merges own and\n     * inherited enumerable string keyed properties of source objects into the\n     * destination object. Source properties that resolve to `undefined` are\n     * skipped if a destination value exists. Array and plain object properties\n     * are merged recursively. Other objects and value types are overridden by\n     * assignment. Source objects are applied from left to right. Subsequent\n     * sources overwrite property assignments of previous sources.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.5.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = {\n     *   'a': [{ 'b': 2 }, { 'd': 4 }]\n     * };\n     *\n     * var other = {\n     *   'a': [{ 'c': 3 }, { 'e': 5 }]\n     * };\n     *\n     * _.merge(object, other);\n     * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n     */\n\n\n    var merge = createAssigner(function (object, source, srcIndex) {\n      baseMerge(object, source, srcIndex);\n    });\n    /**\n     * This method is like `_.merge` except that it accepts `customizer` which\n     * is invoked to produce the merged values of the destination and source\n     * properties. If `customizer` returns `undefined`, merging is handled by the\n     * method instead. The `customizer` is invoked with six arguments:\n     * (objValue, srcValue, key, object, source, stack).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} sources The source objects.\n     * @param {Function} customizer The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * function customizer(objValue, srcValue) {\n     *   if (_.isArray(objValue)) {\n     *     return objValue.concat(srcValue);\n     *   }\n     * }\n     *\n     * var object = { 'a': [1], 'b': [2] };\n     * var other = { 'a': [3], 'b': [4] };\n     *\n     * _.mergeWith(object, other, customizer);\n     * // => { 'a': [1, 3], 'b': [2, 4] }\n     */\n\n    var mergeWith = createAssigner(function (object, source, srcIndex, customizer) {\n      baseMerge(object, source, srcIndex, customizer);\n    });\n    /**\n     * The opposite of `_.pick`; this method creates an object composed of the\n     * own and inherited enumerable property paths of `object` that are not omitted.\n     *\n     * **Note:** This method is considerably slower than `_.pick`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The source object.\n     * @param {...(string|string[])} [paths] The property paths to omit.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': '2', 'c': 3 };\n     *\n     * _.omit(object, ['a', 'c']);\n     * // => { 'b': '2' }\n     */\n\n    var omit = flatRest(function (object, paths) {\n      var result = {};\n\n      if (object == null) {\n        return result;\n      }\n\n      var isDeep = false;\n      paths = arrayMap(paths, function (path) {\n        path = castPath(path, object);\n        isDeep || (isDeep = path.length > 1);\n        return path;\n      });\n      copyObject(object, getAllKeysIn(object), result);\n\n      if (isDeep) {\n        result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);\n      }\n\n      var length = paths.length;\n\n      while (length--) {\n        baseUnset(result, paths[length]);\n      }\n\n      return result;\n    });\n    /**\n     * The opposite of `_.pickBy`; this method creates an object composed of\n     * the own and inherited enumerable string keyed properties of `object` that\n     * `predicate` doesn't return truthy for. The predicate is invoked with two\n     * arguments: (value, key).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The source object.\n     * @param {Function} [predicate=_.identity] The function invoked per property.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': '2', 'c': 3 };\n     *\n     * _.omitBy(object, _.isNumber);\n     * // => { 'b': '2' }\n     */\n\n    function omitBy(object, predicate) {\n      return pickBy(object, negate(getIteratee(predicate)));\n    }\n    /**\n     * Creates an object composed of the picked `object` properties.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The source object.\n     * @param {...(string|string[])} [paths] The property paths to pick.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': '2', 'c': 3 };\n     *\n     * _.pick(object, ['a', 'c']);\n     * // => { 'a': 1, 'c': 3 }\n     */\n\n\n    var pick = flatRest(function (object, paths) {\n      return object == null ? {} : basePick(object, paths);\n    });\n    /**\n     * Creates an object composed of the `object` properties `predicate` returns\n     * truthy for. The predicate is invoked with two arguments: (value, key).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The source object.\n     * @param {Function} [predicate=_.identity] The function invoked per property.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': '2', 'c': 3 };\n     *\n     * _.pickBy(object, _.isNumber);\n     * // => { 'a': 1, 'c': 3 }\n     */\n\n    function pickBy(object, predicate) {\n      if (object == null) {\n        return {};\n      }\n\n      var props = arrayMap(getAllKeysIn(object), function (prop) {\n        return [prop];\n      });\n      predicate = getIteratee(predicate);\n      return basePickBy(object, props, function (value, path) {\n        return predicate(value, path[0]);\n      });\n    }\n    /**\n     * This method is like `_.get` except that if the resolved value is a\n     * function it's invoked with the `this` binding of its parent object and\n     * its result is returned.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the property to resolve.\n     * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n     * @returns {*} Returns the resolved value.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };\n     *\n     * _.result(object, 'a[0].b.c1');\n     * // => 3\n     *\n     * _.result(object, 'a[0].b.c2');\n     * // => 4\n     *\n     * _.result(object, 'a[0].b.c3', 'default');\n     * // => 'default'\n     *\n     * _.result(object, 'a[0].b.c3', _.constant('default'));\n     * // => 'default'\n     */\n\n\n    function result(object, path, defaultValue) {\n      path = castPath(path, object);\n      var index = -1,\n          length = path.length; // Ensure the loop is entered when path is empty.\n\n      if (!length) {\n        length = 1;\n        object = undefined;\n      }\n\n      while (++index < length) {\n        var value = object == null ? undefined : object[toKey(path[index])];\n\n        if (value === undefined) {\n          index = length;\n          value = defaultValue;\n        }\n\n        object = isFunction(value) ? value.call(object) : value;\n      }\n\n      return object;\n    }\n    /**\n     * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n     * it's created. Arrays are created for missing index properties while objects\n     * are created for all other missing properties. Use `_.setWith` to customize\n     * `path` creation.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.7.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n     *\n     * _.set(object, 'a[0].b.c', 4);\n     * console.log(object.a[0].b.c);\n     * // => 4\n     *\n     * _.set(object, ['x', '0', 'y', 'z'], 5);\n     * console.log(object.x[0].y.z);\n     * // => 5\n     */\n\n\n    function set(object, path, value) {\n      return object == null ? object : baseSet(object, path, value);\n    }\n    /**\n     * This method is like `_.set` except that it accepts `customizer` which is\n     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`\n     * path creation is handled by the method instead. The `customizer` is invoked\n     * with three arguments: (nsValue, key, nsObject).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {*} value The value to set.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = {};\n     *\n     * _.setWith(object, '[0][1]', 'a', Object);\n     * // => { '0': { '1': 'a' } }\n     */\n\n\n    function setWith(object, path, value, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return object == null ? object : baseSet(object, path, value, customizer);\n    }\n    /**\n     * Creates an array of own enumerable string keyed-value pairs for `object`\n     * which can be consumed by `_.fromPairs`. If `object` is a map or set, its\n     * entries are returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @alias entries\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the key-value pairs.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.toPairs(new Foo);\n     * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)\n     */\n\n\n    var toPairs = createToPairs(keys);\n    /**\n     * Creates an array of own and inherited enumerable string keyed-value pairs\n     * for `object` which can be consumed by `_.fromPairs`. If `object` is a map\n     * or set, its entries are returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @alias entriesIn\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the key-value pairs.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.toPairsIn(new Foo);\n     * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)\n     */\n\n    var toPairsIn = createToPairs(keysIn);\n    /**\n     * An alternative to `_.reduce`; this method transforms `object` to a new\n     * `accumulator` object which is the result of running each of its own\n     * enumerable string keyed properties thru `iteratee`, with each invocation\n     * potentially mutating the `accumulator` object. If `accumulator` is not\n     * provided, a new object with the same `[[Prototype]]` will be used. The\n     * iteratee is invoked with four arguments: (accumulator, value, key, object).\n     * Iteratee functions may exit iteration early by explicitly returning `false`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.3.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @param {*} [accumulator] The custom accumulator value.\n     * @returns {*} Returns the accumulated value.\n     * @example\n     *\n     * _.transform([2, 3, 4], function(result, n) {\n     *   result.push(n *= n);\n     *   return n % 2 == 0;\n     * }, []);\n     * // => [4, 9]\n     *\n     * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n     *   (result[value] || (result[value] = [])).push(key);\n     * }, {});\n     * // => { '1': ['a', 'c'], '2': ['b'] }\n     */\n\n    function transform(object, iteratee, accumulator) {\n      var isArr = isArray(object),\n          isArrLike = isArr || isBuffer(object) || isTypedArray(object);\n      iteratee = getIteratee(iteratee, 4);\n\n      if (accumulator == null) {\n        var Ctor = object && object.constructor;\n\n        if (isArrLike) {\n          accumulator = isArr ? new Ctor() : [];\n        } else if (isObject(object)) {\n          accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};\n        } else {\n          accumulator = {};\n        }\n      }\n\n      (isArrLike ? arrayEach : baseForOwn)(object, function (value, index, object) {\n        return iteratee(accumulator, value, index, object);\n      });\n      return accumulator;\n    }\n    /**\n     * Removes the property at `path` of `object`.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to unset.\n     * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n     * _.unset(object, 'a[0].b.c');\n     * // => true\n     *\n     * console.log(object);\n     * // => { 'a': [{ 'b': {} }] };\n     *\n     * _.unset(object, ['a', '0', 'b', 'c']);\n     * // => true\n     *\n     * console.log(object);\n     * // => { 'a': [{ 'b': {} }] };\n     */\n\n\n    function unset(object, path) {\n      return object == null ? true : baseUnset(object, path);\n    }\n    /**\n     * This method is like `_.set` except that accepts `updater` to produce the\n     * value to set. Use `_.updateWith` to customize `path` creation. The `updater`\n     * is invoked with one argument: (value).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.6.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {Function} updater The function to produce the updated value.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n     *\n     * _.update(object, 'a[0].b.c', function(n) { return n * n; });\n     * console.log(object.a[0].b.c);\n     * // => 9\n     *\n     * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });\n     * console.log(object.x[0].y.z);\n     * // => 0\n     */\n\n\n    function update(object, path, updater) {\n      return object == null ? object : baseUpdate(object, path, castFunction(updater));\n    }\n    /**\n     * This method is like `_.update` except that it accepts `customizer` which is\n     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`\n     * path creation is handled by the method instead. The `customizer` is invoked\n     * with three arguments: (nsValue, key, nsObject).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.6.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {Function} updater The function to produce the updated value.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = {};\n     *\n     * _.updateWith(object, '[0][1]', _.constant('a'), Object);\n     * // => { '0': { '1': 'a' } }\n     */\n\n\n    function updateWith(object, path, updater, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);\n    }\n    /**\n     * Creates an array of the own enumerable string keyed property values of `object`.\n     *\n     * **Note:** Non-object values are coerced to objects.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property values.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.values(new Foo);\n     * // => [1, 2] (iteration order is not guaranteed)\n     *\n     * _.values('hi');\n     * // => ['h', 'i']\n     */\n\n\n    function values(object) {\n      return object == null ? [] : baseValues(object, keys(object));\n    }\n    /**\n     * Creates an array of the own and inherited enumerable string keyed property\n     * values of `object`.\n     *\n     * **Note:** Non-object values are coerced to objects.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property values.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.valuesIn(new Foo);\n     * // => [1, 2, 3] (iteration order is not guaranteed)\n     */\n\n\n    function valuesIn(object) {\n      return object == null ? [] : baseValues(object, keysIn(object));\n    }\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Clamps `number` within the inclusive `lower` and `upper` bounds.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Number\n     * @param {number} number The number to clamp.\n     * @param {number} [lower] The lower bound.\n     * @param {number} upper The upper bound.\n     * @returns {number} Returns the clamped number.\n     * @example\n     *\n     * _.clamp(-10, -5, 5);\n     * // => -5\n     *\n     * _.clamp(10, -5, 5);\n     * // => 5\n     */\n\n\n    function clamp(number, lower, upper) {\n      if (upper === undefined) {\n        upper = lower;\n        lower = undefined;\n      }\n\n      if (upper !== undefined) {\n        upper = toNumber(upper);\n        upper = upper === upper ? upper : 0;\n      }\n\n      if (lower !== undefined) {\n        lower = toNumber(lower);\n        lower = lower === lower ? lower : 0;\n      }\n\n      return baseClamp(toNumber(number), lower, upper);\n    }\n    /**\n     * Checks if `n` is between `start` and up to, but not including, `end`. If\n     * `end` is not specified, it's set to `start` with `start` then set to `0`.\n     * If `start` is greater than `end` the params are swapped to support\n     * negative ranges.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.3.0\n     * @category Number\n     * @param {number} number The number to check.\n     * @param {number} [start=0] The start of the range.\n     * @param {number} end The end of the range.\n     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n     * @see _.range, _.rangeRight\n     * @example\n     *\n     * _.inRange(3, 2, 4);\n     * // => true\n     *\n     * _.inRange(4, 8);\n     * // => true\n     *\n     * _.inRange(4, 2);\n     * // => false\n     *\n     * _.inRange(2, 2);\n     * // => false\n     *\n     * _.inRange(1.2, 2);\n     * // => true\n     *\n     * _.inRange(5.2, 4);\n     * // => false\n     *\n     * _.inRange(-3, -2, -6);\n     * // => true\n     */\n\n\n    function inRange(number, start, end) {\n      start = toFinite(start);\n\n      if (end === undefined) {\n        end = start;\n        start = 0;\n      } else {\n        end = toFinite(end);\n      }\n\n      number = toNumber(number);\n      return baseInRange(number, start, end);\n    }\n    /**\n     * Produces a random number between the inclusive `lower` and `upper` bounds.\n     * If only one argument is provided a number between `0` and the given number\n     * is returned. If `floating` is `true`, or either `lower` or `upper` are\n     * floats, a floating-point number is returned instead of an integer.\n     *\n     * **Note:** JavaScript follows the IEEE-754 standard for resolving\n     * floating-point values which can produce unexpected results.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.7.0\n     * @category Number\n     * @param {number} [lower=0] The lower bound.\n     * @param {number} [upper=1] The upper bound.\n     * @param {boolean} [floating] Specify returning a floating-point number.\n     * @returns {number} Returns the random number.\n     * @example\n     *\n     * _.random(0, 5);\n     * // => an integer between 0 and 5\n     *\n     * _.random(5);\n     * // => also an integer between 0 and 5\n     *\n     * _.random(5, true);\n     * // => a floating-point number between 0 and 5\n     *\n     * _.random(1.2, 5.2);\n     * // => a floating-point number between 1.2 and 5.2\n     */\n\n\n    function random(lower, upper, floating) {\n      if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {\n        upper = floating = undefined;\n      }\n\n      if (floating === undefined) {\n        if (typeof upper == 'boolean') {\n          floating = upper;\n          upper = undefined;\n        } else if (typeof lower == 'boolean') {\n          floating = lower;\n          lower = undefined;\n        }\n      }\n\n      if (lower === undefined && upper === undefined) {\n        lower = 0;\n        upper = 1;\n      } else {\n        lower = toFinite(lower);\n\n        if (upper === undefined) {\n          upper = lower;\n          lower = 0;\n        } else {\n          upper = toFinite(upper);\n        }\n      }\n\n      if (lower > upper) {\n        var temp = lower;\n        lower = upper;\n        upper = temp;\n      }\n\n      if (floating || lower % 1 || upper % 1) {\n        var rand = nativeRandom();\n        return nativeMin(lower + rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1))), upper);\n      }\n\n      return baseRandom(lower, upper);\n    }\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the camel cased string.\n     * @example\n     *\n     * _.camelCase('Foo Bar');\n     * // => 'fooBar'\n     *\n     * _.camelCase('--foo-bar--');\n     * // => 'fooBar'\n     *\n     * _.camelCase('__FOO_BAR__');\n     * // => 'fooBar'\n     */\n\n\n    var camelCase = createCompounder(function (result, word, index) {\n      word = word.toLowerCase();\n      return result + (index ? capitalize(word) : word);\n    });\n    /**\n     * Converts the first character of `string` to upper case and the remaining\n     * to lower case.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to capitalize.\n     * @returns {string} Returns the capitalized string.\n     * @example\n     *\n     * _.capitalize('FRED');\n     * // => 'Fred'\n     */\n\n    function capitalize(string) {\n      return upperFirst(toString(string).toLowerCase());\n    }\n    /**\n     * Deburrs `string` by converting\n     * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n     * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n     * letters to basic Latin letters and removing\n     * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to deburr.\n     * @returns {string} Returns the deburred string.\n     * @example\n     *\n     * _.deburr('déjà vu');\n     * // => 'deja vu'\n     */\n\n\n    function deburr(string) {\n      string = toString(string);\n      return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n    }\n    /**\n     * Checks if `string` ends with the given target string.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to inspect.\n     * @param {string} [target] The string to search for.\n     * @param {number} [position=string.length] The position to search up to.\n     * @returns {boolean} Returns `true` if `string` ends with `target`,\n     *  else `false`.\n     * @example\n     *\n     * _.endsWith('abc', 'c');\n     * // => true\n     *\n     * _.endsWith('abc', 'b');\n     * // => false\n     *\n     * _.endsWith('abc', 'b', 2);\n     * // => true\n     */\n\n\n    function endsWith(string, target, position) {\n      string = toString(string);\n      target = baseToString(target);\n      var length = string.length;\n      position = position === undefined ? length : baseClamp(toInteger(position), 0, length);\n      var end = position;\n      position -= target.length;\n      return position >= 0 && string.slice(position, end) == target;\n    }\n    /**\n     * Converts the characters \"&\", \"<\", \">\", '\"', and \"'\" in `string` to their\n     * corresponding HTML entities.\n     *\n     * **Note:** No other characters are escaped. To escape additional\n     * characters use a third-party library like [_he_](https://mths.be/he).\n     *\n     * Though the \">\" character is escaped for symmetry, characters like\n     * \">\" and \"/\" don't need escaping in HTML and have no special meaning\n     * unless they're part of a tag or unquoted attribute value. See\n     * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)\n     * (under \"semi-related fun fact\") for more details.\n     *\n     * When working with HTML you should always\n     * [quote attribute values](http://wonko.com/post/html-escaping) to reduce\n     * XSS vectors.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category String\n     * @param {string} [string=''] The string to escape.\n     * @returns {string} Returns the escaped string.\n     * @example\n     *\n     * _.escape('fred, barney, & pebbles');\n     * // => 'fred, barney, &amp; pebbles'\n     */\n\n\n    function escape(string) {\n      string = toString(string);\n      return string && reHasUnescapedHtml.test(string) ? string.replace(reUnescapedHtml, escapeHtmlChar) : string;\n    }\n    /**\n     * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n     * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to escape.\n     * @returns {string} Returns the escaped string.\n     * @example\n     *\n     * _.escapeRegExp('[lodash](https://lodash.com/)');\n     * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n     */\n\n\n    function escapeRegExp(string) {\n      string = toString(string);\n      return string && reHasRegExpChar.test(string) ? string.replace(reRegExpChar, '\\\\$&') : string;\n    }\n    /**\n     * Converts `string` to\n     * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the kebab cased string.\n     * @example\n     *\n     * _.kebabCase('Foo Bar');\n     * // => 'foo-bar'\n     *\n     * _.kebabCase('fooBar');\n     * // => 'foo-bar'\n     *\n     * _.kebabCase('__FOO_BAR__');\n     * // => 'foo-bar'\n     */\n\n\n    var kebabCase = createCompounder(function (result, word, index) {\n      return result + (index ? '-' : '') + word.toLowerCase();\n    });\n    /**\n     * Converts `string`, as space separated words, to lower case.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the lower cased string.\n     * @example\n     *\n     * _.lowerCase('--Foo-Bar--');\n     * // => 'foo bar'\n     *\n     * _.lowerCase('fooBar');\n     * // => 'foo bar'\n     *\n     * _.lowerCase('__FOO_BAR__');\n     * // => 'foo bar'\n     */\n\n    var lowerCase = createCompounder(function (result, word, index) {\n      return result + (index ? ' ' : '') + word.toLowerCase();\n    });\n    /**\n     * Converts the first character of `string` to lower case.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the converted string.\n     * @example\n     *\n     * _.lowerFirst('Fred');\n     * // => 'fred'\n     *\n     * _.lowerFirst('FRED');\n     * // => 'fRED'\n     */\n\n    var lowerFirst = createCaseFirst('toLowerCase');\n    /**\n     * Pads `string` on the left and right sides if it's shorter than `length`.\n     * Padding characters are truncated if they can't be evenly divided by `length`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to pad.\n     * @param {number} [length=0] The padding length.\n     * @param {string} [chars=' '] The string used as padding.\n     * @returns {string} Returns the padded string.\n     * @example\n     *\n     * _.pad('abc', 8);\n     * // => '  abc   '\n     *\n     * _.pad('abc', 8, '_-');\n     * // => '_-abc_-_'\n     *\n     * _.pad('abc', 3);\n     * // => 'abc'\n     */\n\n    function pad(string, length, chars) {\n      string = toString(string);\n      length = toInteger(length);\n      var strLength = length ? stringSize(string) : 0;\n\n      if (!length || strLength >= length) {\n        return string;\n      }\n\n      var mid = (length - strLength) / 2;\n      return createPadding(nativeFloor(mid), chars) + string + createPadding(nativeCeil(mid), chars);\n    }\n    /**\n     * Pads `string` on the right side if it's shorter than `length`. Padding\n     * characters are truncated if they exceed `length`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to pad.\n     * @param {number} [length=0] The padding length.\n     * @param {string} [chars=' '] The string used as padding.\n     * @returns {string} Returns the padded string.\n     * @example\n     *\n     * _.padEnd('abc', 6);\n     * // => 'abc   '\n     *\n     * _.padEnd('abc', 6, '_-');\n     * // => 'abc_-_'\n     *\n     * _.padEnd('abc', 3);\n     * // => 'abc'\n     */\n\n\n    function padEnd(string, length, chars) {\n      string = toString(string);\n      length = toInteger(length);\n      var strLength = length ? stringSize(string) : 0;\n      return length && strLength < length ? string + createPadding(length - strLength, chars) : string;\n    }\n    /**\n     * Pads `string` on the left side if it's shorter than `length`. Padding\n     * characters are truncated if they exceed `length`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to pad.\n     * @param {number} [length=0] The padding length.\n     * @param {string} [chars=' '] The string used as padding.\n     * @returns {string} Returns the padded string.\n     * @example\n     *\n     * _.padStart('abc', 6);\n     * // => '   abc'\n     *\n     * _.padStart('abc', 6, '_-');\n     * // => '_-_abc'\n     *\n     * _.padStart('abc', 3);\n     * // => 'abc'\n     */\n\n\n    function padStart(string, length, chars) {\n      string = toString(string);\n      length = toInteger(length);\n      var strLength = length ? stringSize(string) : 0;\n      return length && strLength < length ? createPadding(length - strLength, chars) + string : string;\n    }\n    /**\n     * Converts `string` to an integer of the specified radix. If `radix` is\n     * `undefined` or `0`, a `radix` of `10` is used unless `value` is a\n     * hexadecimal, in which case a `radix` of `16` is used.\n     *\n     * **Note:** This method aligns with the\n     * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.1.0\n     * @category String\n     * @param {string} string The string to convert.\n     * @param {number} [radix=10] The radix to interpret `value` by.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {number} Returns the converted integer.\n     * @example\n     *\n     * _.parseInt('08');\n     * // => 8\n     *\n     * _.map(['6', '08', '10'], _.parseInt);\n     * // => [6, 8, 10]\n     */\n\n\n    function parseInt(string, radix, guard) {\n      if (guard || radix == null) {\n        radix = 0;\n      } else if (radix) {\n        radix = +radix;\n      }\n\n      return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);\n    }\n    /**\n     * Repeats the given string `n` times.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to repeat.\n     * @param {number} [n=1] The number of times to repeat the string.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {string} Returns the repeated string.\n     * @example\n     *\n     * _.repeat('*', 3);\n     * // => '***'\n     *\n     * _.repeat('abc', 2);\n     * // => 'abcabc'\n     *\n     * _.repeat('abc', 0);\n     * // => ''\n     */\n\n\n    function repeat(string, n, guard) {\n      if (guard ? isIterateeCall(string, n, guard) : n === undefined) {\n        n = 1;\n      } else {\n        n = toInteger(n);\n      }\n\n      return baseRepeat(toString(string), n);\n    }\n    /**\n     * Replaces matches for `pattern` in `string` with `replacement`.\n     *\n     * **Note:** This method is based on\n     * [`String#replace`](https://mdn.io/String/replace).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to modify.\n     * @param {RegExp|string} pattern The pattern to replace.\n     * @param {Function|string} replacement The match replacement.\n     * @returns {string} Returns the modified string.\n     * @example\n     *\n     * _.replace('Hi Fred', 'Fred', 'Barney');\n     * // => 'Hi Barney'\n     */\n\n\n    function replace() {\n      var args = arguments,\n          string = toString(args[0]);\n      return args.length < 3 ? string : string.replace(args[1], args[2]);\n    }\n    /**\n     * Converts `string` to\n     * [snake case](https://en.wikipedia.org/wiki/Snake_case).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the snake cased string.\n     * @example\n     *\n     * _.snakeCase('Foo Bar');\n     * // => 'foo_bar'\n     *\n     * _.snakeCase('fooBar');\n     * // => 'foo_bar'\n     *\n     * _.snakeCase('--FOO-BAR--');\n     * // => 'foo_bar'\n     */\n\n\n    var snakeCase = createCompounder(function (result, word, index) {\n      return result + (index ? '_' : '') + word.toLowerCase();\n    });\n    /**\n     * Splits `string` by `separator`.\n     *\n     * **Note:** This method is based on\n     * [`String#split`](https://mdn.io/String/split).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to split.\n     * @param {RegExp|string} separator The separator pattern to split by.\n     * @param {number} [limit] The length to truncate results to.\n     * @returns {Array} Returns the string segments.\n     * @example\n     *\n     * _.split('a-b-c', '-', 2);\n     * // => ['a', 'b']\n     */\n\n    function split(string, separator, limit) {\n      if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {\n        separator = limit = undefined;\n      }\n\n      limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;\n\n      if (!limit) {\n        return [];\n      }\n\n      string = toString(string);\n\n      if (string && (typeof separator == 'string' || separator != null && !isRegExp(separator))) {\n        separator = baseToString(separator);\n\n        if (!separator && hasUnicode(string)) {\n          return castSlice(stringToArray(string), 0, limit);\n        }\n      }\n\n      return string.split(separator, limit);\n    }\n    /**\n     * Converts `string` to\n     * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.1.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the start cased string.\n     * @example\n     *\n     * _.startCase('--foo-bar--');\n     * // => 'Foo Bar'\n     *\n     * _.startCase('fooBar');\n     * // => 'Foo Bar'\n     *\n     * _.startCase('__FOO_BAR__');\n     * // => 'FOO BAR'\n     */\n\n\n    var startCase = createCompounder(function (result, word, index) {\n      return result + (index ? ' ' : '') + upperFirst(word);\n    });\n    /**\n     * Checks if `string` starts with the given target string.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to inspect.\n     * @param {string} [target] The string to search for.\n     * @param {number} [position=0] The position to search from.\n     * @returns {boolean} Returns `true` if `string` starts with `target`,\n     *  else `false`.\n     * @example\n     *\n     * _.startsWith('abc', 'a');\n     * // => true\n     *\n     * _.startsWith('abc', 'b');\n     * // => false\n     *\n     * _.startsWith('abc', 'b', 1);\n     * // => true\n     */\n\n    function startsWith(string, target, position) {\n      string = toString(string);\n      position = position == null ? 0 : baseClamp(toInteger(position), 0, string.length);\n      target = baseToString(target);\n      return string.slice(position, position + target.length) == target;\n    }\n    /**\n     * Creates a compiled template function that can interpolate data properties\n     * in \"interpolate\" delimiters, HTML-escape interpolated data properties in\n     * \"escape\" delimiters, and execute JavaScript in \"evaluate\" delimiters. Data\n     * properties may be accessed as free variables in the template. If a setting\n     * object is given, it takes precedence over `_.templateSettings` values.\n     *\n     * **Note:** In the development build `_.template` utilizes\n     * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)\n     * for easier debugging.\n     *\n     * For more information on precompiling templates see\n     * [lodash's custom builds documentation](https://lodash.com/custom-builds).\n     *\n     * For more information on Chrome extension sandboxes see\n     * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category String\n     * @param {string} [string=''] The template string.\n     * @param {Object} [options={}] The options object.\n     * @param {RegExp} [options.escape=_.templateSettings.escape]\n     *  The HTML \"escape\" delimiter.\n     * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]\n     *  The \"evaluate\" delimiter.\n     * @param {Object} [options.imports=_.templateSettings.imports]\n     *  An object to import into the template as free variables.\n     * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]\n     *  The \"interpolate\" delimiter.\n     * @param {string} [options.sourceURL='lodash.templateSources[n]']\n     *  The sourceURL of the compiled template.\n     * @param {string} [options.variable='obj']\n     *  The data object variable name.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Function} Returns the compiled template function.\n     * @example\n     *\n     * // Use the \"interpolate\" delimiter to create a compiled template.\n     * var compiled = _.template('hello <%= user %>!');\n     * compiled({ 'user': 'fred' });\n     * // => 'hello fred!'\n     *\n     * // Use the HTML \"escape\" delimiter to escape data property values.\n     * var compiled = _.template('<b><%- value %></b>');\n     * compiled({ 'value': '<script>' });\n     * // => '<b>&lt;script&gt;</b>'\n     *\n     * // Use the \"evaluate\" delimiter to execute JavaScript and generate HTML.\n     * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');\n     * compiled({ 'users': ['fred', 'barney'] });\n     * // => '<li>fred</li><li>barney</li>'\n     *\n     * // Use the internal `print` function in \"evaluate\" delimiters.\n     * var compiled = _.template('<% print(\"hello \" + user); %>!');\n     * compiled({ 'user': 'barney' });\n     * // => 'hello barney!'\n     *\n     * // Use the ES template literal delimiter as an \"interpolate\" delimiter.\n     * // Disable support by replacing the \"interpolate\" delimiter.\n     * var compiled = _.template('hello ${ user }!');\n     * compiled({ 'user': 'pebbles' });\n     * // => 'hello pebbles!'\n     *\n     * // Use backslashes to treat delimiters as plain text.\n     * var compiled = _.template('<%= \"\\\\<%- value %\\\\>\" %>');\n     * compiled({ 'value': 'ignored' });\n     * // => '<%- value %>'\n     *\n     * // Use the `imports` option to import `jQuery` as `jq`.\n     * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';\n     * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });\n     * compiled({ 'users': ['fred', 'barney'] });\n     * // => '<li>fred</li><li>barney</li>'\n     *\n     * // Use the `sourceURL` option to specify a custom sourceURL for the template.\n     * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });\n     * compiled(data);\n     * // => Find the source of \"greeting.jst\" under the Sources tab or Resources panel of the web inspector.\n     *\n     * // Use the `variable` option to ensure a with-statement isn't used in the compiled template.\n     * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });\n     * compiled.source;\n     * // => function(data) {\n     * //   var __t, __p = '';\n     * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';\n     * //   return __p;\n     * // }\n     *\n     * // Use custom template delimiters.\n     * _.templateSettings.interpolate = /{{([\\s\\S]+?)}}/g;\n     * var compiled = _.template('hello {{ user }}!');\n     * compiled({ 'user': 'mustache' });\n     * // => 'hello mustache!'\n     *\n     * // Use the `source` property to inline compiled templates for meaningful\n     * // line numbers in error messages and stack traces.\n     * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\\\n     *   var JST = {\\\n     *     \"main\": ' + _.template(mainText).source + '\\\n     *   };\\\n     * ');\n     */\n\n\n    function template(string, options, guard) {\n      // Based on John Resig's `tmpl` implementation\n      // (http://ejohn.org/blog/javascript-micro-templating/)\n      // and Laura Doktorova's doT.js (https://github.com/olado/doT).\n      var settings = lodash.templateSettings;\n\n      if (guard && isIterateeCall(string, options, guard)) {\n        options = undefined;\n      }\n\n      string = toString(string);\n      options = assignInWith({}, options, settings, customDefaultsAssignIn);\n      var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),\n          importsKeys = keys(imports),\n          importsValues = baseValues(imports, importsKeys);\n      var isEscaping,\n          isEvaluating,\n          index = 0,\n          interpolate = options.interpolate || reNoMatch,\n          source = \"__p += '\"; // Compile the regexp to match each delimiter.\n\n      var reDelimiters = RegExp((options.escape || reNoMatch).source + '|' + interpolate.source + '|' + (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' + (options.evaluate || reNoMatch).source + '|$', 'g'); // Use a sourceURL for easier debugging.\n      // The sourceURL gets injected into the source that's eval-ed, so be careful\n      // to normalize all kinds of whitespace, so e.g. newlines (and unicode versions of it) can't sneak in\n      // and escape the comment, thus injecting code that gets evaled.\n\n      var sourceURL = '//# sourceURL=' + (hasOwnProperty.call(options, 'sourceURL') ? (options.sourceURL + '').replace(/\\s/g, ' ') : 'lodash.templateSources[' + ++templateCounter + ']') + '\\n';\n      string.replace(reDelimiters, function (match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {\n        interpolateValue || (interpolateValue = esTemplateValue); // Escape characters that can't be included in string literals.\n\n        source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar); // Replace delimiters with snippets.\n\n        if (escapeValue) {\n          isEscaping = true;\n          source += \"' +\\n__e(\" + escapeValue + \") +\\n'\";\n        }\n\n        if (evaluateValue) {\n          isEvaluating = true;\n          source += \"';\\n\" + evaluateValue + \";\\n__p += '\";\n        }\n\n        if (interpolateValue) {\n          source += \"' +\\n((__t = (\" + interpolateValue + \")) == null ? '' : __t) +\\n'\";\n        }\n\n        index = offset + match.length; // The JS engine embedded in Adobe products needs `match` returned in\n        // order to produce the correct `offset` value.\n\n        return match;\n      });\n      source += \"';\\n\"; // If `variable` is not specified wrap a with-statement around the generated\n      // code to add the data object to the top of the scope chain.\n\n      var variable = hasOwnProperty.call(options, 'variable') && options.variable;\n\n      if (!variable) {\n        source = 'with (obj) {\\n' + source + '\\n}\\n';\n      } // Cleanup code by stripping empty strings.\n\n\n      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source).replace(reEmptyStringMiddle, '$1').replace(reEmptyStringTrailing, '$1;'); // Frame code as the function body.\n\n      source = 'function(' + (variable || 'obj') + ') {\\n' + (variable ? '' : 'obj || (obj = {});\\n') + \"var __t, __p = ''\" + (isEscaping ? ', __e = _.escape' : '') + (isEvaluating ? ', __j = Array.prototype.join;\\n' + \"function print() { __p += __j.call(arguments, '') }\\n\" : ';\\n') + source + 'return __p\\n}';\n      var result = attempt(function () {\n        return Function(importsKeys, sourceURL + 'return ' + source).apply(undefined, importsValues);\n      }); // Provide the compiled function's source by its `toString` method or\n      // the `source` property as a convenience for inlining compiled templates.\n\n      result.source = source;\n\n      if (isError(result)) {\n        throw result;\n      }\n\n      return result;\n    }\n    /**\n     * Converts `string`, as a whole, to lower case just like\n     * [String#toLowerCase](https://mdn.io/toLowerCase).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the lower cased string.\n     * @example\n     *\n     * _.toLower('--Foo-Bar--');\n     * // => '--foo-bar--'\n     *\n     * _.toLower('fooBar');\n     * // => 'foobar'\n     *\n     * _.toLower('__FOO_BAR__');\n     * // => '__foo_bar__'\n     */\n\n\n    function toLower(value) {\n      return toString(value).toLowerCase();\n    }\n    /**\n     * Converts `string`, as a whole, to upper case just like\n     * [String#toUpperCase](https://mdn.io/toUpperCase).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the upper cased string.\n     * @example\n     *\n     * _.toUpper('--foo-bar--');\n     * // => '--FOO-BAR--'\n     *\n     * _.toUpper('fooBar');\n     * // => 'FOOBAR'\n     *\n     * _.toUpper('__foo_bar__');\n     * // => '__FOO_BAR__'\n     */\n\n\n    function toUpper(value) {\n      return toString(value).toUpperCase();\n    }\n    /**\n     * Removes leading and trailing whitespace or specified characters from `string`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to trim.\n     * @param {string} [chars=whitespace] The characters to trim.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {string} Returns the trimmed string.\n     * @example\n     *\n     * _.trim('  abc  ');\n     * // => 'abc'\n     *\n     * _.trim('-_-abc-_-', '_-');\n     * // => 'abc'\n     *\n     * _.map(['  foo  ', '  bar  '], _.trim);\n     * // => ['foo', 'bar']\n     */\n\n\n    function trim(string, chars, guard) {\n      string = toString(string);\n\n      if (string && (guard || chars === undefined)) {\n        return string.replace(reTrim, '');\n      }\n\n      if (!string || !(chars = baseToString(chars))) {\n        return string;\n      }\n\n      var strSymbols = stringToArray(string),\n          chrSymbols = stringToArray(chars),\n          start = charsStartIndex(strSymbols, chrSymbols),\n          end = charsEndIndex(strSymbols, chrSymbols) + 1;\n      return castSlice(strSymbols, start, end).join('');\n    }\n    /**\n     * Removes trailing whitespace or specified characters from `string`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to trim.\n     * @param {string} [chars=whitespace] The characters to trim.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {string} Returns the trimmed string.\n     * @example\n     *\n     * _.trimEnd('  abc  ');\n     * // => '  abc'\n     *\n     * _.trimEnd('-_-abc-_-', '_-');\n     * // => '-_-abc'\n     */\n\n\n    function trimEnd(string, chars, guard) {\n      string = toString(string);\n\n      if (string && (guard || chars === undefined)) {\n        return string.replace(reTrimEnd, '');\n      }\n\n      if (!string || !(chars = baseToString(chars))) {\n        return string;\n      }\n\n      var strSymbols = stringToArray(string),\n          end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;\n      return castSlice(strSymbols, 0, end).join('');\n    }\n    /**\n     * Removes leading whitespace or specified characters from `string`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to trim.\n     * @param {string} [chars=whitespace] The characters to trim.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {string} Returns the trimmed string.\n     * @example\n     *\n     * _.trimStart('  abc  ');\n     * // => 'abc  '\n     *\n     * _.trimStart('-_-abc-_-', '_-');\n     * // => 'abc-_-'\n     */\n\n\n    function trimStart(string, chars, guard) {\n      string = toString(string);\n\n      if (string && (guard || chars === undefined)) {\n        return string.replace(reTrimStart, '');\n      }\n\n      if (!string || !(chars = baseToString(chars))) {\n        return string;\n      }\n\n      var strSymbols = stringToArray(string),\n          start = charsStartIndex(strSymbols, stringToArray(chars));\n      return castSlice(strSymbols, start).join('');\n    }\n    /**\n     * Truncates `string` if it's longer than the given maximum string length.\n     * The last characters of the truncated string are replaced with the omission\n     * string which defaults to \"...\".\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to truncate.\n     * @param {Object} [options={}] The options object.\n     * @param {number} [options.length=30] The maximum string length.\n     * @param {string} [options.omission='...'] The string to indicate text is omitted.\n     * @param {RegExp|string} [options.separator] The separator pattern to truncate to.\n     * @returns {string} Returns the truncated string.\n     * @example\n     *\n     * _.truncate('hi-diddly-ho there, neighborino');\n     * // => 'hi-diddly-ho there, neighbo...'\n     *\n     * _.truncate('hi-diddly-ho there, neighborino', {\n     *   'length': 24,\n     *   'separator': ' '\n     * });\n     * // => 'hi-diddly-ho there,...'\n     *\n     * _.truncate('hi-diddly-ho there, neighborino', {\n     *   'length': 24,\n     *   'separator': /,? +/\n     * });\n     * // => 'hi-diddly-ho there...'\n     *\n     * _.truncate('hi-diddly-ho there, neighborino', {\n     *   'omission': ' [...]'\n     * });\n     * // => 'hi-diddly-ho there, neig [...]'\n     */\n\n\n    function truncate(string, options) {\n      var length = DEFAULT_TRUNC_LENGTH,\n          omission = DEFAULT_TRUNC_OMISSION;\n\n      if (isObject(options)) {\n        var separator = 'separator' in options ? options.separator : separator;\n        length = 'length' in options ? toInteger(options.length) : length;\n        omission = 'omission' in options ? baseToString(options.omission) : omission;\n      }\n\n      string = toString(string);\n      var strLength = string.length;\n\n      if (hasUnicode(string)) {\n        var strSymbols = stringToArray(string);\n        strLength = strSymbols.length;\n      }\n\n      if (length >= strLength) {\n        return string;\n      }\n\n      var end = length - stringSize(omission);\n\n      if (end < 1) {\n        return omission;\n      }\n\n      var result = strSymbols ? castSlice(strSymbols, 0, end).join('') : string.slice(0, end);\n\n      if (separator === undefined) {\n        return result + omission;\n      }\n\n      if (strSymbols) {\n        end += result.length - end;\n      }\n\n      if (isRegExp(separator)) {\n        if (string.slice(end).search(separator)) {\n          var match,\n              substring = result;\n\n          if (!separator.global) {\n            separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');\n          }\n\n          separator.lastIndex = 0;\n\n          while (match = separator.exec(substring)) {\n            var newEnd = match.index;\n          }\n\n          result = result.slice(0, newEnd === undefined ? end : newEnd);\n        }\n      } else if (string.indexOf(baseToString(separator), end) != end) {\n        var index = result.lastIndexOf(separator);\n\n        if (index > -1) {\n          result = result.slice(0, index);\n        }\n      }\n\n      return result + omission;\n    }\n    /**\n     * The inverse of `_.escape`; this method converts the HTML entities\n     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to\n     * their corresponding characters.\n     *\n     * **Note:** No other HTML entities are unescaped. To unescape additional\n     * HTML entities use a third-party library like [_he_](https://mths.be/he).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.6.0\n     * @category String\n     * @param {string} [string=''] The string to unescape.\n     * @returns {string} Returns the unescaped string.\n     * @example\n     *\n     * _.unescape('fred, barney, &amp; pebbles');\n     * // => 'fred, barney, & pebbles'\n     */\n\n\n    function unescape(string) {\n      string = toString(string);\n      return string && reHasEscapedHtml.test(string) ? string.replace(reEscapedHtml, unescapeHtmlChar) : string;\n    }\n    /**\n     * Converts `string`, as space separated words, to upper case.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the upper cased string.\n     * @example\n     *\n     * _.upperCase('--foo-bar');\n     * // => 'FOO BAR'\n     *\n     * _.upperCase('fooBar');\n     * // => 'FOO BAR'\n     *\n     * _.upperCase('__foo_bar__');\n     * // => 'FOO BAR'\n     */\n\n\n    var upperCase = createCompounder(function (result, word, index) {\n      return result + (index ? ' ' : '') + word.toUpperCase();\n    });\n    /**\n     * Converts the first character of `string` to upper case.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the converted string.\n     * @example\n     *\n     * _.upperFirst('fred');\n     * // => 'Fred'\n     *\n     * _.upperFirst('FRED');\n     * // => 'FRED'\n     */\n\n    var upperFirst = createCaseFirst('toUpperCase');\n    /**\n     * Splits `string` into an array of its words.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to inspect.\n     * @param {RegExp|string} [pattern] The pattern to match words.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the words of `string`.\n     * @example\n     *\n     * _.words('fred, barney, & pebbles');\n     * // => ['fred', 'barney', 'pebbles']\n     *\n     * _.words('fred, barney, & pebbles', /[^, ]+/g);\n     * // => ['fred', 'barney', '&', 'pebbles']\n     */\n\n    function words(string, pattern, guard) {\n      string = toString(string);\n      pattern = guard ? undefined : pattern;\n\n      if (pattern === undefined) {\n        return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);\n      }\n\n      return string.match(pattern) || [];\n    }\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Attempts to invoke `func`, returning either the result or the caught error\n     * object. Any additional arguments are provided to `func` when it's invoked.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Util\n     * @param {Function} func The function to attempt.\n     * @param {...*} [args] The arguments to invoke `func` with.\n     * @returns {*} Returns the `func` result or error object.\n     * @example\n     *\n     * // Avoid throwing errors for invalid selectors.\n     * var elements = _.attempt(function(selector) {\n     *   return document.querySelectorAll(selector);\n     * }, '>_>');\n     *\n     * if (_.isError(elements)) {\n     *   elements = [];\n     * }\n     */\n\n\n    var attempt = baseRest(function (func, args) {\n      try {\n        return apply(func, undefined, args);\n      } catch (e) {\n        return isError(e) ? e : new Error(e);\n      }\n    });\n    /**\n     * Binds methods of an object to the object itself, overwriting the existing\n     * method.\n     *\n     * **Note:** This method doesn't set the \"length\" property of bound functions.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {Object} object The object to bind and assign the bound methods to.\n     * @param {...(string|string[])} methodNames The object method names to bind.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var view = {\n     *   'label': 'docs',\n     *   'click': function() {\n     *     console.log('clicked ' + this.label);\n     *   }\n     * };\n     *\n     * _.bindAll(view, ['click']);\n     * jQuery(element).on('click', view.click);\n     * // => Logs 'clicked docs' when clicked.\n     */\n\n    var bindAll = flatRest(function (object, methodNames) {\n      arrayEach(methodNames, function (key) {\n        key = toKey(key);\n        baseAssignValue(object, key, bind(object[key], object));\n      });\n      return object;\n    });\n    /**\n     * Creates a function that iterates over `pairs` and invokes the corresponding\n     * function of the first predicate to return truthy. The predicate-function\n     * pairs are invoked with the `this` binding and arguments of the created\n     * function.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {Array} pairs The predicate-function pairs.\n     * @returns {Function} Returns the new composite function.\n     * @example\n     *\n     * var func = _.cond([\n     *   [_.matches({ 'a': 1 }),           _.constant('matches A')],\n     *   [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],\n     *   [_.stubTrue,                      _.constant('no match')]\n     * ]);\n     *\n     * func({ 'a': 1, 'b': 2 });\n     * // => 'matches A'\n     *\n     * func({ 'a': 0, 'b': 1 });\n     * // => 'matches B'\n     *\n     * func({ 'a': '1', 'b': '2' });\n     * // => 'no match'\n     */\n\n    function cond(pairs) {\n      var length = pairs == null ? 0 : pairs.length,\n          toIteratee = getIteratee();\n      pairs = !length ? [] : arrayMap(pairs, function (pair) {\n        if (typeof pair[1] != 'function') {\n          throw new TypeError(FUNC_ERROR_TEXT);\n        }\n\n        return [toIteratee(pair[0]), pair[1]];\n      });\n      return baseRest(function (args) {\n        var index = -1;\n\n        while (++index < length) {\n          var pair = pairs[index];\n\n          if (apply(pair[0], this, args)) {\n            return apply(pair[1], this, args);\n          }\n        }\n      });\n    }\n    /**\n     * Creates a function that invokes the predicate properties of `source` with\n     * the corresponding property values of a given object, returning `true` if\n     * all predicates return truthy, else `false`.\n     *\n     * **Note:** The created function is equivalent to `_.conformsTo` with\n     * `source` partially applied.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {Object} source The object of property predicates to conform to.\n     * @returns {Function} Returns the new spec function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': 2, 'b': 1 },\n     *   { 'a': 1, 'b': 2 }\n     * ];\n     *\n     * _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } }));\n     * // => [{ 'a': 1, 'b': 2 }]\n     */\n\n\n    function conforms(source) {\n      return baseConforms(baseClone(source, CLONE_DEEP_FLAG));\n    }\n    /**\n     * Creates a function that returns `value`.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Util\n     * @param {*} value The value to return from the new function.\n     * @returns {Function} Returns the new constant function.\n     * @example\n     *\n     * var objects = _.times(2, _.constant({ 'a': 1 }));\n     *\n     * console.log(objects);\n     * // => [{ 'a': 1 }, { 'a': 1 }]\n     *\n     * console.log(objects[0] === objects[1]);\n     * // => true\n     */\n\n\n    function constant(value) {\n      return function () {\n        return value;\n      };\n    }\n    /**\n     * Checks `value` to determine whether a default value should be returned in\n     * its place. The `defaultValue` is returned if `value` is `NaN`, `null`,\n     * or `undefined`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.14.0\n     * @category Util\n     * @param {*} value The value to check.\n     * @param {*} defaultValue The default value.\n     * @returns {*} Returns the resolved value.\n     * @example\n     *\n     * _.defaultTo(1, 10);\n     * // => 1\n     *\n     * _.defaultTo(undefined, 10);\n     * // => 10\n     */\n\n\n    function defaultTo(value, defaultValue) {\n      return value == null || value !== value ? defaultValue : value;\n    }\n    /**\n     * Creates a function that returns the result of invoking the given functions\n     * with the `this` binding of the created function, where each successive\n     * invocation is supplied the return value of the previous.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Util\n     * @param {...(Function|Function[])} [funcs] The functions to invoke.\n     * @returns {Function} Returns the new composite function.\n     * @see _.flowRight\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var addSquare = _.flow([_.add, square]);\n     * addSquare(1, 2);\n     * // => 9\n     */\n\n\n    var flow = createFlow();\n    /**\n     * This method is like `_.flow` except that it creates a function that\n     * invokes the given functions from right to left.\n     *\n     * @static\n     * @since 3.0.0\n     * @memberOf _\n     * @category Util\n     * @param {...(Function|Function[])} [funcs] The functions to invoke.\n     * @returns {Function} Returns the new composite function.\n     * @see _.flow\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var addSquare = _.flowRight([square, _.add]);\n     * addSquare(1, 2);\n     * // => 9\n     */\n\n    var flowRight = createFlow(true);\n    /**\n     * This method returns the first argument it receives.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {*} value Any value.\n     * @returns {*} Returns `value`.\n     * @example\n     *\n     * var object = { 'a': 1 };\n     *\n     * console.log(_.identity(object) === object);\n     * // => true\n     */\n\n    function identity(value) {\n      return value;\n    }\n    /**\n     * Creates a function that invokes `func` with the arguments of the created\n     * function. If `func` is a property name, the created function returns the\n     * property value for a given element. If `func` is an array or object, the\n     * created function returns `true` for elements that contain the equivalent\n     * source properties, otherwise it returns `false`.\n     *\n     * @static\n     * @since 4.0.0\n     * @memberOf _\n     * @category Util\n     * @param {*} [func=_.identity] The value to convert to a callback.\n     * @returns {Function} Returns the callback.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36, 'active': true },\n     *   { 'user': 'fred',   'age': 40, 'active': false }\n     * ];\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));\n     * // => [{ 'user': 'barney', 'age': 36, 'active': true }]\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.filter(users, _.iteratee(['user', 'fred']));\n     * // => [{ 'user': 'fred', 'age': 40 }]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.map(users, _.iteratee('user'));\n     * // => ['barney', 'fred']\n     *\n     * // Create custom iteratee shorthands.\n     * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {\n     *   return !_.isRegExp(func) ? iteratee(func) : function(string) {\n     *     return func.test(string);\n     *   };\n     * });\n     *\n     * _.filter(['abc', 'def'], /ef/);\n     * // => ['def']\n     */\n\n\n    function iteratee(func) {\n      return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG));\n    }\n    /**\n     * Creates a function that performs a partial deep comparison between a given\n     * object and `source`, returning `true` if the given object has equivalent\n     * property values, else `false`.\n     *\n     * **Note:** The created function is equivalent to `_.isMatch` with `source`\n     * partially applied.\n     *\n     * Partial comparisons will match empty array and empty object `source`\n     * values against any array or object value, respectively. See `_.isEqual`\n     * for a list of supported value comparisons.\n     *\n     * **Note:** Multiple values can be checked by combining several matchers\n     * using `_.overSome`\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Util\n     * @param {Object} source The object of property values to match.\n     * @returns {Function} Returns the new spec function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': 1, 'b': 2, 'c': 3 },\n     *   { 'a': 4, 'b': 5, 'c': 6 }\n     * ];\n     *\n     * _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));\n     * // => [{ 'a': 4, 'b': 5, 'c': 6 }]\n     *\n     * // Checking for several possible values\n     * _.filter(objects, _.overSome([_.matches({ 'a': 1 }), _.matches({ 'a': 4 })]));\n     * // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]\n     */\n\n\n    function matches(source) {\n      return baseMatches(baseClone(source, CLONE_DEEP_FLAG));\n    }\n    /**\n     * Creates a function that performs a partial deep comparison between the\n     * value at `path` of a given object to `srcValue`, returning `true` if the\n     * object value is equivalent, else `false`.\n     *\n     * **Note:** Partial comparisons will match empty array and empty object\n     * `srcValue` values against any array or object value, respectively. See\n     * `_.isEqual` for a list of supported value comparisons.\n     *\n     * **Note:** Multiple values can be checked by combining several matchers\n     * using `_.overSome`\n     *\n     * @static\n     * @memberOf _\n     * @since 3.2.0\n     * @category Util\n     * @param {Array|string} path The path of the property to get.\n     * @param {*} srcValue The value to match.\n     * @returns {Function} Returns the new spec function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': 1, 'b': 2, 'c': 3 },\n     *   { 'a': 4, 'b': 5, 'c': 6 }\n     * ];\n     *\n     * _.find(objects, _.matchesProperty('a', 4));\n     * // => { 'a': 4, 'b': 5, 'c': 6 }\n     *\n     * // Checking for several possible values\n     * _.filter(objects, _.overSome([_.matchesProperty('a', 1), _.matchesProperty('a', 4)]));\n     * // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]\n     */\n\n\n    function matchesProperty(path, srcValue) {\n      return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG));\n    }\n    /**\n     * Creates a function that invokes the method at `path` of a given object.\n     * Any additional arguments are provided to the invoked method.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.7.0\n     * @category Util\n     * @param {Array|string} path The path of the method to invoke.\n     * @param {...*} [args] The arguments to invoke the method with.\n     * @returns {Function} Returns the new invoker function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': { 'b': _.constant(2) } },\n     *   { 'a': { 'b': _.constant(1) } }\n     * ];\n     *\n     * _.map(objects, _.method('a.b'));\n     * // => [2, 1]\n     *\n     * _.map(objects, _.method(['a', 'b']));\n     * // => [2, 1]\n     */\n\n\n    var method = baseRest(function (path, args) {\n      return function (object) {\n        return baseInvoke(object, path, args);\n      };\n    });\n    /**\n     * The opposite of `_.method`; this method creates a function that invokes\n     * the method at a given path of `object`. Any additional arguments are\n     * provided to the invoked method.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.7.0\n     * @category Util\n     * @param {Object} object The object to query.\n     * @param {...*} [args] The arguments to invoke the method with.\n     * @returns {Function} Returns the new invoker function.\n     * @example\n     *\n     * var array = _.times(3, _.constant),\n     *     object = { 'a': array, 'b': array, 'c': array };\n     *\n     * _.map(['a[2]', 'c[0]'], _.methodOf(object));\n     * // => [2, 0]\n     *\n     * _.map([['a', '2'], ['c', '0']], _.methodOf(object));\n     * // => [2, 0]\n     */\n\n    var methodOf = baseRest(function (object, args) {\n      return function (path) {\n        return baseInvoke(object, path, args);\n      };\n    });\n    /**\n     * Adds all own enumerable string keyed function properties of a source\n     * object to the destination object. If `object` is a function, then methods\n     * are added to its prototype as well.\n     *\n     * **Note:** Use `_.runInContext` to create a pristine `lodash` function to\n     * avoid conflicts caused by modifying the original.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {Function|Object} [object=lodash] The destination object.\n     * @param {Object} source The object of functions to add.\n     * @param {Object} [options={}] The options object.\n     * @param {boolean} [options.chain=true] Specify whether mixins are chainable.\n     * @returns {Function|Object} Returns `object`.\n     * @example\n     *\n     * function vowels(string) {\n     *   return _.filter(string, function(v) {\n     *     return /[aeiou]/i.test(v);\n     *   });\n     * }\n     *\n     * _.mixin({ 'vowels': vowels });\n     * _.vowels('fred');\n     * // => ['e']\n     *\n     * _('fred').vowels().value();\n     * // => ['e']\n     *\n     * _.mixin({ 'vowels': vowels }, { 'chain': false });\n     * _('fred').vowels();\n     * // => ['e']\n     */\n\n    function mixin(object, source, options) {\n      var props = keys(source),\n          methodNames = baseFunctions(source, props);\n\n      if (options == null && !(isObject(source) && (methodNames.length || !props.length))) {\n        options = source;\n        source = object;\n        object = this;\n        methodNames = baseFunctions(source, keys(source));\n      }\n\n      var chain = !(isObject(options) && 'chain' in options) || !!options.chain,\n          isFunc = isFunction(object);\n      arrayEach(methodNames, function (methodName) {\n        var func = source[methodName];\n        object[methodName] = func;\n\n        if (isFunc) {\n          object.prototype[methodName] = function () {\n            var chainAll = this.__chain__;\n\n            if (chain || chainAll) {\n              var result = object(this.__wrapped__),\n                  actions = result.__actions__ = copyArray(this.__actions__);\n              actions.push({\n                'func': func,\n                'args': arguments,\n                'thisArg': object\n              });\n              result.__chain__ = chainAll;\n              return result;\n            }\n\n            return func.apply(object, arrayPush([this.value()], arguments));\n          };\n        }\n      });\n      return object;\n    }\n    /**\n     * Reverts the `_` variable to its previous value and returns a reference to\n     * the `lodash` function.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @returns {Function} Returns the `lodash` function.\n     * @example\n     *\n     * var lodash = _.noConflict();\n     */\n\n\n    function noConflict() {\n      if (root._ === this) {\n        root._ = oldDash;\n      }\n\n      return this;\n    }\n    /**\n     * This method returns `undefined`.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.3.0\n     * @category Util\n     * @example\n     *\n     * _.times(2, _.noop);\n     * // => [undefined, undefined]\n     */\n\n\n    function noop() {// No operation performed.\n    }\n    /**\n     * Creates a function that gets the argument at index `n`. If `n` is negative,\n     * the nth argument from the end is returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {number} [n=0] The index of the argument to return.\n     * @returns {Function} Returns the new pass-thru function.\n     * @example\n     *\n     * var func = _.nthArg(1);\n     * func('a', 'b', 'c', 'd');\n     * // => 'b'\n     *\n     * var func = _.nthArg(-2);\n     * func('a', 'b', 'c', 'd');\n     * // => 'c'\n     */\n\n\n    function nthArg(n) {\n      n = toInteger(n);\n      return baseRest(function (args) {\n        return baseNth(args, n);\n      });\n    }\n    /**\n     * Creates a function that invokes `iteratees` with the arguments it receives\n     * and returns their results.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {...(Function|Function[])} [iteratees=[_.identity]]\n     *  The iteratees to invoke.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var func = _.over([Math.max, Math.min]);\n     *\n     * func(1, 2, 3, 4);\n     * // => [4, 1]\n     */\n\n\n    var over = createOver(arrayMap);\n    /**\n     * Creates a function that checks if **all** of the `predicates` return\n     * truthy when invoked with the arguments it receives.\n     *\n     * Following shorthands are possible for providing predicates.\n     * Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.\n     * Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {...(Function|Function[])} [predicates=[_.identity]]\n     *  The predicates to check.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var func = _.overEvery([Boolean, isFinite]);\n     *\n     * func('1');\n     * // => true\n     *\n     * func(null);\n     * // => false\n     *\n     * func(NaN);\n     * // => false\n     */\n\n    var overEvery = createOver(arrayEvery);\n    /**\n     * Creates a function that checks if **any** of the `predicates` return\n     * truthy when invoked with the arguments it receives.\n     *\n     * Following shorthands are possible for providing predicates.\n     * Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.\n     * Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {...(Function|Function[])} [predicates=[_.identity]]\n     *  The predicates to check.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var func = _.overSome([Boolean, isFinite]);\n     *\n     * func('1');\n     * // => true\n     *\n     * func(null);\n     * // => true\n     *\n     * func(NaN);\n     * // => false\n     *\n     * var matchesFunc = _.overSome([{ 'a': 1 }, { 'a': 2 }])\n     * var matchesPropertyFunc = _.overSome([['a', 1], ['a', 2]])\n     */\n\n    var overSome = createOver(arraySome);\n    /**\n     * Creates a function that returns the value at `path` of a given object.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Util\n     * @param {Array|string} path The path of the property to get.\n     * @returns {Function} Returns the new accessor function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': { 'b': 2 } },\n     *   { 'a': { 'b': 1 } }\n     * ];\n     *\n     * _.map(objects, _.property('a.b'));\n     * // => [2, 1]\n     *\n     * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');\n     * // => [1, 2]\n     */\n\n    function property(path) {\n      return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);\n    }\n    /**\n     * The opposite of `_.property`; this method creates a function that returns\n     * the value at a given path of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Util\n     * @param {Object} object The object to query.\n     * @returns {Function} Returns the new accessor function.\n     * @example\n     *\n     * var array = [0, 1, 2],\n     *     object = { 'a': array, 'b': array, 'c': array };\n     *\n     * _.map(['a[2]', 'c[0]'], _.propertyOf(object));\n     * // => [2, 0]\n     *\n     * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));\n     * // => [2, 0]\n     */\n\n\n    function propertyOf(object) {\n      return function (path) {\n        return object == null ? undefined : baseGet(object, path);\n      };\n    }\n    /**\n     * Creates an array of numbers (positive and/or negative) progressing from\n     * `start` up to, but not including, `end`. A step of `-1` is used if a negative\n     * `start` is specified without an `end` or `step`. If `end` is not specified,\n     * it's set to `start` with `start` then set to `0`.\n     *\n     * **Note:** JavaScript follows the IEEE-754 standard for resolving\n     * floating-point values which can produce unexpected results.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {number} [start=0] The start of the range.\n     * @param {number} end The end of the range.\n     * @param {number} [step=1] The value to increment or decrement by.\n     * @returns {Array} Returns the range of numbers.\n     * @see _.inRange, _.rangeRight\n     * @example\n     *\n     * _.range(4);\n     * // => [0, 1, 2, 3]\n     *\n     * _.range(-4);\n     * // => [0, -1, -2, -3]\n     *\n     * _.range(1, 5);\n     * // => [1, 2, 3, 4]\n     *\n     * _.range(0, 20, 5);\n     * // => [0, 5, 10, 15]\n     *\n     * _.range(0, -4, -1);\n     * // => [0, -1, -2, -3]\n     *\n     * _.range(1, 4, 0);\n     * // => [1, 1, 1]\n     *\n     * _.range(0);\n     * // => []\n     */\n\n\n    var range = createRange();\n    /**\n     * This method is like `_.range` except that it populates values in\n     * descending order.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {number} [start=0] The start of the range.\n     * @param {number} end The end of the range.\n     * @param {number} [step=1] The value to increment or decrement by.\n     * @returns {Array} Returns the range of numbers.\n     * @see _.inRange, _.range\n     * @example\n     *\n     * _.rangeRight(4);\n     * // => [3, 2, 1, 0]\n     *\n     * _.rangeRight(-4);\n     * // => [-3, -2, -1, 0]\n     *\n     * _.rangeRight(1, 5);\n     * // => [4, 3, 2, 1]\n     *\n     * _.rangeRight(0, 20, 5);\n     * // => [15, 10, 5, 0]\n     *\n     * _.rangeRight(0, -4, -1);\n     * // => [-3, -2, -1, 0]\n     *\n     * _.rangeRight(1, 4, 0);\n     * // => [1, 1, 1]\n     *\n     * _.rangeRight(0);\n     * // => []\n     */\n\n    var rangeRight = createRange(true);\n    /**\n     * This method returns a new empty array.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {Array} Returns the new empty array.\n     * @example\n     *\n     * var arrays = _.times(2, _.stubArray);\n     *\n     * console.log(arrays);\n     * // => [[], []]\n     *\n     * console.log(arrays[0] === arrays[1]);\n     * // => false\n     */\n\n    function stubArray() {\n      return [];\n    }\n    /**\n     * This method returns `false`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {boolean} Returns `false`.\n     * @example\n     *\n     * _.times(2, _.stubFalse);\n     * // => [false, false]\n     */\n\n\n    function stubFalse() {\n      return false;\n    }\n    /**\n     * This method returns a new empty object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {Object} Returns the new empty object.\n     * @example\n     *\n     * var objects = _.times(2, _.stubObject);\n     *\n     * console.log(objects);\n     * // => [{}, {}]\n     *\n     * console.log(objects[0] === objects[1]);\n     * // => false\n     */\n\n\n    function stubObject() {\n      return {};\n    }\n    /**\n     * This method returns an empty string.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {string} Returns the empty string.\n     * @example\n     *\n     * _.times(2, _.stubString);\n     * // => ['', '']\n     */\n\n\n    function stubString() {\n      return '';\n    }\n    /**\n     * This method returns `true`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {boolean} Returns `true`.\n     * @example\n     *\n     * _.times(2, _.stubTrue);\n     * // => [true, true]\n     */\n\n\n    function stubTrue() {\n      return true;\n    }\n    /**\n     * Invokes the iteratee `n` times, returning an array of the results of\n     * each invocation. The iteratee is invoked with one argument; (index).\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {number} n The number of times to invoke `iteratee`.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the array of results.\n     * @example\n     *\n     * _.times(3, String);\n     * // => ['0', '1', '2']\n     *\n     *  _.times(4, _.constant(0));\n     * // => [0, 0, 0, 0]\n     */\n\n\n    function times(n, iteratee) {\n      n = toInteger(n);\n\n      if (n < 1 || n > MAX_SAFE_INTEGER) {\n        return [];\n      }\n\n      var index = MAX_ARRAY_LENGTH,\n          length = nativeMin(n, MAX_ARRAY_LENGTH);\n      iteratee = getIteratee(iteratee);\n      n -= MAX_ARRAY_LENGTH;\n      var result = baseTimes(length, iteratee);\n\n      while (++index < n) {\n        iteratee(index);\n      }\n\n      return result;\n    }\n    /**\n     * Converts `value` to a property path array.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {*} value The value to convert.\n     * @returns {Array} Returns the new property path array.\n     * @example\n     *\n     * _.toPath('a.b.c');\n     * // => ['a', 'b', 'c']\n     *\n     * _.toPath('a[0].b.c');\n     * // => ['a', '0', 'b', 'c']\n     */\n\n\n    function toPath(value) {\n      if (isArray(value)) {\n        return arrayMap(value, toKey);\n      }\n\n      return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));\n    }\n    /**\n     * Generates a unique ID. If `prefix` is given, the ID is appended to it.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {string} [prefix=''] The value to prefix the ID with.\n     * @returns {string} Returns the unique ID.\n     * @example\n     *\n     * _.uniqueId('contact_');\n     * // => 'contact_104'\n     *\n     * _.uniqueId();\n     * // => '105'\n     */\n\n\n    function uniqueId(prefix) {\n      var id = ++idCounter;\n      return toString(prefix) + id;\n    }\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Adds two numbers.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.4.0\n     * @category Math\n     * @param {number} augend The first number in an addition.\n     * @param {number} addend The second number in an addition.\n     * @returns {number} Returns the total.\n     * @example\n     *\n     * _.add(6, 4);\n     * // => 10\n     */\n\n\n    var add = createMathOperation(function (augend, addend) {\n      return augend + addend;\n    }, 0);\n    /**\n     * Computes `number` rounded up to `precision`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.10.0\n     * @category Math\n     * @param {number} number The number to round up.\n     * @param {number} [precision=0] The precision to round up to.\n     * @returns {number} Returns the rounded up number.\n     * @example\n     *\n     * _.ceil(4.006);\n     * // => 5\n     *\n     * _.ceil(6.004, 2);\n     * // => 6.01\n     *\n     * _.ceil(6040, -2);\n     * // => 6100\n     */\n\n    var ceil = createRound('ceil');\n    /**\n     * Divide two numbers.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Math\n     * @param {number} dividend The first number in a division.\n     * @param {number} divisor The second number in a division.\n     * @returns {number} Returns the quotient.\n     * @example\n     *\n     * _.divide(6, 4);\n     * // => 1.5\n     */\n\n    var divide = createMathOperation(function (dividend, divisor) {\n      return dividend / divisor;\n    }, 1);\n    /**\n     * Computes `number` rounded down to `precision`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.10.0\n     * @category Math\n     * @param {number} number The number to round down.\n     * @param {number} [precision=0] The precision to round down to.\n     * @returns {number} Returns the rounded down number.\n     * @example\n     *\n     * _.floor(4.006);\n     * // => 4\n     *\n     * _.floor(0.046, 2);\n     * // => 0.04\n     *\n     * _.floor(4060, -2);\n     * // => 4000\n     */\n\n    var floor = createRound('floor');\n    /**\n     * Computes the maximum value of `array`. If `array` is empty or falsey,\n     * `undefined` is returned.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @returns {*} Returns the maximum value.\n     * @example\n     *\n     * _.max([4, 2, 8, 6]);\n     * // => 8\n     *\n     * _.max([]);\n     * // => undefined\n     */\n\n    function max(array) {\n      return array && array.length ? baseExtremum(array, identity, baseGt) : undefined;\n    }\n    /**\n     * This method is like `_.max` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the criterion by which\n     * the value is ranked. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {*} Returns the maximum value.\n     * @example\n     *\n     * var objects = [{ 'n': 1 }, { 'n': 2 }];\n     *\n     * _.maxBy(objects, function(o) { return o.n; });\n     * // => { 'n': 2 }\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.maxBy(objects, 'n');\n     * // => { 'n': 2 }\n     */\n\n\n    function maxBy(array, iteratee) {\n      return array && array.length ? baseExtremum(array, getIteratee(iteratee, 2), baseGt) : undefined;\n    }\n    /**\n     * Computes the mean of the values in `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @returns {number} Returns the mean.\n     * @example\n     *\n     * _.mean([4, 2, 8, 6]);\n     * // => 5\n     */\n\n\n    function mean(array) {\n      return baseMean(array, identity);\n    }\n    /**\n     * This method is like `_.mean` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the value to be averaged.\n     * The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {number} Returns the mean.\n     * @example\n     *\n     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];\n     *\n     * _.meanBy(objects, function(o) { return o.n; });\n     * // => 5\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.meanBy(objects, 'n');\n     * // => 5\n     */\n\n\n    function meanBy(array, iteratee) {\n      return baseMean(array, getIteratee(iteratee, 2));\n    }\n    /**\n     * Computes the minimum value of `array`. If `array` is empty or falsey,\n     * `undefined` is returned.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @returns {*} Returns the minimum value.\n     * @example\n     *\n     * _.min([4, 2, 8, 6]);\n     * // => 2\n     *\n     * _.min([]);\n     * // => undefined\n     */\n\n\n    function min(array) {\n      return array && array.length ? baseExtremum(array, identity, baseLt) : undefined;\n    }\n    /**\n     * This method is like `_.min` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the criterion by which\n     * the value is ranked. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {*} Returns the minimum value.\n     * @example\n     *\n     * var objects = [{ 'n': 1 }, { 'n': 2 }];\n     *\n     * _.minBy(objects, function(o) { return o.n; });\n     * // => { 'n': 1 }\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.minBy(objects, 'n');\n     * // => { 'n': 1 }\n     */\n\n\n    function minBy(array, iteratee) {\n      return array && array.length ? baseExtremum(array, getIteratee(iteratee, 2), baseLt) : undefined;\n    }\n    /**\n     * Multiply two numbers.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Math\n     * @param {number} multiplier The first number in a multiplication.\n     * @param {number} multiplicand The second number in a multiplication.\n     * @returns {number} Returns the product.\n     * @example\n     *\n     * _.multiply(6, 4);\n     * // => 24\n     */\n\n\n    var multiply = createMathOperation(function (multiplier, multiplicand) {\n      return multiplier * multiplicand;\n    }, 1);\n    /**\n     * Computes `number` rounded to `precision`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.10.0\n     * @category Math\n     * @param {number} number The number to round.\n     * @param {number} [precision=0] The precision to round to.\n     * @returns {number} Returns the rounded number.\n     * @example\n     *\n     * _.round(4.006);\n     * // => 4\n     *\n     * _.round(4.006, 2);\n     * // => 4.01\n     *\n     * _.round(4060, -2);\n     * // => 4100\n     */\n\n    var round = createRound('round');\n    /**\n     * Subtract two numbers.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {number} minuend The first number in a subtraction.\n     * @param {number} subtrahend The second number in a subtraction.\n     * @returns {number} Returns the difference.\n     * @example\n     *\n     * _.subtract(6, 4);\n     * // => 2\n     */\n\n    var subtract = createMathOperation(function (minuend, subtrahend) {\n      return minuend - subtrahend;\n    }, 0);\n    /**\n     * Computes the sum of the values in `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.4.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @returns {number} Returns the sum.\n     * @example\n     *\n     * _.sum([4, 2, 8, 6]);\n     * // => 20\n     */\n\n    function sum(array) {\n      return array && array.length ? baseSum(array, identity) : 0;\n    }\n    /**\n     * This method is like `_.sum` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the value to be summed.\n     * The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {number} Returns the sum.\n     * @example\n     *\n     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];\n     *\n     * _.sumBy(objects, function(o) { return o.n; });\n     * // => 20\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.sumBy(objects, 'n');\n     * // => 20\n     */\n\n\n    function sumBy(array, iteratee) {\n      return array && array.length ? baseSum(array, getIteratee(iteratee, 2)) : 0;\n    }\n    /*------------------------------------------------------------------------*/\n    // Add methods that return wrapped values in chain sequences.\n\n\n    lodash.after = after;\n    lodash.ary = ary;\n    lodash.assign = assign;\n    lodash.assignIn = assignIn;\n    lodash.assignInWith = assignInWith;\n    lodash.assignWith = assignWith;\n    lodash.at = at;\n    lodash.before = before;\n    lodash.bind = bind;\n    lodash.bindAll = bindAll;\n    lodash.bindKey = bindKey;\n    lodash.castArray = castArray;\n    lodash.chain = chain;\n    lodash.chunk = chunk;\n    lodash.compact = compact;\n    lodash.concat = concat;\n    lodash.cond = cond;\n    lodash.conforms = conforms;\n    lodash.constant = constant;\n    lodash.countBy = countBy;\n    lodash.create = create;\n    lodash.curry = curry;\n    lodash.curryRight = curryRight;\n    lodash.debounce = debounce;\n    lodash.defaults = defaults;\n    lodash.defaultsDeep = defaultsDeep;\n    lodash.defer = defer;\n    lodash.delay = delay;\n    lodash.difference = difference;\n    lodash.differenceBy = differenceBy;\n    lodash.differenceWith = differenceWith;\n    lodash.drop = drop;\n    lodash.dropRight = dropRight;\n    lodash.dropRightWhile = dropRightWhile;\n    lodash.dropWhile = dropWhile;\n  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lodash.matchesProperty = matchesProperty;\n    lodash.memoize = memoize;\n    lodash.merge = merge;\n    lodash.mergeWith = mergeWith;\n    lodash.method = method;\n    lodash.methodOf = methodOf;\n    lodash.mixin = mixin;\n    lodash.negate = negate;\n    lodash.nthArg = nthArg;\n    lodash.omit = omit;\n    lodash.omitBy = omitBy;\n    lodash.once = once;\n    lodash.orderBy = orderBy;\n    lodash.over = over;\n    lodash.overArgs = overArgs;\n    lodash.overEvery = overEvery;\n    lodash.overSome = overSome;\n    lodash.partial = partial;\n    lodash.partialRight = partialRight;\n    lodash.partition = partition;\n    lodash.pick = pick;\n    lodash.pickBy = pickBy;\n    lodash.property = property;\n    lodash.propertyOf = propertyOf;\n    lodash.pull = pull;\n    lodash.pullAll = pullAll;\n    lodash.pullAllBy = pullAllBy;\n    lodash.pullAllWith = pullAllWith;\n    lodash.pullAt = pullAt;\n    lodash.range = range;\n    lodash.rangeRight = rangeRight;\n    lodash.rearg = rearg;\n    lodash.reject = reject;\n    lodash.remove = remove;\n    lodash.rest = rest;\n    lodash.reverse = reverse;\n    lodash.sampleSize = sampleSize;\n    lodash.set = set;\n    lodash.setWith = setWith;\n    lodash.shuffle = shuffle;\n    lodash.slice = slice;\n    lodash.sortBy = sortBy;\n    lodash.sortedUniq = sortedUniq;\n    lodash.sortedUniqBy = sortedUniqBy;\n    lodash.split = split;\n    lodash.spread = spread;\n    lodash.tail = tail;\n    lodash.take = take;\n    lodash.takeRight = takeRight;\n    lodash.takeRightWhile = takeRightWhile;\n    lodash.takeWhile = takeWhile;\n    lodash.tap = tap;\n    lodash.throttle = throttle;\n    lodash.thru = thru;\n    lodash.toArray = toArray;\n    lodash.toPairs = toPairs;\n    lodash.toPairsIn = toPairsIn;\n    lodash.toPath = toPath;\n    lodash.toPlainObject = toPlainObject;\n    lodash.transform = transform;\n    lodash.unary = unary;\n    lodash.union = union;\n    lodash.unionBy = unionBy;\n    lodash.unionWith = unionWith;\n    lodash.uniq = uniq;\n    lodash.uniqBy = uniqBy;\n    lodash.uniqWith = uniqWith;\n    lodash.unset = unset;\n    lodash.unzip = unzip;\n    lodash.unzipWith = unzipWith;\n    lodash.update = update;\n    lodash.updateWith = updateWith;\n    lodash.values = values;\n    lodash.valuesIn = valuesIn;\n    lodash.without = without;\n    lodash.words = words;\n    lodash.wrap = wrap;\n    lodash.xor = xor;\n    lodash.xorBy = xorBy;\n    lodash.xorWith = xorWith;\n    lodash.zip = zip;\n    lodash.zipObject = zipObject;\n    lodash.zipObjectDeep = zipObjectDeep;\n    lodash.zipWith = zipWith; // Add aliases.\n\n    lodash.entries = toPairs;\n    lodash.entriesIn = toPairsIn;\n    lodash.extend = assignIn;\n    lodash.extendWith = assignInWith; // Add methods to `lodash.prototype`.\n\n    mixin(lodash, lodash);\n    /*------------------------------------------------------------------------*/\n    // Add methods that return unwrapped values in chain sequences.\n\n    lodash.add = add;\n    lodash.attempt = attempt;\n    lodash.camelCase = camelCase;\n    lodash.capitalize = capitalize;\n    lodash.ceil = ceil;\n    lodash.clamp = clamp;\n    lodash.clone = clone;\n    lodash.cloneDeep = cloneDeep;\n    lodash.cloneDeepWith = cloneDeepWith;\n    lodash.cloneWith = cloneWith;\n    lodash.conformsTo = conformsTo;\n    lodash.deburr = deburr;\n    lodash.defaultTo = defaultTo;\n    lodash.divide = divide;\n    lodash.endsWith = endsWith;\n    lodash.eq = eq;\n    lodash.escape = escape;\n    lodash.escapeRegExp = escapeRegExp;\n    lodash.every = every;\n    lodash.find = find;\n    lodash.findIndex = findIndex;\n    lodash.findKey = findKey;\n    lodash.findLast = findLast;\n    lodash.findLastIndex = findLastIndex;\n    lodash.findLastKey = findLastKey;\n    lodash.floor = floor;\n    lodash.forEach = forEach;\n    lodash.forEachRight = forEachRight;\n    lodash.forIn = forIn;\n    lodash.forInRight = forInRight;\n    lodash.forOwn = forOwn;\n    lodash.forOwnRight = forOwnRight;\n    lodash.get = get;\n    lodash.gt = gt;\n    lodash.gte = gte;\n    lodash.has = has;\n    lodash.hasIn = hasIn;\n    lodash.head = head;\n    lodash.identity = identity;\n    lodash.includes = includes;\n    lodash.indexOf = indexOf;\n    lodash.inRange = inRange;\n    lodash.invoke = invoke;\n    lodash.isArguments = isArguments;\n    lodash.isArray = isArray;\n    lodash.isArrayBuffer = isArrayBuffer;\n    lodash.isArrayLike = isArrayLike;\n    lodash.isArrayLikeObject = isArrayLikeObject;\n    lodash.isBoolean = isBoolean;\n    lodash.isBuffer = isBuffer;\n    lodash.isDate = isDate;\n    lodash.isElement = isElement;\n    lodash.isEmpty = isEmpty;\n    lodash.isEqual = isEqual;\n    lodash.isEqualWith = isEqualWith;\n    lodash.isError = isError;\n    lodash.isFinite = isFinite;\n    lodash.isFunction = isFunction;\n    lodash.isInteger = isInteger;\n    lodash.isLength = isLength;\n    lodash.isMap = isMap;\n    lodash.isMatch = isMatch;\n    lodash.isMatchWith = isMatchWith;\n    lodash.isNaN = isNaN;\n    lodash.isNative = isNative;\n    lodash.isNil = isNil;\n    lodash.isNull = isNull;\n    lodash.isNumber = isNumber;\n    lodash.isObject = isObject;\n    lodash.isObjectLike = isObjectLike;\n    lodash.isPlainObject = isPlainObject;\n    lodash.isRegExp = isRegExp;\n    lodash.isSafeInteger = isSafeInteger;\n    lodash.isSet = isSet;\n    lodash.isString = isString;\n    lodash.isSymbol = isSymbol;\n    lodash.isTypedArray = isTypedArray;\n    lodash.isUndefined = isUndefined;\n    lodash.isWeakMap = isWeakMap;\n    lodash.isWeakSet = isWeakSet;\n    lodash.join = join;\n    lodash.kebabCase = kebabCase;\n    lodash.last = last;\n    lodash.lastIndexOf = lastIndexOf;\n    lodash.lowerCase = lowerCase;\n    lodash.lowerFirst = lowerFirst;\n    lodash.lt = lt;\n    lodash.lte = lte;\n    lodash.max = max;\n    lodash.maxBy = maxBy;\n    lodash.mean = mean;\n    lodash.meanBy = meanBy;\n    lodash.min = min;\n    lodash.minBy = minBy;\n    lodash.stubArray = stubArray;\n    lodash.stubFalse = stubFalse;\n    lodash.stubObject = stubObject;\n    lodash.stubString = stubString;\n    lodash.stubTrue = stubTrue;\n    lodash.multiply = multiply;\n    lodash.nth = nth;\n    lodash.noConflict = noConflict;\n    lodash.noop = noop;\n    lodash.now = now;\n    lodash.pad = pad;\n    lodash.padEnd = padEnd;\n    lodash.padStart = padStart;\n    lodash.parseInt = parseInt;\n    lodash.random = random;\n    lodash.reduce = reduce;\n    lodash.reduceRight = reduceRight;\n    lodash.repeat = repeat;\n    lodash.replace = replace;\n    lodash.result = result;\n    lodash.round = round;\n    lodash.runInContext = runInContext;\n    lodash.sample = sample;\n    lodash.size = size;\n    lodash.snakeCase = snakeCase;\n    lodash.some = some;\n    lodash.sortedIndex = sortedIndex;\n    lodash.sortedIndexBy = sortedIndexBy;\n    lodash.sortedIndexOf = sortedIndexOf;\n    lodash.sortedLastIndex = sortedLastIndex;\n    lodash.sortedLastIndexBy = sortedLastIndexBy;\n    lodash.sortedLastIndexOf = sortedLastIndexOf;\n    lodash.startCase = startCase;\n    lodash.startsWith = startsWith;\n    lodash.subtract = subtract;\n    lodash.sum = sum;\n    lodash.sumBy = sumBy;\n    lodash.template = template;\n    lodash.times = times;\n    lodash.toFinite = toFinite;\n    lodash.toInteger = toInteger;\n    lodash.toLength = toLength;\n    lodash.toLower = toLower;\n    lodash.toNumber = toNumber;\n    lodash.toSafeInteger = toSafeInteger;\n    lodash.toString = toString;\n    lodash.toUpper = toUpper;\n    lodash.trim = trim;\n    lodash.trimEnd = trimEnd;\n    lodash.trimStart = trimStart;\n    lodash.truncate = truncate;\n    lodash.unescape = unescape;\n    lodash.uniqueId = uniqueId;\n    lodash.upperCase = upperCase;\n    lodash.upperFirst = upperFirst; // Add aliases.\n\n    lodash.each = forEach;\n    lodash.eachRight = forEachRight;\n    lodash.first = head;\n    mixin(lodash, function () {\n      var source = {};\n      baseForOwn(lodash, function (func, methodName) {\n        if (!hasOwnProperty.call(lodash.prototype, methodName)) {\n          source[methodName] = func;\n        }\n      });\n      return source;\n    }(), {\n      'chain': false\n    });\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * The semantic version number.\n     *\n     * @static\n     * @memberOf _\n     * @type {string}\n     */\n\n    lodash.VERSION = VERSION; // Assign default placeholders.\n\n    arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function (methodName) {\n      lodash[methodName].placeholder = lodash;\n    }); // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.\n\n    arrayEach(['drop', 'take'], function (methodName, index) {\n      LazyWrapper.prototype[methodName] = function (n) {\n        n = n === undefined ? 1 : nativeMax(toInteger(n), 0);\n        var result = this.__filtered__ && !index ? new LazyWrapper(this) : this.clone();\n\n        if (result.__filtered__) {\n          result.__takeCount__ = nativeMin(n, result.__takeCount__);\n        } else {\n          result.__views__.push({\n            'size': nativeMin(n, MAX_ARRAY_LENGTH),\n            'type': methodName + (result.__dir__ < 0 ? 'Right' : '')\n          });\n        }\n\n        return result;\n      };\n\n      LazyWrapper.prototype[methodName + 'Right'] = function (n) {\n        return this.reverse()[methodName](n).reverse();\n      };\n    }); // Add `LazyWrapper` methods that accept an `iteratee` value.\n\n    arrayEach(['filter', 'map', 'takeWhile'], function (methodName, index) {\n      var type = index + 1,\n          isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG;\n\n      LazyWrapper.prototype[methodName] = function (iteratee) {\n        var result = this.clone();\n\n        result.__iteratees__.push({\n          'iteratee': getIteratee(iteratee, 3),\n          'type': type\n        });\n\n        result.__filtered__ = result.__filtered__ || isFilter;\n        return result;\n      };\n    }); // Add `LazyWrapper` methods for `_.head` and `_.last`.\n\n    arrayEach(['head', 'last'], function (methodName, index) {\n      var takeName = 'take' + (index ? 'Right' : '');\n\n      LazyWrapper.prototype[methodName] = function () {\n        return this[takeName](1).value()[0];\n      };\n    }); // Add `LazyWrapper` methods for `_.initial` and `_.tail`.\n\n    arrayEach(['initial', 'tail'], function (methodName, index) {\n      var dropName = 'drop' + (index ? '' : 'Right');\n\n      LazyWrapper.prototype[methodName] = function () {\n        return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);\n      };\n    });\n\n    LazyWrapper.prototype.compact = function () {\n      return this.filter(identity);\n    };\n\n    LazyWrapper.prototype.find = function (predicate) {\n      return this.filter(predicate).head();\n    };\n\n    LazyWrapper.prototype.findLast = function (predicate) {\n      return this.reverse().find(predicate);\n    };\n\n    LazyWrapper.prototype.invokeMap = baseRest(function (path, args) {\n      if (typeof path == 'function') {\n        return new LazyWrapper(this);\n      }\n\n      return this.map(function (value) {\n        return baseInvoke(value, path, args);\n      });\n    });\n\n    LazyWrapper.prototype.reject = function (predicate) {\n      return this.filter(negate(getIteratee(predicate)));\n    };\n\n    LazyWrapper.prototype.slice = function (start, end) {\n      start = toInteger(start);\n      var result = this;\n\n      if (result.__filtered__ && (start > 0 || end < 0)) {\n        return new LazyWrapper(result);\n      }\n\n      if (start < 0) {\n        result = result.takeRight(-start);\n      } else if (start) {\n        result = result.drop(start);\n      }\n\n      if (end !== undefined) {\n        end = toInteger(end);\n        result = end < 0 ? result.dropRight(-end) : result.take(end - start);\n      }\n\n      return result;\n    };\n\n    LazyWrapper.prototype.takeRightWhile = function (predicate) {\n      return this.reverse().takeWhile(predicate).reverse();\n    };\n\n    LazyWrapper.prototype.toArray = function () {\n      return this.take(MAX_ARRAY_LENGTH);\n    }; // Add `LazyWrapper` methods to `lodash.prototype`.\n\n\n    baseForOwn(LazyWrapper.prototype, function (func, methodName) {\n      var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),\n          isTaker = /^(?:head|last)$/.test(methodName),\n          lodashFunc = lodash[isTaker ? 'take' + (methodName == 'last' ? 'Right' : '') : methodName],\n          retUnwrapped = isTaker || /^find/.test(methodName);\n\n      if (!lodashFunc) {\n        return;\n      }\n\n      lodash.prototype[methodName] = function () {\n        var value = this.__wrapped__,\n            args = isTaker ? [1] : arguments,\n            isLazy = value instanceof LazyWrapper,\n            iteratee = args[0],\n            useLazy = isLazy || isArray(value);\n\n        var interceptor = function interceptor(value) {\n          var result = lodashFunc.apply(lodash, arrayPush([value], args));\n          return isTaker && chainAll ? result[0] : result;\n        };\n\n        if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {\n          // Avoid lazy use if the iteratee has a \"length\" value other than `1`.\n          isLazy = useLazy = false;\n        }\n\n        var chainAll = this.__chain__,\n            isHybrid = !!this.__actions__.length,\n            isUnwrapped = retUnwrapped && !chainAll,\n            onlyLazy = isLazy && !isHybrid;\n\n        if (!retUnwrapped && useLazy) {\n          value = onlyLazy ? value : new LazyWrapper(this);\n          var result = func.apply(value, args);\n\n          result.__actions__.push({\n            'func': thru,\n            'args': [interceptor],\n            'thisArg': undefined\n          });\n\n          return new LodashWrapper(result, chainAll);\n        }\n\n        if (isUnwrapped && onlyLazy) {\n          return func.apply(this, args);\n        }\n\n        result = this.thru(interceptor);\n        return isUnwrapped ? isTaker ? result.value()[0] : result.value() : result;\n      };\n    }); // Add `Array` methods to `lodash.prototype`.\n\n    arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function (methodName) {\n      var func = arrayProto[methodName],\n          chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',\n          retUnwrapped = /^(?:pop|shift)$/.test(methodName);\n\n      lodash.prototype[methodName] = function () {\n        var args = arguments;\n\n        if (retUnwrapped && !this.__chain__) {\n          var value = this.value();\n          return func.apply(isArray(value) ? value : [], args);\n        }\n\n        return this[chainName](function (value) {\n          return func.apply(isArray(value) ? value : [], args);\n        });\n      };\n    }); // Map minified method names to their real names.\n\n    baseForOwn(LazyWrapper.prototype, function (func, methodName) {\n      var lodashFunc = lodash[methodName];\n\n      if (lodashFunc) {\n        var key = lodashFunc.name + '';\n\n        if (!hasOwnProperty.call(realNames, key)) {\n          realNames[key] = [];\n        }\n\n        realNames[key].push({\n          'name': methodName,\n          'func': lodashFunc\n        });\n      }\n    });\n    realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{\n      'name': 'wrapper',\n      'func': undefined\n    }]; // Add methods to `LazyWrapper`.\n\n    LazyWrapper.prototype.clone = lazyClone;\n    LazyWrapper.prototype.reverse = lazyReverse;\n    LazyWrapper.prototype.value = lazyValue; // Add chain sequence methods to the `lodash` wrapper.\n\n    lodash.prototype.at = wrapperAt;\n    lodash.prototype.chain = wrapperChain;\n    lodash.prototype.commit = wrapperCommit;\n    lodash.prototype.next = wrapperNext;\n    lodash.prototype.plant = wrapperPlant;\n    lodash.prototype.reverse = wrapperReverse;\n    lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue; // Add lazy aliases.\n\n    lodash.prototype.first = lodash.prototype.head;\n\n    if (symIterator) {\n      lodash.prototype[symIterator] = wrapperToIterator;\n    }\n\n    return lodash;\n  };\n  /*--------------------------------------------------------------------------*/\n  // Export lodash.\n\n\n  var _ = runInContext(); // Some AMD build optimizers, like r.js, check for condition patterns like:\n\n\n  if (typeof define == 'function' && _typeof(define.amd) == 'object' && define.amd) {\n    // Expose Lodash on the global object to prevent errors when Lodash is\n    // loaded by a script tag in the presence of an AMD loader.\n    // See http://requirejs.org/docs/errors.html#mismatch for more details.\n    // Use `_.noConflict` to remove Lodash from the global object.\n    root._ = _; // Define as an anonymous module so, through path mapping, it can be\n    // referenced as the \"underscore\" module.\n\n    define(function () {\n      return _;\n    });\n  } // Check for `exports` after `define` in case a build optimizer adds it.\n  else if (freeModule) {\n      // Export for Node.js.\n      (freeModule.exports = _)._ = _; // Export for CommonJS support.\n\n      freeExports._ = _;\n    } else {\n      // Export to the global object.\n      root._ = _;\n    }\n}).call(this);","module.exports = require('./lib/axios');","/**\n * Copyright (c) 2014-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\nvar runtime = (function (exports) {\n  \"use strict\";\n\n  var Op = Object.prototype;\n  var hasOwn = Op.hasOwnProperty;\n  var undefined; // More compressible than void 0.\n  var $Symbol = typeof Symbol === \"function\" ? Symbol : {};\n  var iteratorSymbol = $Symbol.iterator || \"@@iterator\";\n  var asyncIteratorSymbol = $Symbol.asyncIterator || \"@@asyncIterator\";\n  var toStringTagSymbol = $Symbol.toStringTag || \"@@toStringTag\";\n\n  function define(obj, key, value) {\n    Object.defineProperty(obj, key, {\n      value: value,\n      enumerable: true,\n      configurable: true,\n      writable: true\n    });\n    return obj[key];\n  }\n  try {\n    // IE 8 has a broken Object.defineProperty that only works on DOM objects.\n    define({}, \"\");\n  } catch (err) {\n    define = function(obj, key, value) {\n      return obj[key] = value;\n    };\n  }\n\n  function wrap(innerFn, outerFn, self, tryLocsList) {\n    // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.\n    var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;\n    var generator = Object.create(protoGenerator.prototype);\n    var context = new Context(tryLocsList || []);\n\n    // The ._invoke method unifies the implementations of the .next,\n    // .throw, and .return methods.\n    generator._invoke = makeInvokeMethod(innerFn, self, context);\n\n    return generator;\n  }\n  exports.wrap = wrap;\n\n  // Try/catch helper to minimize deoptimizations. Returns a completion\n  // record like context.tryEntries[i].completion. This interface could\n  // have been (and was previously) designed to take a closure to be\n  // invoked without arguments, but in all the cases we care about we\n  // already have an existing method we want to call, so there's no need\n  // to create a new function object. We can even get away with assuming\n  // the method takes exactly one argument, since that happens to be true\n  // in every case, so we don't have to touch the arguments object. The\n  // only additional allocation required is the completion record, which\n  // has a stable shape and so hopefully should be cheap to allocate.\n  function tryCatch(fn, obj, arg) {\n    try {\n      return { type: \"normal\", arg: fn.call(obj, arg) };\n    } catch (err) {\n      return { type: \"throw\", arg: err };\n    }\n  }\n\n  var GenStateSuspendedStart = \"suspendedStart\";\n  var GenStateSuspendedYield = \"suspendedYield\";\n  var GenStateExecuting = \"executing\";\n  var GenStateCompleted = \"completed\";\n\n  // Returning this object from the innerFn has the same effect as\n  // breaking out of the dispatch switch statement.\n  var ContinueSentinel = {};\n\n  // Dummy constructor functions that we use as the .constructor and\n  // .constructor.prototype properties for functions that return Generator\n  // objects. For full spec compliance, you may wish to configure your\n  // minifier not to mangle the names of these two functions.\n  function Generator() {}\n  function GeneratorFunction() {}\n  function GeneratorFunctionPrototype() {}\n\n  // This is a polyfill for %IteratorPrototype% for environments that\n  // don't natively support it.\n  var IteratorPrototype = {};\n  IteratorPrototype[iteratorSymbol] = function () {\n    return this;\n  };\n\n  var getProto = Object.getPrototypeOf;\n  var NativeIteratorPrototype = getProto && getProto(getProto(values([])));\n  if (NativeIteratorPrototype &&\n      NativeIteratorPrototype !== Op &&\n      hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {\n    // This environment has a native %IteratorPrototype%; use it instead\n    // of the polyfill.\n    IteratorPrototype = NativeIteratorPrototype;\n  }\n\n  var Gp = GeneratorFunctionPrototype.prototype =\n    Generator.prototype = Object.create(IteratorPrototype);\n  GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;\n  GeneratorFunctionPrototype.constructor = GeneratorFunction;\n  GeneratorFunction.displayName = define(\n    GeneratorFunctionPrototype,\n    toStringTagSymbol,\n    \"GeneratorFunction\"\n  );\n\n  // Helper for defining the .next, .throw, and .return methods of the\n  // Iterator interface in terms of a single ._invoke method.\n  function defineIteratorMethods(prototype) {\n    [\"next\", \"throw\", \"return\"].forEach(function(method) {\n      define(prototype, method, function(arg) {\n        return this._invoke(method, arg);\n      });\n    });\n  }\n\n  exports.isGeneratorFunction = function(genFun) {\n    var ctor = typeof genFun === \"function\" && genFun.constructor;\n    return ctor\n      ? ctor === GeneratorFunction ||\n        // For the native GeneratorFunction constructor, the best we can\n        // do is to check its .name property.\n        (ctor.displayName || ctor.name) === \"GeneratorFunction\"\n      : false;\n  };\n\n  exports.mark = function(genFun) {\n    if (Object.setPrototypeOf) {\n      Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);\n    } else {\n      genFun.__proto__ = GeneratorFunctionPrototype;\n      define(genFun, toStringTagSymbol, \"GeneratorFunction\");\n    }\n    genFun.prototype = Object.create(Gp);\n    return genFun;\n  };\n\n  // Within the body of any async function, `await x` is transformed to\n  // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test\n  // `hasOwn.call(value, \"__await\")` to determine if the yielded value is\n  // meant to be awaited.\n  exports.awrap = function(arg) {\n    return { __await: arg };\n  };\n\n  function AsyncIterator(generator, PromiseImpl) {\n    function invoke(method, arg, resolve, reject) {\n      var record = tryCatch(generator[method], generator, arg);\n      if (record.type === \"throw\") {\n        reject(record.arg);\n      } else {\n        var result = record.arg;\n        var value = result.value;\n        if (value &&\n            typeof value === \"object\" &&\n            hasOwn.call(value, \"__await\")) {\n          return PromiseImpl.resolve(value.__await).then(function(value) {\n            invoke(\"next\", value, resolve, reject);\n          }, function(err) {\n            invoke(\"throw\", err, resolve, reject);\n          });\n        }\n\n        return PromiseImpl.resolve(value).then(function(unwrapped) {\n          // When a yielded Promise is resolved, its final value becomes\n          // the .value of the Promise<{value,done}> result for the\n          // current iteration.\n          result.value = unwrapped;\n          resolve(result);\n        }, function(error) {\n          // If a rejected Promise was yielded, throw the rejection back\n          // into the async generator function so it can be handled there.\n          return invoke(\"throw\", error, resolve, reject);\n        });\n      }\n    }\n\n    var previousPromise;\n\n    function enqueue(method, arg) {\n      function callInvokeWithMethodAndArg() {\n        return new PromiseImpl(function(resolve, reject) {\n          invoke(method, arg, resolve, reject);\n        });\n      }\n\n      return previousPromise =\n        // If enqueue has been called before, then we want to wait until\n        // all previous Promises have been resolved before calling invoke,\n        // so that results are always delivered in the correct order. If\n        // enqueue has not been called before, then it is important to\n        // call invoke immediately, without waiting on a callback to fire,\n        // so that the async generator function has the opportunity to do\n        // any necessary setup in a predictable way. This predictability\n        // is why the Promise constructor synchronously invokes its\n        // executor callback, and why async functions synchronously\n        // execute code before the first await. Since we implement simple\n        // async functions in terms of async generators, it is especially\n        // important to get this right, even though it requires care.\n        previousPromise ? previousPromise.then(\n          callInvokeWithMethodAndArg,\n          // Avoid propagating failures to Promises returned by later\n          // invocations of the iterator.\n          callInvokeWithMethodAndArg\n        ) : callInvokeWithMethodAndArg();\n    }\n\n    // Define the unified helper method that is used to implement .next,\n    // .throw, and .return (see defineIteratorMethods).\n    this._invoke = enqueue;\n  }\n\n  defineIteratorMethods(AsyncIterator.prototype);\n  AsyncIterator.prototype[asyncIteratorSymbol] = function () {\n    return this;\n  };\n  exports.AsyncIterator = AsyncIterator;\n\n  // Note that simple async functions are implemented on top of\n  // AsyncIterator objects; they just return a Promise for the value of\n  // the final result produced by the iterator.\n  exports.async = function(innerFn, outerFn, self, tryLocsList, PromiseImpl) {\n    if (PromiseImpl === void 0) PromiseImpl = Promise;\n\n    var iter = new AsyncIterator(\n      wrap(innerFn, outerFn, self, tryLocsList),\n      PromiseImpl\n    );\n\n    return exports.isGeneratorFunction(outerFn)\n      ? iter // If outerFn is a generator, return the full iterator.\n      : iter.next().then(function(result) {\n          return result.done ? result.value : iter.next();\n        });\n  };\n\n  function makeInvokeMethod(innerFn, self, context) {\n    var state = GenStateSuspendedStart;\n\n    return function invoke(method, arg) {\n      if (state === GenStateExecuting) {\n        throw new Error(\"Generator is already running\");\n      }\n\n      if (state === GenStateCompleted) {\n        if (method === \"throw\") {\n          throw arg;\n        }\n\n        // Be forgiving, per 25.3.3.3.3 of the spec:\n        // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume\n        return doneResult();\n      }\n\n      context.method = method;\n      context.arg = arg;\n\n      while (true) {\n        var delegate = context.delegate;\n        if (delegate) {\n          var delegateResult = maybeInvokeDelegate(delegate, context);\n          if (delegateResult) {\n            if (delegateResult === ContinueSentinel) continue;\n            return delegateResult;\n          }\n        }\n\n        if (context.method === \"next\") {\n          // Setting context._sent for legacy support of Babel's\n          // function.sent implementation.\n          context.sent = context._sent = context.arg;\n\n        } else if (context.method === \"throw\") {\n          if (state === GenStateSuspendedStart) {\n            state = GenStateCompleted;\n            throw context.arg;\n          }\n\n          context.dispatchException(context.arg);\n\n        } else if (context.method === \"return\") {\n          context.abrupt(\"return\", context.arg);\n        }\n\n        state = GenStateExecuting;\n\n        var record = tryCatch(innerFn, self, context);\n        if (record.type === \"normal\") {\n          // If an exception is thrown from innerFn, we leave state ===\n          // GenStateExecuting and loop back for another invocation.\n          state = context.done\n            ? GenStateCompleted\n            : GenStateSuspendedYield;\n\n          if (record.arg === ContinueSentinel) {\n            continue;\n          }\n\n          return {\n            value: record.arg,\n            done: context.done\n          };\n\n        } else if (record.type === \"throw\") {\n          state = GenStateCompleted;\n          // Dispatch the exception by looping back around to the\n          // context.dispatchException(context.arg) call above.\n          context.method = \"throw\";\n          context.arg = record.arg;\n        }\n      }\n    };\n  }\n\n  // Call delegate.iterator[context.method](context.arg) and handle the\n  // result, either by returning a { value, done } result from the\n  // delegate iterator, or by modifying context.method and context.arg,\n  // setting context.delegate to null, and returning the ContinueSentinel.\n  function maybeInvokeDelegate(delegate, context) {\n    var method = delegate.iterator[context.method];\n    if (method === undefined) {\n      // A .throw or .return when the delegate iterator has no .throw\n      // method always terminates the yield* loop.\n      context.delegate = null;\n\n      if (context.method === \"throw\") {\n        // Note: [\"return\"] must be used for ES3 parsing compatibility.\n        if (delegate.iterator[\"return\"]) {\n          // If the delegate iterator has a return method, give it a\n          // chance to clean up.\n          context.method = \"return\";\n          context.arg = undefined;\n          maybeInvokeDelegate(delegate, context);\n\n          if (context.method === \"throw\") {\n            // If maybeInvokeDelegate(context) changed context.method from\n            // \"return\" to \"throw\", let that override the TypeError below.\n            return ContinueSentinel;\n          }\n        }\n\n        context.method = \"throw\";\n        context.arg = new TypeError(\n          \"The iterator does not provide a 'throw' method\");\n      }\n\n      return ContinueSentinel;\n    }\n\n    var record = tryCatch(method, delegate.iterator, context.arg);\n\n    if (record.type === \"throw\") {\n      context.method = \"throw\";\n      context.arg = record.arg;\n      context.delegate = null;\n      return ContinueSentinel;\n    }\n\n    var info = record.arg;\n\n    if (! info) {\n      context.method = \"throw\";\n      context.arg = new TypeError(\"iterator result is not an object\");\n      context.delegate = null;\n      return ContinueSentinel;\n    }\n\n    if (info.done) {\n      // Assign the result of the finished delegate to the temporary\n      // variable specified by delegate.resultName (see delegateYield).\n      context[delegate.resultName] = info.value;\n\n      // Resume execution at the desired location (see delegateYield).\n      context.next = delegate.nextLoc;\n\n      // If context.method was \"throw\" but the delegate handled the\n      // exception, let the outer generator proceed normally. If\n      // context.method was \"next\", forget context.arg since it has been\n      // \"consumed\" by the delegate iterator. If context.method was\n      // \"return\", allow the original .return call to continue in the\n      // outer generator.\n      if (context.method !== \"return\") {\n        context.method = \"next\";\n        context.arg = undefined;\n      }\n\n    } else {\n      // Re-yield the result returned by the delegate method.\n      return info;\n    }\n\n    // The delegate iterator is finished, so forget it and continue with\n    // the outer generator.\n    context.delegate = null;\n    return ContinueSentinel;\n  }\n\n  // Define Generator.prototype.{next,throw,return} in terms of the\n  // unified ._invoke helper method.\n  defineIteratorMethods(Gp);\n\n  define(Gp, toStringTagSymbol, \"Generator\");\n\n  // A Generator should always return itself as the iterator object when the\n  // @@iterator function is called on it. Some browsers' implementations of the\n  // iterator prototype chain incorrectly implement this, causing the Generator\n  // object to not be returned from this call. This ensures that doesn't happen.\n  // See https://github.com/facebook/regenerator/issues/274 for more details.\n  Gp[iteratorSymbol] = function() {\n    return this;\n  };\n\n  Gp.toString = function() {\n    return \"[object Generator]\";\n  };\n\n  function pushTryEntry(locs) {\n    var entry = { tryLoc: locs[0] };\n\n    if (1 in locs) {\n      entry.catchLoc = locs[1];\n    }\n\n    if (2 in locs) {\n      entry.finallyLoc = locs[2];\n      entry.afterLoc = locs[3];\n    }\n\n    this.tryEntries.push(entry);\n  }\n\n  function resetTryEntry(entry) {\n    var record = entry.completion || {};\n    record.type = \"normal\";\n    delete record.arg;\n    entry.completion = record;\n  }\n\n  function Context(tryLocsList) {\n    // The root entry object (effectively a try statement without a catch\n    // or a finally block) gives us a place to store values thrown from\n    // locations where there is no enclosing try statement.\n    this.tryEntries = [{ tryLoc: \"root\" }];\n    tryLocsList.forEach(pushTryEntry, this);\n    this.reset(true);\n  }\n\n  exports.keys = function(object) {\n    var keys = [];\n    for (var key in object) {\n      keys.push(key);\n    }\n    keys.reverse();\n\n    // Rather than returning an object with a next method, we keep\n    // things simple and return the next function itself.\n    return function next() {\n      while (keys.length) {\n        var key = keys.pop();\n        if (key in object) {\n          next.value = key;\n          next.done = false;\n          return next;\n        }\n      }\n\n      // To avoid creating an additional object, we just hang the .value\n      // and .done properties off the next function object itself. This\n      // also ensures that the minifier will not anonymize the function.\n      next.done = true;\n      return next;\n    };\n  };\n\n  function values(iterable) {\n    if (iterable) {\n      var iteratorMethod = iterable[iteratorSymbol];\n      if (iteratorMethod) {\n        return iteratorMethod.call(iterable);\n      }\n\n      if (typeof iterable.next === \"function\") {\n        return iterable;\n      }\n\n      if (!isNaN(iterable.length)) {\n        var i = -1, next = function next() {\n          while (++i < iterable.length) {\n            if (hasOwn.call(iterable, i)) {\n              next.value = iterable[i];\n              next.done = false;\n              return next;\n            }\n          }\n\n          next.value = undefined;\n          next.done = true;\n\n          return next;\n        };\n\n        return next.next = next;\n      }\n    }\n\n    // Return an iterator with no values.\n    return { next: doneResult };\n  }\n  exports.values = values;\n\n  function doneResult() {\n    return { value: undefined, done: true };\n  }\n\n  Context.prototype = {\n    constructor: Context,\n\n    reset: function(skipTempReset) {\n      this.prev = 0;\n      this.next = 0;\n      // Resetting context._sent for legacy support of Babel's\n      // function.sent implementation.\n      this.sent = this._sent = undefined;\n      this.done = false;\n      this.delegate = null;\n\n      this.method = \"next\";\n      this.arg = undefined;\n\n      this.tryEntries.forEach(resetTryEntry);\n\n      if (!skipTempReset) {\n        for (var name in this) {\n          // Not sure about the optimal order of these conditions:\n          if (name.charAt(0) === \"t\" &&\n              hasOwn.call(this, name) &&\n              !isNaN(+name.slice(1))) {\n            this[name] = undefined;\n          }\n        }\n      }\n    },\n\n    stop: function() {\n      this.done = true;\n\n      var rootEntry = this.tryEntries[0];\n      var rootRecord = rootEntry.completion;\n      if (rootRecord.type === \"throw\") {\n        throw rootRecord.arg;\n      }\n\n      return this.rval;\n    },\n\n    dispatchException: function(exception) {\n      if (this.done) {\n        throw exception;\n      }\n\n      var context = this;\n      function handle(loc, caught) {\n        record.type = \"throw\";\n        record.arg = exception;\n        context.next = loc;\n\n        if (caught) {\n          // If the dispatched exception was caught by a catch block,\n          // then let that catch block handle the exception normally.\n          context.method = \"next\";\n          context.arg = undefined;\n        }\n\n        return !! caught;\n      }\n\n      for (var i = this.tryEntries.length - 1; i >= 0; --i) {\n        var entry = this.tryEntries[i];\n        var record = entry.completion;\n\n        if (entry.tryLoc === \"root\") {\n          // Exception thrown outside of any try block that could handle\n          // it, so set the completion value of the entire function to\n          // throw the exception.\n          return handle(\"end\");\n        }\n\n        if (entry.tryLoc <= this.prev) {\n          var hasCatch = hasOwn.call(entry, \"catchLoc\");\n          var hasFinally = hasOwn.call(entry, \"finallyLoc\");\n\n          if (hasCatch && hasFinally) {\n            if (this.prev < entry.catchLoc) {\n              return handle(entry.catchLoc, true);\n            } else if (this.prev < entry.finallyLoc) {\n              return handle(entry.finallyLoc);\n            }\n\n          } else if (hasCatch) {\n            if (this.prev < entry.catchLoc) {\n              return handle(entry.catchLoc, true);\n            }\n\n          } else if (hasFinally) {\n            if (this.prev < entry.finallyLoc) {\n              return handle(entry.finallyLoc);\n            }\n\n          } else {\n            throw new Error(\"try statement without catch or finally\");\n          }\n        }\n      }\n    },\n\n    abrupt: function(type, arg) {\n      for (var i = this.tryEntries.length - 1; i >= 0; --i) {\n        var entry = this.tryEntries[i];\n        if (entry.tryLoc <= this.prev &&\n            hasOwn.call(entry, \"finallyLoc\") &&\n            this.prev < entry.finallyLoc) {\n          var finallyEntry = entry;\n          break;\n        }\n      }\n\n      if (finallyEntry &&\n          (type === \"break\" ||\n           type === \"continue\") &&\n          finallyEntry.tryLoc <= arg &&\n          arg <= finallyEntry.finallyLoc) {\n        // Ignore the finally entry if control is not jumping to a\n        // location outside the try/catch block.\n        finallyEntry = null;\n      }\n\n      var record = finallyEntry ? finallyEntry.completion : {};\n      record.type = type;\n      record.arg = arg;\n\n      if (finallyEntry) {\n        this.method = \"next\";\n        this.next = finallyEntry.finallyLoc;\n        return ContinueSentinel;\n      }\n\n      return this.complete(record);\n    },\n\n    complete: function(record, afterLoc) {\n      if (record.type === \"throw\") {\n        throw record.arg;\n      }\n\n      if (record.type === \"break\" ||\n          record.type === \"continue\") {\n        this.next = record.arg;\n      } else if (record.type === \"return\") {\n        this.rval = this.arg = record.arg;\n        this.method = \"return\";\n        this.next = \"end\";\n      } else if (record.type === \"normal\" && afterLoc) {\n        this.next = afterLoc;\n      }\n\n      return ContinueSentinel;\n    },\n\n    finish: function(finallyLoc) {\n      for (var i = this.tryEntries.length - 1; i >= 0; --i) {\n        var entry = this.tryEntries[i];\n        if (entry.finallyLoc === finallyLoc) {\n          this.complete(entry.completion, entry.afterLoc);\n          resetTryEntry(entry);\n          return ContinueSentinel;\n        }\n      }\n    },\n\n    \"catch\": function(tryLoc) {\n      for (var i = this.tryEntries.length - 1; i >= 0; --i) {\n        var entry = this.tryEntries[i];\n        if (entry.tryLoc === tryLoc) {\n          var record = entry.completion;\n          if (record.type === \"throw\") {\n            var thrown = record.arg;\n            resetTryEntry(entry);\n          }\n          return thrown;\n        }\n      }\n\n      // The context.catch method must only be called with a location\n      // argument that corresponds to a known catch block.\n      throw new Error(\"illegal catch attempt\");\n    },\n\n    delegateYield: function(iterable, resultName, nextLoc) {\n      this.delegate = {\n        iterator: values(iterable),\n        resultName: resultName,\n        nextLoc: nextLoc\n      };\n\n      if (this.method === \"next\") {\n        // Deliberately forget the last sent value so that we don't\n        // accidentally pass it on to the delegate.\n        this.arg = undefined;\n      }\n\n      return ContinueSentinel;\n    }\n  };\n\n  // Regardless of whether this script is executing as a CommonJS module\n  // or not, return the runtime object so that we can declare the variable\n  // regeneratorRuntime in the outer scope, which allows this module to be\n  // injected easily by `bin/regenerator --include-runtime script.js`.\n  return exports;\n\n}(\n  // If this script is executing as a CommonJS module, use module.exports\n  // as the regeneratorRuntime namespace. Otherwise create a new empty\n  // object. Either way, the resulting object will be used to initialize\n  // the regeneratorRuntime variable at the top of this file.\n  typeof module === \"object\" ? module.exports : {}\n));\n\ntry {\n  regeneratorRuntime = runtime;\n} catch (accidentalStrictMode) {\n  // This module should not be running in strict mode, so the above\n  // assignment should always work unless something is misconfigured. Just\n  // in case runtime.js accidentally runs in strict mode, we can escape\n  // strict mode using a global Function call. This could conceivably fail\n  // if a Content Security Policy forbids using Function, but in that case\n  // the proper solution is to fix the accidental strict mode problem. If\n  // you've misconfigured your bundler to force strict mode and applied a\n  // CSP to forbid Function, and you're not willing to fix either of those\n  // problems, please detail your unique predicament in a GitHub issue.\n  Function(\"r\", \"regeneratorRuntime = r\")(runtime);\n}\n","function _typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar g; // This works in non-strict mode\n\ng = function () {\n  return this;\n}();\n\ntry {\n  // This works if eval is allowed (see CSP)\n  g = g || new Function(\"return this\")();\n} catch (e) {\n  // This works if the window reference is available\n  if ((typeof window === \"undefined\" ? \"undefined\" : _typeof(window)) === \"object\") g = window;\n} // g can still be undefined, but nothing to do about it...\n// We return undefined, instead of nothing here, so it's\n// easier to handle this case. if(!global) { ...}\n\n\nmodule.exports = g;","'use strict';\n\nvar utils = require('./utils');\n\nvar bind = require('./helpers/bind');\n\nvar Axios = require('./core/Axios');\n\nvar mergeConfig = require('./core/mergeConfig');\n\nvar defaults = require('./defaults');\n/**\n * Create an instance of Axios\n *\n * @param {Object} defaultConfig The default config for the instance\n * @return {Axios} A new instance of Axios\n */\n\n\nfunction createInstance(defaultConfig) {\n  var context = new Axios(defaultConfig);\n  var instance = bind(Axios.prototype.request, context); // Copy axios.prototype to instance\n\n  utils.extend(instance, Axios.prototype, context); // Copy context to instance\n\n  utils.extend(instance, context);\n  return instance;\n} // Create the default instance to be exported\n\n\nvar axios = createInstance(defaults); // Expose Axios class to allow class inheritance\n\naxios.Axios = Axios; // Factory for creating new instances\n\naxios.create = function create(instanceConfig) {\n  return createInstance(mergeConfig(axios.defaults, instanceConfig));\n}; // Expose Cancel & CancelToken\n\n\naxios.Cancel = require('./cancel/Cancel');\naxios.CancelToken = require('./cancel/CancelToken');\naxios.isCancel = require('./cancel/isCancel'); // Expose all/spread\n\naxios.all = function all(promises) {\n  return Promise.all(promises);\n};\n\naxios.spread = require('./helpers/spread');\nmodule.exports = axios; // Allow use of default import syntax in TypeScript\n\nmodule.exports[\"default\"] = axios;","'use strict';\n\nvar utils = require('./../utils');\n\nvar buildURL = require('../helpers/buildURL');\n\nvar InterceptorManager = require('./InterceptorManager');\n\nvar dispatchRequest = require('./dispatchRequest');\n\nvar mergeConfig = require('./mergeConfig');\n/**\n * Create a new instance of Axios\n *\n * @param {Object} instanceConfig The default config for the instance\n */\n\n\nfunction Axios(instanceConfig) {\n  this.defaults = instanceConfig;\n  this.interceptors = {\n    request: new InterceptorManager(),\n    response: new InterceptorManager()\n  };\n}\n/**\n * Dispatch a request\n *\n * @param {Object} config The config specific for this request (merged with this.defaults)\n */\n\n\nAxios.prototype.request = function request(config) {\n  /*eslint no-param-reassign:0*/\n  // Allow for axios('example/url'[, config]) a la fetch API\n  if (typeof config === 'string') {\n    config = arguments[1] || {};\n    config.url = arguments[0];\n  } else {\n    config = config || {};\n  }\n\n  config = mergeConfig(this.defaults, config); // Set config.method\n\n  if (config.method) {\n    config.method = config.method.toLowerCase();\n  } else if (this.defaults.method) {\n    config.method = this.defaults.method.toLowerCase();\n  } else {\n    config.method = 'get';\n  } // Hook up interceptors middleware\n\n\n  var chain = [dispatchRequest, undefined];\n  var promise = Promise.resolve(config);\n  this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {\n    chain.unshift(interceptor.fulfilled, interceptor.rejected);\n  });\n  this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {\n    chain.push(interceptor.fulfilled, interceptor.rejected);\n  });\n\n  while (chain.length) {\n    promise = promise.then(chain.shift(), chain.shift());\n  }\n\n  return promise;\n};\n\nAxios.prototype.getUri = function getUri(config) {\n  config = mergeConfig(this.defaults, config);\n  return buildURL(config.url, config.params, config.paramsSerializer).replace(/^\\?/, '');\n}; // Provide aliases for supported request methods\n\n\nutils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function (url, config) {\n    return this.request(mergeConfig(config || {}, {\n      method: method,\n      url: url,\n      data: (config || {}).data\n    }));\n  };\n});\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function (url, data, config) {\n    return this.request(mergeConfig(config || {}, {\n      method: method,\n      url: url,\n      data: data\n    }));\n  };\n});\nmodule.exports = Axios;","'use strict';\n\nvar utils = require('./../utils');\n\nfunction InterceptorManager() {\n  this.handlers = [];\n}\n/**\n * Add a new interceptor to the stack\n *\n * @param {Function} fulfilled The function to handle `then` for a `Promise`\n * @param {Function} rejected The function to handle `reject` for a `Promise`\n *\n * @return {Number} An ID used to remove interceptor later\n */\n\n\nInterceptorManager.prototype.use = function use(fulfilled, rejected) {\n  this.handlers.push({\n    fulfilled: fulfilled,\n    rejected: rejected\n  });\n  return this.handlers.length - 1;\n};\n/**\n * Remove an interceptor from the stack\n *\n * @param {Number} id The ID that was returned by `use`\n */\n\n\nInterceptorManager.prototype.eject = function eject(id) {\n  if (this.handlers[id]) {\n    this.handlers[id] = null;\n  }\n};\n/**\n * Iterate over all the registered interceptors\n *\n * This method is particularly useful for skipping over any\n * interceptors that may have become `null` calling `eject`.\n *\n * @param {Function} fn The function to call for each interceptor\n */\n\n\nInterceptorManager.prototype.forEach = function forEach(fn) {\n  utils.forEach(this.handlers, function forEachHandler(h) {\n    if (h !== null) {\n      fn(h);\n    }\n  });\n};\n\nmodule.exports = InterceptorManager;","'use strict';\n\nvar utils = require('./../utils');\n\nvar transformData = require('./transformData');\n\nvar isCancel = require('../cancel/isCancel');\n\nvar defaults = require('../defaults');\n/**\n * Throws a `Cancel` if cancellation has been requested.\n */\n\n\nfunction throwIfCancellationRequested(config) {\n  if (config.cancelToken) {\n    config.cancelToken.throwIfRequested();\n  }\n}\n/**\n * Dispatch a request to the server using the configured adapter.\n *\n * @param {object} config The config that is to be used for the request\n * @returns {Promise} The Promise to be fulfilled\n */\n\n\nmodule.exports = function dispatchRequest(config) {\n  throwIfCancellationRequested(config); // Ensure headers exist\n\n  config.headers = config.headers || {}; // Transform request data\n\n  config.data = transformData(config.data, config.headers, config.transformRequest); // Flatten headers\n\n  config.headers = utils.merge(config.headers.common || {}, config.headers[config.method] || {}, config.headers);\n  utils.forEach(['delete', 'get', 'head', 'post', 'put', 'patch', 'common'], function cleanHeaderConfig(method) {\n    delete config.headers[method];\n  });\n  var adapter = config.adapter || defaults.adapter;\n  return adapter(config).then(function onAdapterResolution(response) {\n    throwIfCancellationRequested(config); // Transform response data\n\n    response.data = transformData(response.data, response.headers, config.transformResponse);\n    return response;\n  }, function onAdapterRejection(reason) {\n    if (!isCancel(reason)) {\n      throwIfCancellationRequested(config); // Transform response data\n\n      if (reason && reason.response) {\n        reason.response.data = transformData(reason.response.data, reason.response.headers, config.transformResponse);\n      }\n    }\n\n    return Promise.reject(reason);\n  });\n};","'use strict';\n\nvar utils = require('./../utils');\n/**\n * Transform the data for a request or a response\n *\n * @param {Object|String} data The data to be transformed\n * @param {Array} headers The headers for the request or response\n * @param {Array|Function} fns A single function or Array of functions\n * @returns {*} The resulting transformed data\n */\n\n\nmodule.exports = function transformData(data, headers, fns) {\n  /*eslint no-param-reassign:0*/\n  utils.forEach(fns, function transform(fn) {\n    data = fn(data, headers);\n  });\n  return data;\n};","// shim for using process in browser\nvar process = module.exports = {}; // cached from whatever global is present so that test runners that stub it\n// don't break things.  But we need to wrap it in a try catch in case it is\n// wrapped in strict mode code which doesn't define any globals.  It's inside a\n// function because try/catches deoptimize in certain engines.\n\nvar cachedSetTimeout;\nvar cachedClearTimeout;\n\nfunction defaultSetTimout() {\n  throw new Error('setTimeout has not been defined');\n}\n\nfunction defaultClearTimeout() {\n  throw new Error('clearTimeout has not been defined');\n}\n\n(function () {\n  try {\n    if (typeof setTimeout === 'function') {\n      cachedSetTimeout = setTimeout;\n    } else {\n      cachedSetTimeout = defaultSetTimout;\n    }\n  } catch (e) {\n    cachedSetTimeout = defaultSetTimout;\n  }\n\n  try {\n    if (typeof clearTimeout === 'function') {\n      cachedClearTimeout = clearTimeout;\n    } else {\n      cachedClearTimeout = defaultClearTimeout;\n    }\n  } catch (e) {\n    cachedClearTimeout = defaultClearTimeout;\n  }\n})();\n\nfunction runTimeout(fun) {\n  if (cachedSetTimeout === setTimeout) {\n    //normal enviroments in sane situations\n    return setTimeout(fun, 0);\n  } // if setTimeout wasn't available but was latter defined\n\n\n  if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {\n    cachedSetTimeout = setTimeout;\n    return setTimeout(fun, 0);\n  }\n\n  try {\n    // when when somebody has screwed with setTimeout but no I.E. maddness\n    return cachedSetTimeout(fun, 0);\n  } catch (e) {\n    try {\n      // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n      return cachedSetTimeout.call(null, fun, 0);\n    } catch (e) {\n      // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error\n      return cachedSetTimeout.call(this, fun, 0);\n    }\n  }\n}\n\nfunction runClearTimeout(marker) {\n  if (cachedClearTimeout === clearTimeout) {\n    //normal enviroments in sane situations\n    return clearTimeout(marker);\n  } // if clearTimeout wasn't available but was latter defined\n\n\n  if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {\n    cachedClearTimeout = clearTimeout;\n    return clearTimeout(marker);\n  }\n\n  try {\n    // when when somebody has screwed with setTimeout but no I.E. maddness\n    return cachedClearTimeout(marker);\n  } catch (e) {\n    try {\n      // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally\n      return cachedClearTimeout.call(null, marker);\n    } catch (e) {\n      // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.\n      // Some versions of I.E. have different rules for clearTimeout vs setTimeout\n      return cachedClearTimeout.call(this, marker);\n    }\n  }\n}\n\nvar queue = [];\nvar draining = false;\nvar currentQueue;\nvar queueIndex = -1;\n\nfunction cleanUpNextTick() {\n  if (!draining || !currentQueue) {\n    return;\n  }\n\n  draining = false;\n\n  if (currentQueue.length) {\n    queue = currentQueue.concat(queue);\n  } else {\n    queueIndex = -1;\n  }\n\n  if (queue.length) {\n    drainQueue();\n  }\n}\n\nfunction drainQueue() {\n  if (draining) {\n    return;\n  }\n\n  var timeout = runTimeout(cleanUpNextTick);\n  draining = true;\n  var len = queue.length;\n\n  while (len) {\n    currentQueue = queue;\n    queue = [];\n\n    while (++queueIndex < len) {\n      if (currentQueue) {\n        currentQueue[queueIndex].run();\n      }\n    }\n\n    queueIndex = -1;\n    len = queue.length;\n  }\n\n  currentQueue = null;\n  draining = false;\n  runClearTimeout(timeout);\n}\n\nprocess.nextTick = function (fun) {\n  var args = new Array(arguments.length - 1);\n\n  if (arguments.length > 1) {\n    for (var i = 1; i < arguments.length; i++) {\n      args[i - 1] = arguments[i];\n    }\n  }\n\n  queue.push(new Item(fun, args));\n\n  if (queue.length === 1 && !draining) {\n    runTimeout(drainQueue);\n  }\n}; // v8 likes predictible objects\n\n\nfunction Item(fun, array) {\n  this.fun = fun;\n  this.array = array;\n}\n\nItem.prototype.run = function () {\n  this.fun.apply(null, this.array);\n};\n\nprocess.title = 'browser';\nprocess.browser = true;\nprocess.env = {};\nprocess.argv = [];\nprocess.version = ''; // empty string to avoid regexp issues\n\nprocess.versions = {};\n\nfunction noop() {}\n\nprocess.on = noop;\nprocess.addListener = noop;\nprocess.once = noop;\nprocess.off = noop;\nprocess.removeListener = noop;\nprocess.removeAllListeners = noop;\nprocess.emit = noop;\nprocess.prependListener = noop;\nprocess.prependOnceListener = noop;\n\nprocess.listeners = function (name) {\n  return [];\n};\n\nprocess.binding = function (name) {\n  throw new Error('process.binding is not supported');\n};\n\nprocess.cwd = function () {\n  return '/';\n};\n\nprocess.chdir = function (dir) {\n  throw new Error('process.chdir is not supported');\n};\n\nprocess.umask = function () {\n  return 0;\n};","'use strict';\n\nvar utils = require('../utils');\n\nmodule.exports = function normalizeHeaderName(headers, normalizedName) {\n  utils.forEach(headers, function processHeader(value, name) {\n    if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {\n      headers[normalizedName] = value;\n      delete headers[name];\n    }\n  });\n};","'use strict';\n\nvar createError = require('./createError');\n/**\n * Resolve or reject a Promise based on response status.\n *\n * @param {Function} resolve A function that resolves the promise.\n * @param {Function} reject A function that rejects the promise.\n * @param {object} response The response.\n */\n\n\nmodule.exports = function settle(resolve, reject, response) {\n  var validateStatus = response.config.validateStatus;\n\n  if (!response.status || !validateStatus || validateStatus(response.status)) {\n    resolve(response);\n  } else {\n    reject(createError('Request failed with status code ' + response.status, response.config, null, response.request, response));\n  }\n};","'use strict';\n/**\n * Update an Error with the specified config, error code, and response.\n *\n * @param {Error} error The error to update.\n * @param {Object} config The config.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n * @returns {Error} The error.\n */\n\nmodule.exports = function enhanceError(error, config, code, request, response) {\n  error.config = config;\n\n  if (code) {\n    error.code = code;\n  }\n\n  error.request = request;\n  error.response = response;\n  error.isAxiosError = true;\n\n  error.toJSON = function toJSON() {\n    return {\n      // Standard\n      message: this.message,\n      name: this.name,\n      // Microsoft\n      description: this.description,\n      number: this.number,\n      // Mozilla\n      fileName: this.fileName,\n      lineNumber: this.lineNumber,\n      columnNumber: this.columnNumber,\n      stack: this.stack,\n      // Axios\n      config: this.config,\n      code: this.code\n    };\n  };\n\n  return error;\n};","'use strict';\n\nvar utils = require('./../utils');\n\nmodule.exports = utils.isStandardBrowserEnv() ? // Standard browser envs support document.cookie\nfunction standardBrowserEnv() {\n  return {\n    write: function write(name, value, expires, path, domain, secure) {\n      var cookie = [];\n      cookie.push(name + '=' + encodeURIComponent(value));\n\n      if (utils.isNumber(expires)) {\n        cookie.push('expires=' + new Date(expires).toGMTString());\n      }\n\n      if (utils.isString(path)) {\n        cookie.push('path=' + path);\n      }\n\n      if (utils.isString(domain)) {\n        cookie.push('domain=' + domain);\n      }\n\n      if (secure === true) {\n        cookie.push('secure');\n      }\n\n      document.cookie = cookie.join('; ');\n    },\n    read: function read(name) {\n      var match = document.cookie.match(new RegExp('(^|;\\\\s*)(' + name + ')=([^;]*)'));\n      return match ? decodeURIComponent(match[3]) : null;\n    },\n    remove: function remove(name) {\n      this.write(name, '', Date.now() - 86400000);\n    }\n  };\n}() : // Non standard browser env (web workers, react-native) lack needed support.\nfunction nonStandardBrowserEnv() {\n  return {\n    write: function write() {},\n    read: function read() {\n      return null;\n    },\n    remove: function remove() {}\n  };\n}();","'use strict';\n\nvar isAbsoluteURL = require('../helpers/isAbsoluteURL');\n\nvar combineURLs = require('../helpers/combineURLs');\n/**\n * Creates a new URL by combining the baseURL with the requestedURL,\n * only when the requestedURL is not already an absolute URL.\n * If the requestURL is absolute, this function returns the requestedURL untouched.\n *\n * @param {string} baseURL The base URL\n * @param {string} requestedURL Absolute or relative URL to combine\n * @returns {string} The combined full path\n */\n\n\nmodule.exports = function buildFullPath(baseURL, requestedURL) {\n  if (baseURL && !isAbsoluteURL(requestedURL)) {\n    return combineURLs(baseURL, requestedURL);\n  }\n\n  return requestedURL;\n};","'use strict';\n/**\n * Determines whether the specified URL is absolute\n *\n * @param {string} url The URL to test\n * @returns {boolean} True if the specified URL is absolute, otherwise false\n */\n\nmodule.exports = function isAbsoluteURL(url) {\n  // A URL is considered absolute if it begins with \"<scheme>://\" or \"//\" (protocol-relative URL).\n  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed\n  // by any combination of letters, digits, plus, period, or hyphen.\n  return /^([a-z][a-z\\d\\+\\-\\.]*:)?\\/\\//i.test(url);\n};","'use strict';\n/**\n * Creates a new URL by combining the specified URLs\n *\n * @param {string} baseURL The base URL\n * @param {string} relativeURL The relative URL\n * @returns {string} The combined URL\n */\n\nmodule.exports = function combineURLs(baseURL, relativeURL) {\n  return relativeURL ? baseURL.replace(/\\/+$/, '') + '/' + relativeURL.replace(/^\\/+/, '') : baseURL;\n};","'use strict';\n\nvar utils = require('./../utils'); // Headers whose duplicates are ignored by node\n// c.f. https://nodejs.org/api/http.html#http_message_headers\n\n\nvar ignoreDuplicateOf = ['age', 'authorization', 'content-length', 'content-type', 'etag', 'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since', 'last-modified', 'location', 'max-forwards', 'proxy-authorization', 'referer', 'retry-after', 'user-agent'];\n/**\n * Parse headers into an object\n *\n * ```\n * Date: Wed, 27 Aug 2014 08:58:49 GMT\n * Content-Type: application/json\n * Connection: keep-alive\n * Transfer-Encoding: chunked\n * ```\n *\n * @param {String} headers Headers needing to be parsed\n * @returns {Object} Headers parsed into an object\n */\n\nmodule.exports = function parseHeaders(headers) {\n  var parsed = {};\n  var key;\n  var val;\n  var i;\n\n  if (!headers) {\n    return parsed;\n  }\n\n  utils.forEach(headers.split('\\n'), function parser(line) {\n    i = line.indexOf(':');\n    key = utils.trim(line.substr(0, i)).toLowerCase();\n    val = utils.trim(line.substr(i + 1));\n\n    if (key) {\n      if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {\n        return;\n      }\n\n      if (key === 'set-cookie') {\n        parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);\n      } else {\n        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n      }\n    }\n  });\n  return parsed;\n};","'use strict';\n\nvar utils = require('./../utils');\n\nmodule.exports = utils.isStandardBrowserEnv() ? // Standard browser envs have full support of the APIs needed to test\n// whether the request URL is of the same origin as current location.\nfunction standardBrowserEnv() {\n  var msie = /(msie|trident)/i.test(navigator.userAgent);\n  var urlParsingNode = document.createElement('a');\n  var originURL;\n  /**\n  * Parse a URL to discover it's components\n  *\n  * @param {String} url The URL to be parsed\n  * @returns {Object}\n  */\n\n  function resolveURL(url) {\n    var href = url;\n\n    if (msie) {\n      // IE needs attribute set twice to normalize properties\n      urlParsingNode.setAttribute('href', href);\n      href = urlParsingNode.href;\n    }\n\n    urlParsingNode.setAttribute('href', href); // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils\n\n    return {\n      href: urlParsingNode.href,\n      protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n      host: urlParsingNode.host,\n      search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n      hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n      hostname: urlParsingNode.hostname,\n      port: urlParsingNode.port,\n      pathname: urlParsingNode.pathname.charAt(0) === '/' ? urlParsingNode.pathname : '/' + urlParsingNode.pathname\n    };\n  }\n\n  originURL = resolveURL(window.location.href);\n  /**\n  * Determine if a URL shares the same origin as the current location\n  *\n  * @param {String} requestURL The URL to test\n  * @returns {boolean} True if URL shares the same origin, otherwise false\n  */\n\n  return function isURLSameOrigin(requestURL) {\n    var parsed = utils.isString(requestURL) ? resolveURL(requestURL) : requestURL;\n    return parsed.protocol === originURL.protocol && parsed.host === originURL.host;\n  };\n}() : // Non standard browser envs (web workers, react-native) lack needed support.\nfunction nonStandardBrowserEnv() {\n  return function isURLSameOrigin() {\n    return true;\n  };\n}();","'use strict';\n\nvar Cancel = require('./Cancel');\n/**\n * A `CancelToken` is an object that can be used to request cancellation of an operation.\n *\n * @class\n * @param {Function} executor The executor function.\n */\n\n\nfunction CancelToken(executor) {\n  if (typeof executor !== 'function') {\n    throw new TypeError('executor must be a function.');\n  }\n\n  var resolvePromise;\n  this.promise = new Promise(function promiseExecutor(resolve) {\n    resolvePromise = resolve;\n  });\n  var token = this;\n  executor(function cancel(message) {\n    if (token.reason) {\n      // Cancellation has already been requested\n      return;\n    }\n\n    token.reason = new Cancel(message);\n    resolvePromise(token.reason);\n  });\n}\n/**\n * Throws a `Cancel` if cancellation has been requested.\n */\n\n\nCancelToken.prototype.throwIfRequested = function throwIfRequested() {\n  if (this.reason) {\n    throw this.reason;\n  }\n};\n/**\n * Returns an object that contains a new `CancelToken` and a function that, when called,\n * cancels the `CancelToken`.\n */\n\n\nCancelToken.source = function source() {\n  var cancel;\n  var token = new CancelToken(function executor(c) {\n    cancel = c;\n  });\n  return {\n    token: token,\n    cancel: cancel\n  };\n};\n\nmodule.exports = CancelToken;","'use strict';\n/**\n * Syntactic sugar for invoking a function and expanding an array for arguments.\n *\n * Common use case would be to use `Function.prototype.apply`.\n *\n *  ```js\n *  function f(x, y, z) {}\n *  var args = [1, 2, 3];\n *  f.apply(null, args);\n *  ```\n *\n * With `spread` this example can be re-written.\n *\n *  ```js\n *  spread(function(x, y, z) {})([1, 2, 3]);\n *  ```\n *\n * @param {Function} callback\n * @returns {Function}\n */\n\nmodule.exports = function spread(callback) {\n  return function wrap(arr) {\n    return callback.apply(null, arr);\n  };\n};","function _typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\n/*\nCopyright (c) NAVER Corp.\nname: @egjs/component\nlicense: MIT\nauthor: NAVER Corp.\nrepository: https://github.com/naver/egjs-component\nversion: 2.2.2\n*/\n\n/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\nfunction __values(o) {\n  var s = typeof Symbol === \"function\" && Symbol.iterator,\n      m = s && o[s],\n      i = 0;\n  if (m) return m.call(o);\n  if (o && typeof o.length === \"number\") return {\n    next: function next() {\n      if (o && i >= o.length) o = void 0;\n      return {\n        value: o && o[i++],\n        done: !o\n      };\n    }\n  };\n  throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\n}\n/*\n * Copyright (c) 2015 NAVER Corp.\n * egjs projects are licensed under the MIT license\n */\n\n\nfunction isUndefined(value) {\n  return typeof value === \"undefined\";\n}\n/**\n * A class used to manage events in a component\n * @ko 컴포넌트의 이벤트을 관리할 수 있게 하는 클래스\n * @alias eg.Component\n */\n\n\nvar Component = /*#__PURE__*/function () {\n  /**\n   * @support {\"ie\": \"7+\", \"ch\" : \"latest\", \"ff\" : \"latest\",  \"sf\" : \"latest\", \"edge\" : \"latest\", \"ios\" : \"7+\", \"an\" : \"2.1+ (except 3.x)\"}\n   */\n  function Component() {\n    /**\n     * @deprecated\n     * @private\n     */\n    this.options = {};\n    this._eventHandler = {};\n  }\n  /**\n   * Triggers a custom event.\n   * @ko 커스텀 이벤트를 발생시킨다\n   * @param {string} eventName The name of the custom event to be triggered <ko>발생할 커스텀 이벤트의 이름</ko>\n   * @param {object} customEvent Event data to be sent when triggering a custom event <ko>커스텀 이벤트가 발생할 때 전달할 데이터</ko>\n   * @param {any[]} restParam Additional parameters when triggering a custom event <ko>커스텀 이벤트가 발생할 때 필요시 추가적으로 전달할 데이터</ko>\n   * @return Indicates whether the event has occurred. If the stop() method is called by a custom event handler, it will return false and prevent the event from occurring. <a href=\"https://github.com/naver/egjs-component/wiki/How-to-make-Component-event-design%3F\">Ref</a> <ko>이벤트 발생 여부. 커스텀 이벤트 핸들러에서 stop() 메서드를 호출하면 'false'를 반환하고 이벤트 발생을 중단한다. <a href=\"https://github.com/naver/egjs-component/wiki/How-to-make-Component-event-design%3F\">참고</a></ko>\n   * @example\n   * ```\n   * class Some extends eg.Component {\n   *   some(){\n   *     if(this.trigger(\"beforeHi\")){ // When event call to stop return false.\n   *       this.trigger(\"hi\");// fire hi event.\n   *     }\n   *   }\n   * }\n   *\n   * const some = new Some();\n   * some.on(\"beforeHi\", (e) => {\n   *   if(condition){\n   *     e.stop(); // When event call to stop, `hi` event not call.\n   *   }\n   * });\n   * some.on(\"hi\", (e) => {\n   *   // `currentTarget` is component instance.\n   *   console.log(some === e.currentTarget); // true\n   * });\n   * // If you want to more know event design. You can see article.\n   * // https://github.com/naver/egjs-component/wiki/How-to-make-Component-event-design%3F\n   * ```\n   */\n\n\n  var __proto = Component.prototype;\n\n  __proto.trigger = function (eventName) {\n    var _this = this;\n\n    var params = [];\n\n    for (var _i = 1; _i < arguments.length; _i++) {\n      params[_i - 1] = arguments[_i];\n    }\n\n    var handlerList = this._eventHandler[eventName] || [];\n    var hasHandlerList = handlerList.length > 0;\n\n    if (!hasHandlerList) {\n      return true;\n    }\n\n    var customEvent = params[0] || {};\n    var restParams = params.slice(1); // If detach method call in handler in first time then handler list calls.\n\n    handlerList = handlerList.concat();\n    var isCanceled = false; // This should be done like this to pass previous tests\n\n    customEvent.eventType = eventName;\n\n    customEvent.stop = function () {\n      isCanceled = true;\n    };\n\n    customEvent.currentTarget = this;\n    var arg = [customEvent];\n\n    if (restParams.length >= 1) {\n      arg = arg.concat(restParams);\n    }\n\n    handlerList.forEach(function (handler) {\n      handler.apply(_this, arg);\n    });\n    return !isCanceled;\n  };\n  /**\n   * Executed event just one time.\n   * @ko 이벤트가 한번만 실행된다.\n   * @param {string} eventName The name of the event to be attached <ko>등록할 이벤트의 이름</ko>\n   * @param {function} handlerToAttach The handler function of the event to be attached <ko>등록할 이벤트의 핸들러 함수</ko>\n   * @return An instance of a component itself<ko>컴포넌트 자신의 인스턴스</ko>\n   * @example\n   * ```\n   * class Some extends eg.Component {\n   * hi() {\n   *   alert(\"hi\");\n   * }\n   * thing() {\n   *   this.once(\"hi\", this.hi);\n   * }\n   *\n   * var some = new Some();\n   * some.thing();\n   * some.trigger(\"hi\");\n   * // fire alert(\"hi\");\n   * some.trigger(\"hi\");\n   * // Nothing happens\n   * ```\n   */\n\n\n  __proto.once = function (eventName, handlerToAttach) {\n    var _this = this;\n\n    if (_typeof(eventName) === \"object\" && isUndefined(handlerToAttach)) {\n      var eventHash = eventName;\n\n      for (var key in eventHash) {\n        this.once(key, eventHash[key]);\n      }\n\n      return this;\n    } else if (typeof eventName === \"string\" && typeof handlerToAttach === \"function\") {\n      var listener_1 = function listener_1() {\n        var args = [];\n\n        for (var _i = 0; _i < arguments.length; _i++) {\n          args[_i] = arguments[_i];\n        }\n\n        handlerToAttach.apply(_this, args);\n\n        _this.off(eventName, listener_1);\n      };\n\n      this.on(eventName, listener_1);\n    }\n\n    return this;\n  };\n  /**\n   * Checks whether an event has been attached to a component.\n   * @ko 컴포넌트에 이벤트가 등록됐는지 확인한다.\n   * @param {string} eventName The name of the event to be attached <ko>등록 여부를 확인할 이벤트의 이름</ko>\n   * @return {boolean} Indicates whether the event is attached. <ko>이벤트 등록 여부</ko>\n   * @example\n   * ```\n   * class Some extends eg.Component {\n   *   some() {\n   *     this.hasOn(\"hi\");// check hi event.\n   *   }\n   * }\n   * ```\n   */\n\n\n  __proto.hasOn = function (eventName) {\n    return !!this._eventHandler[eventName];\n  };\n  /**\n   * Attaches an event to a component.\n   * @ko 컴포넌트에 이벤트를 등록한다.\n   * @param {string} eventName The name of the event to be attached <ko>등록할 이벤트의 이름</ko>\n   * @param {function} handlerToAttach The handler function of the event to be attached <ko>등록할 이벤트의 핸들러 함수</ko>\n   * @return An instance of a component itself<ko>컴포넌트 자신의 인스턴스</ko>\n   * @example\n   * ```\n   * class Some extends eg.Component {\n   *   hi() {\n   *     console.log(\"hi\");\n   *   }\n   *   some() {\n   *     this.on(\"hi\",this.hi); //attach event\n   *   }\n   * }\n   * ```\n   */\n\n\n  __proto.on = function (eventName, handlerToAttach) {\n    if (_typeof(eventName) === \"object\" && isUndefined(handlerToAttach)) {\n      var eventHash = eventName;\n\n      for (var name in eventHash) {\n        this.on(name, eventHash[name]);\n      }\n\n      return this;\n    } else if (typeof eventName === \"string\" && typeof handlerToAttach === \"function\") {\n      var handlerList = this._eventHandler[eventName];\n\n      if (isUndefined(handlerList)) {\n        this._eventHandler[eventName] = [];\n        handlerList = this._eventHandler[eventName];\n      }\n\n      handlerList.push(handlerToAttach);\n    }\n\n    return this;\n  };\n  /**\n   * Detaches an event from the component.\n   * @ko 컴포넌트에 등록된 이벤트를 해제한다\n   * @param {string} eventName The name of the event to be detached <ko>해제할 이벤트의 이름</ko>\n   * @param {function} handlerToDetach The handler function of the event to be detached <ko>해제할 이벤트의 핸들러 함수</ko>\n   * @return An instance of a component itself <ko>컴포넌트 자신의 인스턴스</ko>\n   * @example\n   * ```\n   * class Some extends eg.Component {\n   *   hi() {\n   *     console.log(\"hi\");\n   *   }\n   *   some() {\n   *     this.off(\"hi\",this.hi); //detach event\n   *   }\n   * }\n   * ```\n   */\n\n\n  __proto.off = function (eventName, handlerToDetach) {\n    var e_1, _a; // Detach all event handlers.\n\n\n    if (isUndefined(eventName)) {\n      this._eventHandler = {};\n      return this;\n    } // Detach all handlers for eventname or detach event handlers by object.\n\n\n    if (isUndefined(handlerToDetach)) {\n      if (typeof eventName === \"string\") {\n        delete this._eventHandler[eventName];\n        return this;\n      } else {\n        var eventHash = eventName;\n\n        for (var name in eventHash) {\n          this.off(name, eventHash[name]);\n        }\n\n        return this;\n      }\n    } // Detach single event handler\n\n\n    var handlerList = this._eventHandler[eventName];\n\n    if (handlerList) {\n      var idx = 0;\n\n      try {\n        for (var handlerList_1 = __values(handlerList), handlerList_1_1 = handlerList_1.next(); !handlerList_1_1.done; handlerList_1_1 = handlerList_1.next()) {\n          var handlerFunction = handlerList_1_1.value;\n\n          if (handlerFunction === handlerToDetach) {\n            handlerList.splice(idx, 1);\n            break;\n          }\n\n          idx++;\n        }\n      } catch (e_1_1) {\n        e_1 = {\n          error: e_1_1\n        };\n      } finally {\n        try {\n          if (handlerList_1_1 && !handlerList_1_1.done && (_a = handlerList_1[\"return\"])) _a.call(handlerList_1);\n        } finally {\n          if (e_1) throw e_1.error;\n        }\n      }\n    }\n\n    return this;\n  };\n  /**\n   * Version info string\n   * @ko 버전정보 문자열\n   * @name VERSION\n   * @static\n   * @example\n   * eg.Component.VERSION;  // ex) 2.0.0\n   * @memberof eg.Component\n   */\n\n\n  Component.VERSION = \"2.2.2\";\n  return Component;\n}();\n\nexport default Component;","/*\nCopyright (c) 2019-present NAVER Corp.\nname: @egjs/list-differ\nlicense: MIT\nauthor: NAVER Corp.\nrepository: https://github.com/naver/egjs-list-differ\nversion: 1.0.0\n*/\n\n/*\negjs-list-differ\nCopyright (c) 2019-present NAVER Corp.\nMIT license\n*/\nvar PolyMap = /*#__PURE__*/function () {\n  function PolyMap() {\n    this.keys = [];\n    this.values = [];\n  }\n\n  var __proto = PolyMap.prototype;\n\n  __proto.get = function (key) {\n    return this.values[this.keys.indexOf(key)];\n  };\n\n  __proto.set = function (key, value) {\n    var keys = this.keys;\n    var values = this.values;\n    var prevIndex = keys.indexOf(key);\n    var index = prevIndex === -1 ? keys.length : prevIndex;\n    keys[index] = key;\n    values[index] = value;\n  };\n\n  return PolyMap;\n}();\n/*\negjs-list-differ\nCopyright (c) 2019-present NAVER Corp.\nMIT license\n*/\n\n\nvar HashMap = /*#__PURE__*/function () {\n  function HashMap() {\n    this.object = {};\n  }\n\n  var __proto = HashMap.prototype;\n\n  __proto.get = function (key) {\n    return this.object[key];\n  };\n\n  __proto.set = function (key, value) {\n    this.object[key] = value;\n  };\n\n  return HashMap;\n}();\n/*\negjs-list-differ\nCopyright (c) 2019-present NAVER Corp.\nMIT license\n*/\n\n\nvar SUPPORT_MAP = typeof Map === \"function\";\n/*\negjs-list-differ\nCopyright (c) 2019-present NAVER Corp.\nMIT license\n*/\n\nvar Link = /*#__PURE__*/function () {\n  function Link() {}\n\n  var __proto = Link.prototype;\n\n  __proto.connect = function (prevLink, nextLink) {\n    this.prev = prevLink;\n    this.next = nextLink;\n    prevLink && (prevLink.next = this);\n    nextLink && (nextLink.prev = this);\n  };\n\n  __proto.disconnect = function () {\n    // In double linked list, diconnect the interconnected relationship.\n    var prevLink = this.prev;\n    var nextLink = this.next;\n    prevLink && (prevLink.next = nextLink);\n    nextLink && (nextLink.prev = prevLink);\n  };\n\n  __proto.getIndex = function () {\n    var link = this;\n    var index = -1;\n\n    while (link) {\n      link = link.prev;\n      ++index;\n    }\n\n    return index;\n  };\n\n  return Link;\n}();\n/*\negjs-list-differ\nCopyright (c) 2019-present NAVER Corp.\nMIT license\n*/\n\n\nfunction orderChanged(changed, fixed) {\n  // It is roughly in the order of these examples.\n  // 4, 6, 0, 2, 1, 3, 5, 7\n  var fromLinks = []; // 0, 1, 2, 3, 4, 5, 6, 7\n\n  var toLinks = [];\n  changed.forEach(function (_a) {\n    var from = _a[0],\n        to = _a[1];\n    var link = new Link();\n    fromLinks[from] = link;\n    toLinks[to] = link;\n  }); // `fromLinks` are connected to each other by double linked list.\n\n  fromLinks.forEach(function (link, i) {\n    link.connect(fromLinks[i - 1]);\n  });\n  return changed.filter(function (_, i) {\n    return !fixed[i];\n  }).map(function (_a, i) {\n    var from = _a[0],\n        to = _a[1];\n\n    if (from === to) {\n      return [0, 0];\n    }\n\n    var fromLink = fromLinks[from];\n    var toLink = toLinks[to - 1];\n    var fromIndex = fromLink.getIndex(); // Disconnect the link connected to `fromLink`.\n\n    fromLink.disconnect(); // Connect `fromLink` to the right of `toLink`.\n\n    if (!toLink) {\n      fromLink.connect(undefined, fromLinks[0]);\n    } else {\n      fromLink.connect(toLink, toLink.next);\n    }\n\n    var toIndex = fromLink.getIndex();\n    return [fromIndex, toIndex];\n  });\n}\n\nvar Result = /*#__PURE__*/function () {\n  function Result(prevList, list, added, removed, changed, maintained, changedBeforeAdded, fixed) {\n    this.prevList = prevList;\n    this.list = list;\n    this.added = added;\n    this.removed = removed;\n    this.changed = changed;\n    this.maintained = maintained;\n    this.changedBeforeAdded = changedBeforeAdded;\n    this.fixed = fixed;\n  }\n\n  var __proto = Result.prototype;\n  Object.defineProperty(__proto, \"ordered\", {\n    get: function get() {\n      if (!this.cacheOrdered) {\n        this.caculateOrdered();\n      }\n\n      return this.cacheOrdered;\n    },\n    enumerable: true,\n    configurable: true\n  });\n  Object.defineProperty(__proto, \"pureChanged\", {\n    get: function get() {\n      if (!this.cachePureChanged) {\n        this.caculateOrdered();\n      }\n\n      return this.cachePureChanged;\n    },\n    enumerable: true,\n    configurable: true\n  });\n\n  __proto.caculateOrdered = function () {\n    var ordered = orderChanged(this.changedBeforeAdded, this.fixed);\n    var changed = this.changed;\n    var pureChanged = [];\n    this.cacheOrdered = ordered.filter(function (_a, i) {\n      var from = _a[0],\n          to = _a[1];\n      var _b = changed[i],\n          fromBefore = _b[0],\n          toBefore = _b[1];\n\n      if (from !== to) {\n        pureChanged.push([fromBefore, toBefore]);\n        return true;\n      }\n    });\n    this.cachePureChanged = pureChanged;\n  };\n\n  return Result;\n}();\n/**\n *\n * @memberof eg.ListDiffer\n * @static\n * @function\n * @param - Previous List <ko> 이전 목록 </ko>\n * @param - List to Update <ko> 업데이트 할 목록 </ko>\n * @param - This callback function returns the key of the item. <ko> 아이템의 키를 반환하는 콜백 함수입니다.</ko>\n * @return - Returns the diff between `prevList` and `list` <ko> `prevList`와 `list`의 다른 점을 반환한다.</ko>\n * @example\n * import { diff } from \"@egjs/list-differ\";\n * // script => eg.ListDiffer.diff\n * const result = diff([0, 1, 2, 3, 4, 5], [7, 8, 0, 4, 3, 6, 2, 1], e => e);\n * // List before update\n * // [1, 2, 3, 4, 5]\n * console.log(result.prevList);\n * // Updated list\n * // [4, 3, 6, 2, 1]\n * console.log(result.list);\n * // Index array of values added to `list`\n * // [0, 1, 5]\n * console.log(result.added);\n * // Index array of values removed in `prevList`\n * // [5]\n * console.log(result.removed);\n * // An array of index pairs of `prevList` and `list` with different indexes from `prevList` and `list`\n * // [[0, 2], [4, 3], [3, 4], [2, 6], [1, 7]]\n * console.log(result.changed);\n * // The subset of `changed` and an array of index pairs that moved data directly. Indicate an array of absolute index pairs of `ordered`.(Formatted by: Array<[index of prevList, index of list]>)\n * // [[4, 3], [3, 4], [2, 6]]\n * console.log(result.pureChanged);\n * // An array of index pairs to be `ordered` that can synchronize `list` before adding data. (Formatted by: Array<[prevIndex, nextIndex]>)\n * // [[4, 1], [4, 2], [4, 3]]\n * console.log(result.ordered);\n * // An array of index pairs of `prevList` and `list` that have not been added/removed so data is preserved\n * // [[0, 2], [4, 3], [3, 4], [2, 6], [1, 7]]\n * console.log(result.maintained);\n */\n\n\nfunction diff(prevList, list, findKeyCallback) {\n  var mapClass = SUPPORT_MAP ? Map : findKeyCallback ? HashMap : PolyMap;\n\n  var callback = findKeyCallback || function (e) {\n    return e;\n  };\n\n  var added = [];\n  var removed = [];\n  var maintained = [];\n  var prevKeys = prevList.map(callback);\n  var keys = list.map(callback);\n  var prevKeyMap = new mapClass();\n  var keyMap = new mapClass();\n  var changedBeforeAdded = [];\n  var fixed = [];\n  var removedMap = {};\n  var changed = [];\n  var addedCount = 0;\n  var removedCount = 0; // Add prevKeys and keys to the hashmap.\n\n  prevKeys.forEach(function (key, prevListIndex) {\n    prevKeyMap.set(key, prevListIndex);\n  });\n  keys.forEach(function (key, listIndex) {\n    keyMap.set(key, listIndex);\n  }); // Compare `prevKeys` and `keys` and add them to `removed` if they are not in `keys`.\n\n  prevKeys.forEach(function (key, prevListIndex) {\n    var listIndex = keyMap.get(key); // In prevList, but not in list, it is removed.\n\n    if (typeof listIndex === \"undefined\") {\n      ++removedCount;\n      removed.push(prevListIndex);\n    } else {\n      removedMap[listIndex] = removedCount;\n    }\n  }); // Compare `prevKeys` and `keys` and add them to `added` if they are not in `prevKeys`.\n\n  keys.forEach(function (key, listIndex) {\n    var prevListIndex = prevKeyMap.get(key); // In list, but not in prevList, it is added.\n\n    if (typeof prevListIndex === \"undefined\") {\n      added.push(listIndex);\n      ++addedCount;\n    } else {\n      maintained.push([prevListIndex, listIndex]);\n      removedCount = removedMap[listIndex] || 0;\n      changedBeforeAdded.push([prevListIndex - removedCount, listIndex - addedCount]);\n      fixed.push(listIndex === prevListIndex);\n\n      if (prevListIndex !== listIndex) {\n        changed.push([prevListIndex, listIndex]);\n      }\n    }\n  }); // Sort by ascending order of 'to(list's index).\n\n  removed.reverse();\n  return new Result(prevList, list, added, removed, changed, maintained, changedBeforeAdded, fixed);\n}\n/**\n * A module that checks diff when values are added, removed, or changed in an array.\n * @ko 배열 또는 오브젝트에서 값이 추가되거나 삭제되거나 순서가 변경사항을 체크하는 모듈입니다.\n * @memberof eg\n */\n\n\nvar ListDiffer = /*#__PURE__*/function () {\n  /**\n   * @param - Initializing Data Array. <ko> 초기 설정할 데이터 배열.</ko>\n   * @param - This callback function returns the key of the item. <ko> 아이템의 키를 반환하는 콜백 함수입니다.</ko>\n   * @example\n   * import ListDiffer from \"@egjs/list-differ\";\n   * // script => eg.ListDiffer\n   * const differ = new ListDiffer([0, 1, 2, 3, 4, 5], e => e);\n   * const result = differ.update([7, 8, 0, 4, 3, 6, 2, 1]);\n   * // List before update\n   * // [1, 2, 3, 4, 5]\n   * console.log(result.prevList);\n   * // Updated list\n   * // [4, 3, 6, 2, 1]\n   * console.log(result.list);\n   * // Index array of values added to `list`.\n   * // [0, 1, 5]\n   * console.log(result.added);\n   * // Index array of values removed in `prevList`.\n   * // [5]\n   * console.log(result.removed);\n   * // An array of index pairs of `prevList` and `list` with different indexes from `prevList` and `list`.\n   * // [[0, 2], [4, 3], [3, 4], [2, 6], [1, 7]]\n   * console.log(result.changed);\n   * // The subset of `changed` and an array of index pairs that moved data directly. Indicate an array of absolute index pairs of `ordered`.(Formatted by: Array<[index of prevList, index of list]>)\n   * // [[4, 3], [3, 4], [2, 6]]\n   * console.log(result.pureChanged);\n   * // An array of index pairs to be `ordered` that can synchronize `list` before adding data. (Formatted by: Array<[prevIndex, nextIndex]>)\n   * // [[4, 1], [4, 2], [4, 3]]\n   * console.log(result.ordered);\n   * // An array of index pairs of `prevList` and `list` that have not been added/removed so data is preserved.\n   * // [[0, 2], [4, 3], [3, 4], [2, 6], [1, 7]]\n   * console.log(result.maintained);\n   */\n  function ListDiffer(list, findKeyCallback) {\n    if (list === void 0) {\n      list = [];\n    }\n\n    this.findKeyCallback = findKeyCallback;\n    this.list = [].slice.call(list);\n  }\n  /**\n   * Update list.\n   * @ko 리스트를 업데이트를 합니다.\n   * @param - List to update <ko> 업데이트할 리스트 </ko>\n   * @return - Returns the results of an update from `prevList` to `list`.<ko> `prevList`에서 `list`로 업데이트한 결과를 반환한다. </ko>\n   */\n\n\n  var __proto = ListDiffer.prototype;\n\n  __proto.update = function (list) {\n    var newData = [].slice.call(list);\n    var result = diff(this.list, newData, this.findKeyCallback);\n    this.list = newData;\n    return result;\n  };\n\n  return ListDiffer;\n}();\n/*\negjs-list-differ\nCopyright (c) 2019-present NAVER Corp.\nMIT license\n*/\n\n\nexport default ListDiffer;\nexport { diff };","/*\nCopyright (c) 2017 NAVER Corp.\r\n@egjs/lazyloaded JavaScript library\r\n@egjs/lazyloaded project is licensed under the MIT license\r\n\r\n\r\n@version 0.0.2\n*/\nimport Component from '@egjs/component';\nvar isWindow = typeof window !== \"undefined\";\nvar ua = isWindow ? window.navigator.userAgent : \"\";\nvar SUPPORT_COMPUTEDSTYLE = isWindow ? !!(\"getComputedStyle\" in window) : false;\nvar IS_IE = /MSIE|Trident|Windows Phone|Edge/.test(ua);\nvar SUPPORT_ADDEVENTLISTENER = isWindow ? !!(\"addEventListener\" in document) : false;\nvar WIDTH = \"width\";\nvar HEIGHT = \"height\";\n\nfunction getAttribute(el, name) {\n  return el.getAttribute(name) || \"\";\n}\n\nfunction toArray(arr) {\n  return [].slice.call(arr);\n}\n\nfunction isDataAttribute(target, prefix) {\n  if (prefix === void 0) {\n    prefix = \"data-\";\n  }\n\n  return !!target.getAttribute(prefix + \"width\");\n}\n\nfunction addEvent(element, type, handler) {\n  if (SUPPORT_ADDEVENTLISTENER) {\n    element.addEventListener(type, handler, false);\n  } else if (element.attachEvent) {\n    element.attachEvent(\"on\" + type, handler);\n  } else {\n    element[\"on\" + type] = handler;\n  }\n}\n\nfunction removeEvent(element, type, handler) {\n  if (element.removeEventListener) {\n    element.removeEventListener(type, handler, false);\n  } else if (element.detachEvent) {\n    element.detachEvent(\"on\" + type, handler);\n  } else {\n    element[\"on\" + type] = null;\n  }\n}\n\nfunction innerWidth(el) {\n  return getSize(el, \"Width\");\n}\n\nfunction innerHeight(el) {\n  return getSize(el, \"Height\");\n}\n\nfunction getStyles(el) {\n  return (SUPPORT_COMPUTEDSTYLE ? window.getComputedStyle(el) : el.currentStyle) || {};\n}\n\nfunction getSize(el, name) {\n  var size = el[\"client\" + name] || el[\"offset\" + name];\n  return parseFloat(size || getStyles(el)[name.toLowerCase()]) || 0;\n}\n\nvar elements = [];\n\nfunction add(element, prefix) {\n  !elements.length && addEvent(window, \"resize\", resizeAll);\n  element.__PREFIX__ = prefix;\n  elements.push(element);\n  resize(element);\n}\n\nfunction remove(element, prefix) {\n  var index = elements.indexOf(element);\n\n  if (index < 0) {\n    return;\n  }\n\n  var fixed = getAttribute(element, prefix + \"fixed\");\n  delete element.__PREFIX__;\n  element.style[fixed === HEIGHT ? WIDTH : HEIGHT] = \"\";\n  elements.splice(index, 1);\n  !elements.length && removeEvent(window, \"resize\", resizeAll);\n}\n\nfunction resize(element, prefix) {\n  if (prefix === void 0) {\n    prefix = \"data-\";\n  }\n\n  var elementPrefix = element.__PREFIX__;\n\n  if (typeof elementPrefix !== \"string\") {\n    elementPrefix = prefix;\n  }\n\n  var dataWidth = parseInt(getAttribute(element, \"\" + elementPrefix + WIDTH), 10) || 0;\n  var dataHeight = parseInt(getAttribute(element, \"\" + elementPrefix + HEIGHT), 10) || 0;\n  var fixed = getAttribute(element, elementPrefix + \"fixed\");\n\n  if (fixed === HEIGHT) {\n    var size = innerHeight(element) || dataHeight;\n    element.style[WIDTH] = dataWidth / dataHeight * size + \"px\";\n  } else {\n    var size = innerWidth(element) || dataWidth;\n    element.style[HEIGHT] = dataHeight / dataWidth * size + \"px\";\n  }\n}\n\nfunction resizeAll() {\n  elements.forEach(function (element) {\n    resize(element);\n  });\n}\n/**\n * @namespace eg.LazyLoaded\n */\n\n/**\n * This module is used to wait for images or videos to load.\n * @ko 이 모듈은 이미지 또는 비디오 로딩을 대기할 수 있습니다.\n * @memberof eg.LazyLoaded\n * @param -\n * @example\n * ## HTML\n * ```html\n * <div>\n *    <img src=\"./1.jpg\" data-width=\"1280\" data-height=\"853\" style=\"width:100%\"/>\n *    <img src=\"./2.jpg\">\n *    <img src=\"./3.jpg\">\n *    <img src=\"./4.jpg\">\n *    <img src=\"ERR\">\n *    <img src=\"./6.jpg\">\n *    <img src=\"./7.jpg\">\n *    <img src=\"ERR\">\n * </div>\n * ```\n * ## Javascript\n * ```js\n * import {check} from \"@egjs/lazyloaded\";\n *\n * eg.LazyLoaded.check([document.querySelector(\"div\")]).on({\n *   ready: () => console.log(\"ready\"),\n *   finish: () => console.log(\"finish\"),\n *   error: e => console.log(\"error\", e),\n * });\n * ```\n */\n\n\nfunction check(elements, prefix) {\n  if (prefix === void 0) {\n    prefix = \"data-\";\n  }\n\n  var component = new Component();\n  var finishCount = 0;\n  var readyCount = 0;\n\n  function checkReady() {\n    if (--readyCount !== 0) {\n      return;\n    }\n    /**\n     * An event occurs when the size of all images is available.\n     * @ko 모든 이미지의 사이즈를 구할 수 있는 상태가 된 경우 이벤트가 발생한다.\n     * @event eg.LazyLoaded#ready\n     * @example\n     * ```html\n     * <div>\n     *    <img src=\"./1.jpg\" data-width=\"1280\" data-height=\"853\" style=\"width:100%\"/>\n     *    <img src=\"./2.jpg\"/>\n     *    <img src=\"ERR\"/>\n     * </div>\n     * ```\n     * ## Javascript\n     * ```js\n     * import {check} from \"@egjs/lazyloaded\";\n     *\n     * eg.LazyLoaded.check([document.querySelector(\"div\")]).on({\n     *   ready: () => console.log(\"ready\"),\n     * });\n     * ```\n     */\n\n\n    component.trigger(\"ready\");\n  }\n\n  function checkFinish() {\n    if (--finishCount !== 0) {\n      return;\n    }\n    /**\n     * An event occurs when all images have been completed loading.\n     * @ko 모든 이미지가 로딩이 완료된 상태가 된 경우 이벤트가 발생한다.\n     * @event eg.LazyLoaded#finish\n     * @example\n     * ```html\n     * <div>\n     *    <img src=\"./1.jpg\" data-width=\"1280\" data-height=\"853\" style=\"width:100%\"/>\n     *    <img src=\"./2.jpg\"/>\n     *    <img src=\"ERR\"/>\n     * </div>\n     * ```\n     * ## Javascript\n     * ```js\n     * import {check} from \"@egjs/lazyloaded\";\n     *\n     * eg.LazyLoaded.check([document.querySelector(\"div\")]).on({\n     *   finish: () => console.log(\"finish\"),\n     * });\n     * ```\n     */\n\n\n    component.trigger(\"finish\");\n  }\n\n  elements.forEach(function (el, i) {\n    var tagName = el.tagName;\n\n    if (isDataAttribute(el, prefix) && tagName !== \"IMG\") {\n      add(el, prefix);\n      ++finishCount;\n      setTimeout(function () {\n        check(toArray(el.querySelectorAll(\"img\")), prefix).on(\"finish\", function () {\n          remove(el, prefix);\n          checkFinish();\n        });\n      });\n      return;\n    }\n\n    var images = tagName === \"IMG\" ? [el] : toArray(el.querySelectorAll(\"img\"));\n\n    if (!images.length) {\n      return;\n    }\n\n    images.forEach(function (img, j) {\n      if (img.complete && (!IS_IE || IS_IE && img.naturalWidth)) {\n        if (!img.naturalWidth) {\n          setTimeout(function () {\n            component.trigger(\"error\", {\n              itemTarget: el,\n              itemIndex: i,\n              target: img,\n              index: j\n            });\n          });\n        }\n\n        return;\n      }\n\n      if (isDataAttribute(img, prefix)) {\n        add(img, prefix);\n      } else {\n        ++readyCount;\n      }\n\n      ++finishCount;\n\n      function onError() {\n        /**\n         * An event occurs if the image fails to load.\n         * @ko 이미지가 로딩에 실패하면 이벤트가 발생한다.\n         * @event eg.LazyLoaded#error\n         * @param {object} e - The object of data to be sent to an event <ko>이벤트에 전달되는 데이터 객체</ko>\n         * @param {HTMLElement} [e.itemTarget] - The item's element with error images.<ko>오류난 이미지가 있는 아이템의 엘리먼트</ko>\n         * @param {number} [e.itemindex] - The item's index with error images. <ko>오류난 이미지가 있는 아이템의 인덱스</ko>\n         * @param {HTMLElement} [e.target] - Error image element <ko>오류난 이미지 엘리먼트</ko>\n         * @param {number} [e.index] - Error image index <ko>오류난 이미지의 인덱스</ko>\n         * @example\n         * ```html\n         * <div>\n         *    <img src=\"./1.jpg\" data-width=\"1280\" data-height=\"853\" style=\"width:100%\"/>\n         *    <img src=\"./2.jpg\"/>\n         *    <img src=\"ERR\"/>\n         * </div>\n         * ```\n         * ## Javascript\n         * ```js\n         * import {check} from \"@egjs/lazyloaded\";\n         *\n         * eg.LazyLoaded.check([document.querySelector(\"div\")]).on({\n         *   error: e => {\n         *     // <div>...</div>, 0, <img src=\"ERR\"/>, 2\n         *     console.log(e.itemTarget, e.itemIndex, e.target, e.index),\n         *   },\n         * });\n         * ```\n         */\n        component.trigger(\"error\", {\n          itemTarget: el,\n          itemIndex: i,\n          target: img,\n          index: j\n        });\n      }\n\n      function onCheck(e) {\n        var target = e.target || e.srcElement;\n        removeEvent(target, \"error\", onCheck);\n        removeEvent(target, \"load\", onCheck);\n\n        if (isDataAttribute(target, prefix)) {\n          remove(target, prefix);\n        } else {\n          checkReady();\n        }\n\n        if (e.type === \"error\") {\n          onError();\n        }\n\n        checkFinish();\n      }\n\n      addEvent(img, \"load\", onCheck);\n      addEvent(img, \"error\", onCheck);\n      IS_IE && img.setAttribute(\"src\", img.getAttribute(\"src\"));\n    });\n  });\n  !readyCount && setTimeout(function () {\n    component.trigger(\"ready\");\n  });\n  !finishCount && setTimeout(function () {\n    component.trigger(\"finish\");\n  });\n  return component;\n}\n\nexport { check, remove as removeAutoSizer };","function _typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\n/*\nCopyright (c) 2015 NAVER Corp.\nname: @egjs/infinitegrid\nlicense: MIT\nauthor: NAVER Corp.\nrepository: https://github.com/naver/egjs-infinitegrid\nversion: 3.6.3\n*/\nimport Component from '@egjs/component';\nimport { diff } from '@egjs/list-differ';\nimport { check, removeAutoSizer } from '@egjs/lazyloaded';\n/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation. All rights reserved.\r\nLicensed under the Apache License, Version 2.0 (the \"License\"); you may not use\r\nthis file except in compliance with the License. You may obtain a copy of the\r\nLicense at http://www.apache.org/licenses/LICENSE-2.0\r\n\r\nTHIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\r\nKIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED\r\nWARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,\r\nMERCHANTABLITY OR NON-INFRINGEMENT.\r\n\r\nSee the Apache Version 2.0 License for specific language governing permissions\r\nand limitations under the License.\r\n***************************************************************************** */\n\n/* global Reflect, Promise */\n\nvar _extendStatics = function extendStatics(d, b) {\n  _extendStatics = Object.setPrototypeOf || {\n    __proto__: []\n  } instanceof Array && function (d, b) {\n    d.__proto__ = b;\n  } || function (d, b) {\n    for (var p in b) {\n      if (b.hasOwnProperty(p)) d[p] = b[p];\n    }\n  };\n\n  return _extendStatics(d, b);\n};\n\nfunction __extends(d, b) {\n  _extendStatics(d, b);\n\n  function __() {\n    this.constructor = d;\n  }\n\n  d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n}\n\nvar _assign = function __assign() {\n  _assign = Object.assign || function __assign(t) {\n    for (var s, i = 1, n = arguments.length; i < n; i++) {\n      s = arguments[i];\n\n      for (var p in s) {\n        if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\n      }\n    }\n\n    return t;\n  };\n\n  return _assign.apply(this, arguments);\n};\n\nvar win;\n\nif (typeof window === \"undefined\") {\n  // window is undefined in node.js\n  win = {\n    document: {},\n    navigator: {\n      userAgent: \"\"\n    }\n  };\n} else {\n  win = window;\n}\n\nvar document = win.document;\n\nvar _a;\n\nvar ua = win.navigator.userAgent;\nvar SUPPORT_COMPUTEDSTYLE = !!(\"getComputedStyle\" in win);\nvar SUPPORT_ADDEVENTLISTENER = !!(\"addEventListener\" in document);\n\nvar SUPPORT_PASSIVE = function () {\n  var supportsPassiveOption = false;\n\n  try {\n    if (SUPPORT_ADDEVENTLISTENER && Object.defineProperty) {\n      // tslint:disable-next-line: no-empty\n      document.addEventListener(\"test\", function () {}, Object.defineProperty({}, \"passive\", {\n        get: function get() {\n          supportsPassiveOption = true;\n        }\n      }));\n    }\n  } catch (e) {//\n  }\n\n  return supportsPassiveOption;\n}();\n\nvar IS_IE = /MSIE|Trident|Windows Phone|Edge/.test(ua);\nvar IS_IOS = /iPhone|iPad/.test(ua);\nvar IS_ANDROID2 = /Android 2\\./.test(ua);\nvar CONTAINER_CLASSNAME = \"_eg-infinitegrid-container_\";\nvar IGNORE_CLASSNAME = \"_eg-infinitegrid-ignore_\";\nvar TRANSITION_NAME = \"_INFINITEGRID_TRANSITION\";\nvar VERTICAL = \"vertical\";\nvar HORIZONTAL = \"horizontal\";\nvar DUMMY_POSITION = -100000;\nvar GROUPKEY_ATT = \"data-groupkey\";\nvar DEFAULT_OPTIONS = {\n  itemSelector: \"*\",\n  isOverflowScroll: false,\n  threshold: 100,\n  isEqualSize: false,\n  isConstantSize: false,\n  useRecycle: true,\n  horizontal: false,\n  transitionDuration: 0,\n  useFit: true,\n  attributePrefix: \"data-\",\n  renderExternal: false\n};\nvar DEFAULT_LAYOUT_OPTIONS = {\n  horizontal: false,\n  margin: 0\n};\nvar agent = ua.toLowerCase();\nvar isMobile = /mobi|ios|android/.test(agent);\nvar ALIGN = {\n  START: \"start\",\n  CENTER: \"center\",\n  END: \"end\",\n  JUSTIFY: \"justify\"\n};\nvar IDLE = 0;\nvar LOADING_APPEND = 1;\nvar LOADING_PREPEND = 2;\nvar PROCESSING = 4;\nvar webkit = /applewebkit\\/([\\d|.]*)/g.exec(agent);\nvar WEBKIT_VERSION = webkit && parseInt(webkit[1], 10) || 0;\nvar DEFENSE_BROWSER = WEBKIT_VERSION && WEBKIT_VERSION < 537;\nvar ITEM_KEYS = [\"content\", \"groupKey\", \"itemKey\", \"orgSize\", \"mounted\", \"prevRect\", \"rect\", \"size\"];\nvar TRANSFORM = (_a = function () {\n  var properties = {\n    transitionend: \"\",\n    webkitTransitionEnd: \"-webkit-\",\n    MSTransitionEnd: \"-ms-\",\n    oTransitionEnd: \"-o-\",\n    mozTransitionEnd: \"-moz-\"\n  };\n\n  for (var property in properties) {\n    var prefix = properties[property];\n\n    if (\"on\" + property.toLowerCase() in win) {\n      return [prefix + \"transform\", prefix + \"transition\", property];\n    }\n  }\n\n  return [];\n}(), _a[0]),\n    TRANSITION = _a[1],\n    TRANSITION_END = _a[2];\nvar INFINITEGRID_EVENTS = [\"append\", \"prepend\", \"imageError\", \"change\", \"layoutComplete\"]; // It's for making mistakes.\n// Whenever you add a public method, you must add the corresponding method name to an array or object.\n// An additional error may occur if not added.\n\nvar INFINITEGRID_METHODS = {\n  getLoadingBar: true,\n  getItem: true,\n  getItems: true,\n  layout: true,\n  getGroupKeys: true,\n  getStatus: true,\n  setStatus: true,\n  isProcessing: true,\n  startLoading: true,\n  endLoading: true,\n  isLoading: true,\n  updateItem: true,\n  updateItems: true,\n  moveTo: true\n};\n\nfunction toArray(nodes) {\n  // SCRIPT5014 in IE8\n  var array = [];\n\n  if (nodes) {\n    var length = nodes.length;\n\n    for (var i = 0; i < length; i++) {\n      array.push(nodes[i]);\n    }\n  }\n\n  return array;\n}\n\nfunction matchHTML(html) {\n  return html.match(/^<([A-z]+)\\s*([^>]*)>/);\n}\n\nfunction $(param, multi) {\n  if (multi === void 0) {\n    multi = false;\n  }\n\n  var el;\n\n  if (typeof param === \"string\") {\n    // String (HTML, Selector)\n    // check if string is HTML tag format\n    var match = matchHTML(param); // creating element\n\n    if (match) {\n      // HTML\n      var dummy = document.createElement(\"div\");\n      dummy.innerHTML = param;\n      el = dummy.childNodes;\n    } else {\n      // Selector\n      el = document.querySelectorAll(param);\n    }\n\n    if (multi) {\n      return toArray(el);\n    } else {\n      return el && el[0];\n    }\n  } else if (isWindow(param)) {\n    // window\n    el = param;\n  } else if (isJQuery(param)) {\n    // jQuery\n    el = multi ? $(param.toArray(), true) : $(param.get(0), false);\n  } else if (Array.isArray(param)) {\n    el = param.map(function (v) {\n      return $(v);\n    });\n\n    if (!multi) {\n      el = el.length >= 1 ? el[0] : undefined;\n    }\n  } else if (param.nodeName && (param.nodeType === 1 || param.nodeType === 9)) {\n    // HTMLElement, Document\n    el = param;\n  } else {\n    el = [].slice.call(el);\n  }\n\n  return el;\n}\n\nfunction addEvent(element, type, handler, eventListenerOptions) {\n  if (SUPPORT_ADDEVENTLISTENER) {\n    var options = eventListenerOptions || false;\n\n    if (_typeof(eventListenerOptions) === \"object\") {\n      options = SUPPORT_PASSIVE ? eventListenerOptions : false;\n    }\n\n    element.addEventListener(type, handler, options);\n  } else if (element.attachEvent) {\n    element.attachEvent(\"on\" + type, handler);\n  } else {\n    element[\"on\" + type] = handler;\n  }\n}\n\nfunction removeEvent(element, type, handler) {\n  if (element.removeEventListener) {\n    element.removeEventListener(type, handler, false);\n  } else if (element.detachEvent) {\n    element.detachEvent(\"on\" + type, handler);\n  } else {\n    element[\"on\" + type] = null;\n  }\n}\n\nfunction addOnceEvent(element, type, handler, eventListenerOptions) {\n  var callback = function callback(e) {\n    removeEvent(element, type, callback);\n    handler(e);\n  };\n\n  addEvent(element, type, callback, eventListenerOptions);\n}\n\nfunction scroll(el, horizontal) {\n  if (horizontal === void 0) {\n    horizontal = false;\n  }\n\n  var prop = \"scroll\" + (horizontal ? \"Left\" : \"Top\");\n\n  if (isWindow(el)) {\n    return win[horizontal ? \"pageXOffset\" : \"pageYOffset\"] || document.body[prop] || document.documentElement[prop];\n  } else {\n    return el[prop];\n  }\n}\n\nfunction scrollTo(el, x, y) {\n  if (isWindow(el)) {\n    el.scroll(x, y);\n  } else {\n    el.scrollLeft = x;\n    el.scrollTop = y;\n  }\n}\n\nfunction scrollBy(el, x, y) {\n  if (isWindow(el)) {\n    el.scrollBy(x, y);\n  } else {\n    el.scrollLeft += x;\n    el.scrollTop += y;\n  }\n}\n\nfunction getStyles(el) {\n  return (SUPPORT_COMPUTEDSTYLE ? win.getComputedStyle(el) : el.currentStyle) || {};\n}\n\nfunction _getSize(el, name, isOffset) {\n  if (isWindow(el)) {\n    // WINDOW\n    return win[\"inner\" + name] || document.body[\"client\" + name];\n  } else if (isDocument(el)) {\n    // DOCUMENT_NODE\n    var doc = el.documentElement;\n    var body = el.body;\n    return Math.max(body[\"scroll\" + name], doc[\"scroll\" + name], body[\"offset\" + name], doc[\"offset\" + name], doc[\"client\" + name]);\n  } else {\n    // NODE\n    var size = 0;\n\n    if (isOffset) {\n      var clientRect = el.getBoundingClientRect();\n      size = name === \"Width\" ? clientRect.right - clientRect.left : clientRect.bottom - clientRect.top;\n    } else {\n      size = el[\"client\" + name] || el[\"offset\" + name];\n    }\n\n    if (size) {\n      return size;\n    }\n\n    var cssSize = getStyles(el)[name.toLowerCase()];\n    return ~cssSize.indexOf(\"px\") && parseFloat(cssSize) || 0;\n  }\n}\n\nfunction innerWidth(el) {\n  return _getSize(el, \"Width\", false);\n}\n\nfunction innerHeight(el) {\n  return _getSize(el, \"Height\", false);\n}\n\nfunction outerWidth(el) {\n  return _getSize(el, \"Width\", true);\n}\n\nfunction outerHeight(el) {\n  return _getSize(el, \"Height\", true);\n}\n\nfunction getSize(el) {\n  return {\n    width: outerWidth(el),\n    height: outerHeight(el)\n  };\n}\n\nvar STYLE = {\n  vertical: {\n    startPos1: \"top\",\n    endPos1: \"bottom\",\n    size1: \"height\",\n    startPos2: \"left\",\n    endPos2: \"right\",\n    size2: \"width\"\n  },\n  horizontal: {\n    startPos1: \"left\",\n    endPos1: \"right\",\n    size1: \"width\",\n    startPos2: \"top\",\n    endPos2: \"bottom\",\n    size2: \"height\"\n  }\n};\n\nfunction getStyleNames(isHorizontal) {\n  return STYLE[isHorizontal ? HORIZONTAL : VERTICAL];\n}\n\nfunction assign(target) {\n  var sources = [];\n\n  for (var _i = 1; _i < arguments.length; _i++) {\n    sources[_i - 1] = arguments[_i];\n  }\n\n  sources.forEach(function (source) {\n    for (var key in source) {\n      target[key] = source[key];\n    }\n  });\n  return target;\n}\n\nfunction assignOptions(defaultOptions, options) {\n  return assign({}, DEFAULT_LAYOUT_OPTIONS, defaultOptions, options);\n}\n\nfunction toZeroArray(outline) {\n  if (!outline || !outline.length) {\n    return [0];\n  }\n\n  return outline;\n}\n\nfunction cloneItems(items) {\n  return items.map(function (item) {\n    return assign({}, item);\n  });\n}\n\nfunction isJQuery(el) {\n  return typeof win.jQuery === \"function\" && el instanceof win.jQuery || el.constructor.prototype.jquery && el.toArray;\n}\n\nfunction isWindow(el) {\n  return el === win;\n}\n\nfunction isDocument(el) {\n  return el.nodeType === 9;\n}\n\nfunction fill(arr, value) {\n  var length = arr.length;\n\n  for (var i = length - 1; i >= 0; --i) {\n    arr[i] = value;\n  }\n\n  return arr;\n}\n\nfunction isUndefined(target) {\n  return typeof target === \"undefined\";\n}\n\nfunction find(arr, callback) {\n  var length = arr.length;\n\n  for (var i = 0; i < length; ++i) {\n    if (callback(arr[i])) {\n      return arr[i];\n    }\n  }\n\n  return null;\n}\n\nfunction findLast(arr, callback) {\n  var length = arr.length;\n\n  for (var i = length - 1; i >= 0; --i) {\n    if (callback(arr[i])) {\n      return arr[i];\n    }\n  }\n\n  return null;\n}\n\nfunction categorize(newItems) {\n  var newGroups = [];\n  var groupKeys = {};\n  newItems.forEach(function (item) {\n    var groupKey = item.groupKey;\n    var group = groupKeys[groupKey];\n\n    if (!group) {\n      group = {\n        groupKey: groupKey,\n        items: []\n      };\n      groupKeys[groupKey] = group;\n      newGroups.push(group);\n    }\n\n    group.items.push(item);\n  });\n  return newGroups;\n}\n\nfunction resetSize(item) {\n  item.orgSize = null;\n  item.size = null;\n}\n\nfunction makeItem(groupKey, el) {\n  return {\n    el: el,\n    groupKey: groupKey,\n    mounted: false,\n    content: el ? el.outerHTML : \"\",\n    rect: {\n      top: DUMMY_POSITION,\n      left: DUMMY_POSITION\n    }\n  };\n}\n/**\n * Decorator that makes the method of infinitegrid available in the framework.\n * @ko 프레임워크에서 인피니트그리드의 메소드를 사용할 수 있게 하는 데코레이터.\n * @memberof eg.InfiniteGrid\n * @private\n * @example\n * ```js\n * import NativeInfiniteGrid, { withInfiniteGridMethods } from \"@egjs/infinitegrid\";\n *\n * class InfiniteGrid extends React.Component<Partial<InfiniteGridProps & InfiniteGridOptions>> {\n *   &#64;withInfiniteGridMethods\n *   private infinitegrid: NativeInfiniteGrid;\n * }\n * ```\n */\n\n\nfunction withInfiniteGridMethods(prototype, infinitegridName) {\n  Object.keys(INFINITEGRID_METHODS).forEach(function (name) {\n    if (prototype[name]) {\n      return;\n    }\n\n    prototype[name] = function () {\n      var args = [];\n\n      for (var _i = 0; _i < arguments.length; _i++) {\n        args[_i] = arguments[_i];\n      }\n\n      var _a;\n\n      var result = (_a = this[infinitegridName])[name].apply(_a, args); // fix `this` type to return your own `infinitegrid` instance to the instance using the decorator.\n\n\n      if (result === this[infinitegridName]) {\n        return this;\n      } else {\n        return result;\n      }\n    };\n  });\n}\n\nfunction hasClass(element, className) {\n  if (element.classList) {\n    return element.classList.contains(className);\n  }\n\n  return !!element.className.match(new RegExp(\"(\\\\s|^)\" + className + \"(\\\\s|$)\"));\n}\n\nfunction addClass(element, className) {\n  if (element.classList) {\n    element.classList.add(className);\n  } else {\n    element.className += \" \" + className;\n  }\n}\n\nvar ItemManager = /*#__PURE__*/function () {\n  function ItemManager() {\n    // groups\n    this._groups = []; // group keys\n\n    this._groupKeys = {};\n  }\n\n  var __proto = ItemManager.prototype;\n\n  ItemManager.toItems = function (elements, groupKey) {\n    return elements.map(function (el) {\n      return makeItem(groupKey, el);\n    });\n  };\n\n  ItemManager.pluck = function (data, property) {\n    return data.reduce(function (acc, v) {\n      return acc.concat(v[property]);\n    }, []);\n  };\n\n  __proto.clear = function () {\n    this._groups = [];\n    this._groupKeys = {};\n  };\n\n  __proto.getStatus = function (startKey, endKey) {\n    var datas = this._groups;\n    var startIndex = Math.max(this.indexOf(startKey), 0);\n    var endIndex = this.indexOf(endKey) + 1 || datas.length;\n    return {\n      _data: datas.slice(startIndex, endIndex).map(function (data) {\n        var items = data.items.map(function (item) {\n          var item2 = {};\n          ITEM_KEYS.forEach(function (key) {\n            if (key in item) {\n              item2[key] = item[key];\n            }\n          });\n          return item2;\n        });\n        var data2 = assign({}, data);\n        data2.items = items;\n        return data2;\n      })\n    };\n  };\n\n  __proto.setStatus = function (status) {\n    var _this = this;\n\n    var data = status._data;\n    this.clear();\n    data.forEach(function (group, i) {\n      _this.insertGroup(group, i);\n    });\n  };\n\n  __proto.size = function () {\n    return this._groups.length;\n  };\n\n  __proto.fit = function (base, horizontal) {\n    var groups = this._groups;\n\n    if (!groups.length) {\n      return;\n    }\n\n    var property = horizontal ? \"left\" : \"top\";\n\n    if (base !== 0) {\n      groups.forEach(function (group) {\n        var items = group.items,\n            outlines = group.outlines;\n        items.forEach(function (item) {\n          item.rect[property] -= base;\n        });\n        outlines.start = outlines.start.map(function (start) {\n          return start - base;\n        });\n        outlines.end = outlines.end.map(function (end) {\n          return end - base;\n        });\n      });\n    }\n  };\n\n  __proto.pluck = function (property, start, end) {\n    var data = isUndefined(start) ? this._groups : this.sliceGroups(start, (isUndefined(end) ? start : end) + 1);\n    return ItemManager.pluck(data, property);\n  };\n\n  __proto.getOutline = function (index, property) {\n    var data = this._groups[index];\n    return data ? data.outlines[property] : [];\n  };\n\n  __proto.getEdgeIndex = function (cursor, start, end) {\n    var prop = cursor === \"start\" ? \"min\" : \"max\";\n    var index = -1;\n    var targetValue = cursor === \"start\" ? Infinity : -Infinity;\n\n    for (var i = start; i <= end; i++) {\n      var value = Math[prop].apply(Math, this.getOutline(i, cursor));\n\n      if (cursor === \"start\" && targetValue > value || cursor === \"end\" && targetValue < value) {\n        targetValue = value;\n        index = i;\n      }\n    }\n\n    return index;\n  };\n\n  __proto.getEdgeValue = function (cursor, start, end) {\n    var group = this.getGroup(this.getEdgeIndex(cursor, start, end));\n\n    if (group) {\n      var outlines = group.outlines[cursor];\n\n      if (outlines.length) {\n        return Math[cursor === \"start\" ? \"min\" : \"max\"].apply(Math, outlines);\n      }\n    }\n\n    return 0;\n  };\n\n  __proto.clearOutlines = function (startCursor, endCursor) {\n    if (startCursor === void 0) {\n      startCursor = -1;\n    }\n\n    if (endCursor === void 0) {\n      endCursor = -1;\n    }\n\n    var datas = this.getGroups();\n    datas.forEach(function (group, cursor) {\n      if (startCursor <= cursor && cursor <= endCursor) {\n        return;\n      }\n\n      group.items.forEach(function (item) {\n        item.rect.top = DUMMY_POSITION;\n        item.rect.left = DUMMY_POSITION;\n      });\n      group.outlines.start = [];\n      group.outlines.end = [];\n    });\n  };\n\n  __proto.getMaxEdgeValue = function () {\n    var groups = this._groups;\n    var length = groups.length;\n\n    for (var i = length - 1; i >= 0; --i) {\n      var end = groups[i].outlines.end;\n\n      if (end.length) {\n        var pos = Math.max.apply(Math, end);\n        return pos;\n      }\n    }\n\n    return 0;\n  };\n\n  __proto.prependGroup = function (group) {\n    return this.insertGroup(group, 0);\n  };\n\n  __proto.appendGroup = function (group) {\n    return this.insertGroup(group, this._groups.length);\n  };\n\n  __proto.insertGroup = function (group, groupIndex) {\n    var _this = this;\n\n    if (groupIndex < 0) {\n      return null;\n    }\n\n    var prevItems = group.items || [];\n\n    var newGroup = _assign({\n      outlines: {\n        start: [],\n        end: []\n      }\n    }, group, {\n      items: []\n    });\n\n    this._groups.splice(groupIndex, 0, newGroup);\n\n    this._groupKeys[newGroup.groupKey] = newGroup;\n    prevItems.forEach(function (item, i) {\n      _this.insert(item, groupIndex, i);\n    });\n    return newGroup;\n  };\n\n  __proto.sync = function (items) {\n    var _this = this;\n\n    var groups = this._groups;\n    var groupKeys = this._groupKeys;\n    var newGroups = categorize(items);\n    var result = diff(groups, newGroups, function (group) {\n      return group.groupKey;\n    });\n    var removed = result.removed,\n        added = result.added,\n        maintained = result.maintained;\n    removed.forEach(function (removedIndex) {\n      var group = groups[removedIndex];\n\n      if (!group) {\n        return;\n      }\n\n      delete groupKeys[group.groupKey];\n    });\n    var nextGroups = [];\n    maintained.forEach(function (_a) {\n      var fromIndex = _a[0];\n      nextGroups.push(groups[fromIndex]);\n    });\n    this._groups = nextGroups;\n    added.forEach(function (addedIndex) {\n      _this.insertGroup(newGroups[addedIndex], addedIndex);\n    });\n    maintained.reverse().forEach(function (_a) {\n      var toIndex = _a[1];\n\n      _this.syncItems(toIndex, newGroups[toIndex].items);\n    });\n    return result;\n  };\n\n  __proto.insert = function (newItem, groupIndex, itemIndex) {\n    if (groupIndex === void 0) {\n      groupIndex = -1;\n    }\n\n    if (itemIndex === void 0) {\n      itemIndex = -1;\n    }\n\n    var groupKey = newItem.groupKey;\n    var groups = this._groups;\n    var groupKeys = this._groupKeys;\n    var group = (groupIndex > -1 ? groups[groupIndex] : groupKeys[groupKey]) || this.insertGroup({\n      groupKey: groupKey\n    }, groupIndex);\n\n    if (!group) {\n      return null;\n    }\n\n    var groupItem = _assign({\n      content: \"\",\n      mounted: false,\n      rect: {\n        top: DUMMY_POSITION,\n        left: DUMMY_POSITION\n      }\n    }, newItem);\n\n    var groupItems = group.items;\n\n    if (itemIndex === -1) {\n      groupItems.push(groupItem);\n    } else {\n      groupItems.splice(itemIndex, 0, groupItem);\n    }\n\n    return groupItem;\n  };\n\n  __proto.removeGroup = function (groupIndex) {\n    var group = this._groups.splice(groupIndex, 1)[0];\n\n    if (!group) {\n      return null;\n    }\n\n    delete this._groupKeys[group.groupKey];\n    return group;\n  };\n\n  __proto.remove = function (groupIndex, itemIndex) {\n    var data = this.getGroup(groupIndex);\n    var group = null;\n    var items = [];\n\n    if (!data) {\n      return {\n        items: items,\n        group: group\n      };\n    } // remove item information\n\n\n    items = data.items.splice(itemIndex, 1);\n\n    if (!data.items.length) {\n      group = this.removeGroup(groupIndex);\n    }\n\n    return {\n      items: items,\n      group: group\n    };\n  };\n\n  __proto.indexOf = function (data) {\n    if (typeof data === \"undefined\") {\n      return -1;\n    }\n\n    var groupKey = \"\" + (_typeof(data) === \"object\" ? data.groupKey : data);\n    var datas = this._groups;\n    var length = datas.length;\n\n    for (var i = 0; i < length; ++i) {\n      if (groupKey === \"\" + datas[i].groupKey) {\n        return i;\n      }\n    }\n\n    return -1;\n  };\n\n  __proto.indexesOfElement = function (element) {\n    var groupKey = element.getAttribute(GROUPKEY_ATT);\n    var groupIndex = this.indexOf({\n      groupKey: groupKey\n    });\n    var itemIndex = -1;\n\n    if (groupIndex > -1) {\n      var data = this.getGroup(groupIndex);\n      var length = data.items.length;\n\n      for (var i = 0; i < length; i++) {\n        if (data.items[i].el === element) {\n          itemIndex = i;\n          break;\n        }\n      }\n    }\n\n    return {\n      groupIndex: groupIndex,\n      itemIndex: itemIndex\n    };\n  };\n\n  __proto.sliceGroups = function (start, end) {\n    return this._groups.slice(start, end);\n  };\n\n  __proto.getGroups = function () {\n    return this._groups;\n  };\n\n  __proto.getGroupByKey = function (key) {\n    return this._groupKeys[key];\n  };\n\n  __proto.getGroup = function (index) {\n    return this._groups[index];\n  };\n\n  __proto.syncItems = function (groupIndex, newItems) {\n    var _this = this;\n\n    if (!newItems.length) {\n      this.removeGroup(groupIndex);\n      return;\n    }\n\n    var items = this.getGroup(groupIndex).items;\n\n    var _a = diff(items, newItems, function (item) {\n      return item.itemKey;\n    }),\n        added = _a.added,\n        maintained = _a.maintained;\n\n    var group = this._groups[groupIndex];\n    var nextItems = [];\n    maintained.forEach(function (_a) {\n      var fromIndex = _a[0],\n          nextIndex = _a[1];\n      var item = items[fromIndex];\n      var newItem = newItems[nextIndex];\n      assign(item, newItem);\n      nextItems.push(item);\n    });\n    group.items = nextItems;\n    added.forEach(function (addedIndex) {\n      _this.insert(newItems[addedIndex], groupIndex, addedIndex);\n    });\n  };\n\n  return ItemManager;\n}();\n\nfunction removeTransition(styles) {\n  styles[TRANSITION + \"-property\"] = \"\";\n  styles[TRANSITION + \"-duration\"] = \"\";\n  styles[TRANSFORM] = \"\";\n}\n\nfunction setTransition(styles, transitionDuration, pos1, pos2) {\n  if (!transitionDuration) {\n    removeTransition(styles);\n    return false;\n  }\n\n  if (pos1.left === pos2.left && pos1.top === pos2.top) {\n    return false;\n  }\n\n  styles[TRANSITION + \"-property\"] = TRANSFORM + \",width,height\";\n  styles[TRANSITION + \"-duration\"] = transitionDuration + \"s\";\n  styles[TRANSFORM] = \"translate(\" + (pos1.left - pos2.left) + \"px,\" + (pos1.top - pos2.top) + \"px)\";\n  return true;\n}\n\nfunction createContainer(element) {\n  var selectContainer = element.querySelector(\".\" + CONTAINER_CLASSNAME);\n\n  if (selectContainer) {\n    selectContainer.style.position = \"relative\";\n    selectContainer.style.height = \"100%\";\n    return selectContainer;\n  }\n\n  var container = document.createElement(\"div\");\n  container.className = CONTAINER_CLASSNAME;\n  container.style.position = \"relative\";\n  container.style.height = \"100%\";\n  var children = element.children;\n  var length = children.length; // for IE8\n\n  for (var i = 0; i < length; i++) {\n    container.appendChild(children[0]);\n  }\n\n  element.appendChild(container);\n  return container;\n}\n\nfunction render(properties, rect, styles) {\n  properties.forEach(function (p) {\n    p in rect && (styles[p] = rect[p] + \"px\");\n  });\n}\n\nvar DOMRenderer = /*#__PURE__*/function () {\n  function DOMRenderer(element, options) {\n    this.options = {\n      isEqualSize: false,\n      isConstantSize: false,\n      horizontal: false,\n      container: false\n    };\n    this._size = {\n      container: -1,\n      view: -1,\n      viewport: -1,\n      item: null\n    };\n    this._orgStyle = {};\n    assign(this.options, options);\n\n    this._init(element);\n\n    this.resize();\n  }\n\n  var __proto = DOMRenderer.prototype;\n\n  DOMRenderer.renderItem = function (item, rect, transitionDuration) {\n    if (!item.el) {\n      return;\n    }\n\n    var el = item.el,\n        prevRect = item.prevRect;\n    var styles = el.style; // for debugging\n\n    el.setAttribute(GROUPKEY_ATT, \"\" + item.groupKey);\n    styles.position = \"absolute\";\n    render([\"width\", \"height\"], rect, styles);\n\n    if (transitionDuration && TRANSITION && prevRect) {\n      setTransition(styles, transitionDuration, rect, prevRect);\n\n      if (el[TRANSITION_NAME]) {\n        return;\n      }\n\n      el[TRANSITION_NAME] = true;\n      addOnceEvent(el, TRANSITION_END, function () {\n        var itemRect = item.rect;\n        removeTransition(styles);\n        render([\"left\", \"top\"], itemRect, styles);\n        item.prevRect = itemRect;\n        el[TRANSITION_NAME] = false;\n      });\n    } else {\n      render([\"left\", \"top\"], rect, styles);\n      item.prevRect = rect;\n    }\n  };\n\n  DOMRenderer.renderItems = function (items, transitionDuration) {\n    items.forEach(function (item) {\n      DOMRenderer.renderItem(item, item.rect, transitionDuration);\n    });\n  };\n\n  DOMRenderer.removeItems = function (items) {\n    items.forEach(function (item) {\n      if (item.el) {\n        DOMRenderer.removeElement(item.el);\n        item.el = null;\n      }\n    });\n  };\n\n  DOMRenderer.removeElement = function (element) {\n    var parentNode = element && element.parentNode;\n\n    if (!parentNode) {\n      return;\n    }\n\n    parentNode.removeChild(element);\n  };\n\n  DOMRenderer.createElements = function (items) {\n    if (!items.length) {\n      return;\n    }\n\n    var noElementItems = items.filter(function (item) {\n      return !item.el;\n    });\n\n    if (!noElementItems.length) {\n      return;\n    }\n\n    var elements = $(noElementItems.map(function (_a) {\n      var content = _a.content;\n      return content.replace(/^[\\s\\uFEFF]+|[\\s\\uFEFF]+$/g, \"\");\n    }).join(\"\"), true);\n    noElementItems.forEach(function (item, index) {\n      item.el = elements[index];\n    });\n  };\n\n  __proto.getStatus = function () {\n    return {\n      cssText: this.container.style.cssText,\n      _size: assign({}, this._size)\n    };\n  };\n\n  __proto.setStatus = function (status) {\n    this.container.style.cssText = status.cssText;\n    assign(this._size, status._size);\n  };\n\n  __proto.updateSize = function (items) {\n    var _a = this.options,\n        isEqualSize = _a.isEqualSize,\n        isConstantSize = _a.isConstantSize;\n    var size = this._size;\n    return items.map(function (item) {\n      if (!item.el) {\n        return item;\n      }\n\n      if (isEqualSize && !size.item) {\n        size.item = getSize(item.el);\n      }\n\n      item.size = isEqualSize && assign({}, size.item) || isConstantSize && item.orgSize && item.orgSize.width && assign({}, item.orgSize) || getSize(item.el);\n\n      if (!item.orgSize || !item.orgSize.width || !item.orgSize.height) {\n        item.orgSize = assign({}, item.size);\n      }\n\n      return item;\n    });\n  };\n\n  __proto.createAndInsert = function (items, isAppend) {\n    DOMRenderer.createElements(items);\n    DOMRenderer.renderItems(items);\n\n    this._insert(items, isAppend);\n  };\n\n  __proto.getViewSize = function () {\n    return this._size.view;\n  };\n\n  __proto.getViewportSize = function () {\n    return this._size.viewport;\n  };\n\n  __proto.getContainerSize = function () {\n    return this._size.container;\n  };\n\n  __proto.setContainerSize = function (size) {\n    this._size.container = size;\n    this.container.style[this.options.horizontal ? \"width\" : \"height\"] = size + \"px\";\n  };\n\n  __proto.resize = function () {\n    var horizontal = this.options.horizontal;\n    var view = this.view;\n\n    var size = this._calcSize();\n\n    if (size === 0) {\n      return;\n    }\n\n    var isResize = size !== this._size.viewport;\n\n    if (isResize) {\n      this._size = {\n        view: -1,\n        container: -1,\n        viewport: size,\n        item: null\n      };\n    }\n\n    this._size.view = horizontal ? innerWidth(view) : innerHeight(view);\n    return isResize;\n  };\n\n  __proto.isNeededResize = function () {\n    return this._calcSize() !== this._size.viewport;\n  };\n\n  __proto.clear = function () {\n    this.container.innerHTML = \"\";\n    this.container.style[this.options.horizontal ? \"width\" : \"height\"] = \"\";\n    this._size = {\n      item: null,\n      viewport: -1,\n      container: -1,\n      view: -1\n    };\n  };\n\n  __proto.destroy = function () {\n    this.clear();\n    var container = this.options.container;\n    var property;\n\n    for (property in this._orgStyle) {\n      this[container ? \"view\" : \"container\"].style[property] = this._orgStyle[property];\n    }\n\n    container && this.container.parentNode.removeChild(this.container);\n  };\n\n  __proto._init = function (el) {\n    var element = $(el);\n    var style = getStyles(element);\n    var _a = this.options,\n        container = _a.container,\n        horizontal = _a.horizontal;\n\n    if (style.position === \"static\") {\n      this._orgStyle.position = element.style.position;\n      element.style.position = \"relative\";\n    }\n\n    if (container) {\n      var target = horizontal ? [\"X\", \"Y\"] : [\"Y\", \"X\"];\n      this._orgStyle.overflowX = element.style.overflowX;\n      this._orgStyle.overflowY = element.style.overflowY;\n      element.style[\"overflow\" + target[0]] = \"scroll\";\n      element.style[\"overflow\" + target[1]] = \"hidden\";\n      this.view = element;\n      this.container = container === true ? createContainer(this.view) : container;\n    } else {\n      this.view = win;\n      this.container = element;\n    }\n  };\n\n  __proto._insert = function (items, isAppend, styles) {\n    var container = this.container;\n    var df = document.createDocumentFragment();\n    items.forEach(function (item) {\n      styles && DOMRenderer.renderItem(item, styles);\n      isAppend ? df.appendChild(item.el) : df.insertBefore(item.el, df.firstChild);\n    });\n    isAppend ? container.appendChild(df) : container.insertBefore(df, container.firstChild);\n  };\n\n  __proto._calcSize = function () {\n    return this.options.horizontal ? innerHeight(this.container) : innerWidth(this.container);\n  };\n\n  return DOMRenderer;\n}();\n\nfunction isVisible(group, threshold, scrollPos, endScrollPos) {\n  var items = group.items,\n      outlines = group.outlines;\n  var start = outlines.start;\n  var end = outlines.end;\n\n  if (start.length === 0 || end.length === 0 || !items.length || !items[0].el) {\n    return 2;\n  }\n\n  var min = Math.min.apply(Math, start);\n  var max = Math.max.apply(Math, end);\n\n  if (endScrollPos + threshold < min) {\n    return +1;\n  } else if (scrollPos - threshold > max) {\n    return -1;\n  }\n\n  return 0;\n}\n\nvar Infinite = /*#__PURE__*/function () {\n  function Infinite(itemManger, options) {\n    this.options = assign({\n      useRecycle: true,\n      threshold: 100,\n      append: function append() {\n        return void 0;\n      },\n      prepend: function prepend() {\n        return void 0;\n      },\n      recycle: function recycle() {\n        return void 0;\n      }\n    }, options);\n    this._itemManager = itemManger;\n    this.clear();\n  }\n\n  var __proto = Infinite.prototype;\n\n  __proto.setSize = function (size) {\n    this._status.size = size;\n  };\n\n  __proto.sync = function (items) {\n    var status = this._status;\n    var startCursor = status.startCursor,\n        endCursor = status.endCursor;\n    var itemManager = this._itemManager;\n    var prevVisisbleGroups = itemManager.sliceGroups(startCursor, endCursor + 1);\n    var prevVisibleItems = ItemManager.pluck(prevVisisbleGroups, \"items\");\n    var result = itemManager.sync(items);\n    var startGroup = find(prevVisisbleGroups, function (_a) {\n      var groupKey = _a.groupKey;\n      return itemManager.getGroupByKey(groupKey);\n    });\n    var endGroup = findLast(prevVisisbleGroups, function (_a) {\n      var groupKey = _a.groupKey;\n      return itemManager.getGroupByKey(groupKey);\n    });\n    var nextStartCursor = startGroup ? itemManager.indexOf(startGroup) : -1;\n    var nextEndCursor = endGroup ? itemManager.indexOf(endGroup) : -1;\n\n    if (nextStartCursor > -1 && nextEndCursor > -1) {\n      // This is when the arrangement is inverted.\n      // prevVisisbleGroups is [0, 1, 2, 3]\n      // but currentGroups is [3, 2, 1, 0]\n      // so, nextStartCursor is 3, and nextEndCursor is 0\n      var minCursor = Math.min(nextStartCursor, nextEndCursor);\n      var maxCursor = Math.max(nextStartCursor, nextEndCursor);\n      nextStartCursor = minCursor;\n      nextEndCursor = maxCursor;\n    } else if (nextEndCursor > -1) {\n      nextStartCursor = nextEndCursor;\n    } else if (nextStartCursor > -1) {\n      nextEndCursor = nextStartCursor;\n    }\n\n    status.startCursor = nextStartCursor;\n    status.endCursor = nextEndCursor;\n\n    if (result.removed.length > 0) {\n      return \"relayout\";\n    } else {\n      var nextVisibleItems = itemManager.pluck(\"items\", startCursor, endCursor);\n      var visibleDiffResult = diff(prevVisibleItems, nextVisibleItems, function (_a) {\n        var itemKey = _a.itemKey;\n        return itemKey;\n      });\n\n      if (visibleDiffResult.removed.length > 0) {\n        return \"layout\";\n      } else {\n        return \"\";\n      }\n    }\n  };\n\n  __proto.recycle = function (scrollPos, isForward) {\n    if (!this.options.useRecycle || typeof scrollPos !== \"number\") {\n      return;\n    }\n\n    var _a = this._status,\n        startCursor = _a.startCursor,\n        endCursor = _a.endCursor,\n        size = _a.size;\n\n    if (startCursor === -1 || endCursor === -1) {\n      return;\n    }\n\n    var endScrollPos = scrollPos + size;\n    var _b = this.options,\n        threshold = _b.threshold,\n        recycle = _b.recycle;\n\n    var visibles = this._itemManager.sliceGroups(startCursor, endCursor + 1).map(function (group) {\n      return isVisible(group, threshold, scrollPos, endScrollPos);\n    });\n\n    var length = visibles.length;\n    var start = isForward ? 0 : visibles.lastIndexOf(0);\n    var end = isForward ? visibles.indexOf(0) - 1 : visibles.length - 1;\n\n    if (!isForward && start !== -1) {\n      start += 1;\n    }\n\n    if (start < 0 || end < 0 || start > end || end - start + 1 >= length) {\n      return;\n    }\n\n    start = startCursor + start;\n    end = startCursor + end;\n\n    if (isForward) {\n      this.setCursor(\"start\", end + 1);\n    } else {\n      this.setCursor(\"end\", start - 1);\n    }\n\n    recycle({\n      start: start,\n      end: end\n    });\n  };\n\n  __proto.scroll = function (scrollPos) {\n    var _a = this.getCursors(),\n        startCursor = _a[0],\n        endCursor = _a[1];\n\n    var items = this._itemManager;\n\n    if (typeof scrollPos !== \"number\" || startCursor === -1 || endCursor === -1 || !items.size()) {\n      return;\n    }\n\n    var size = this._status.size;\n    var _b = this.options,\n        threshold = _b.threshold,\n        append = _b.append,\n        prepend = _b.prepend;\n    var datas = items.getGroups();\n    var endScrollPos = scrollPos + size;\n    var startEdgePos = Math.max.apply(Math, datas[startCursor].outlines.start);\n    var endEdgePos = Math.min.apply(Math, datas[endCursor].outlines.end);\n    var visibles = datas.map(function (group, i) {\n      var _a = group.outlines,\n          start = _a.start,\n          end = _a.end;\n\n      if (!start.length || !end.length) {\n        return false;\n      }\n\n      var startPos = Math.min.apply(Math, start);\n      var endPos = Math.max.apply(Math, end);\n\n      if (startPos - threshold <= endScrollPos && scrollPos <= endPos + threshold) {\n        return true;\n      }\n\n      return false;\n    });\n    var startIndex = visibles.indexOf(true);\n    var endIndex = visibles.lastIndexOf(true);\n\n    if (~startIndex && startIndex < startCursor) {\n      prepend({\n        cache: datas.slice(startIndex, Math.min(startCursor, endIndex + 1))\n      });\n    } else if (endCursor < endIndex) {\n      append({\n        cache: datas.slice(Math.max(startIndex, endCursor + 1), endIndex + 1)\n      });\n    } else {\n      // if you have data(no cachedAppendData, has cachedPrependData) to pepend, request it.\n      var cachedAppendData = datas.slice(endCursor + 1, endCursor + 2);\n      var cachedPrependData = datas.slice(startCursor - 1, startCursor);\n      var isPrepend = scrollPos <= startEdgePos + threshold;\n\n      if (endScrollPos >= endEdgePos - threshold && (!isPrepend || cachedAppendData.length || !cachedPrependData.length)) {\n        append({\n          cache: cachedAppendData\n        });\n      } else if (isPrepend) {\n        prepend({\n          cache: cachedPrependData\n        });\n      }\n    }\n  };\n\n  __proto.setCursor = function (cursor, index) {\n    var status = this._status;\n    var items = this._itemManager;\n    var size = items.size();\n\n    if (!this.options.useRecycle) {\n      status.startCursor = 0;\n\n      if (items.getOutline(size - 1, \"end\").length) {\n        status.endCursor = size - 1;\n        return;\n      }\n\n      if (cursor !== \"end\") {\n        return;\n      }\n    }\n\n    if (cursor === \"start\") {\n      status.startCursor = index;\n    } else {\n      status.endCursor = Math.min(size - 1, index);\n    }\n\n    status.startCursor = Math.max(0, status.startCursor);\n  };\n\n  __proto.setStatus = function (status) {\n    this._status = assign(this._status, status);\n  };\n\n  __proto.getStatus = function (startKey, endKey) {\n    var _a = this._status,\n        startCursor = _a.startCursor,\n        endCursor = _a.endCursor,\n        size = _a.size;\n    var startIndex = Math.max(this._itemManager.indexOf(startKey), 0);\n    var endIndex = (this._itemManager.indexOf(endKey) + 1 || this._itemManager.size()) - 1;\n    var start = Math.max(startCursor - startIndex, ~startCursor ? 0 : -1);\n    var end = Math.max(Math.min(endCursor - startIndex, endIndex - startIndex), start);\n    return {\n      startCursor: start,\n      endCursor: end,\n      size: size\n    };\n  };\n\n  __proto.getEdgeOutline = function (cursor) {\n    var _a = this._status,\n        startCursor = _a.startCursor,\n        endCursor = _a.endCursor;\n\n    if (startCursor === -1 || endCursor === -1) {\n      return [];\n    }\n\n    return this._itemManager.getOutline(cursor === \"start\" ? startCursor : endCursor, cursor);\n  };\n\n  __proto.getEdgeValue = function (cursor) {\n    var outlines = this.getEdgeOutline(cursor);\n    return outlines.length ? Math[cursor === \"start\" ? \"min\" : \"max\"].apply(Math, outlines) : 0;\n  };\n\n  __proto.getVisibleItems = function () {\n    var _a = this._status,\n        startCursor = _a.startCursor,\n        endCursor = _a.endCursor;\n    return this._itemManager.pluck(\"items\", startCursor, endCursor);\n  };\n\n  __proto.getCursors = function () {\n    var status = this._status;\n    return [status.startCursor, status.endCursor];\n  };\n\n  __proto.getCursor = function (cursor) {\n    return this._status[cursor === \"start\" ? \"startCursor\" : \"endCursor\"];\n  };\n\n  __proto.getVisibleData = function () {\n    var _a = this._status,\n        startCursor = _a.startCursor,\n        endCursor = _a.endCursor;\n    return this._itemManager.sliceGroups(startCursor, endCursor + 1);\n  };\n\n  __proto.remove = function (groupIndex, itemIndex) {\n    var status = this._status;\n    var items = this._itemManager;\n    var startCursor = status.startCursor,\n        endCursor = status.endCursor;\n    var result = items.remove(groupIndex, itemIndex);\n\n    if (result.group) {\n      if (groupIndex < startCursor) {\n        this.setCursor(\"start\", startCursor - 1);\n      }\n\n      if (groupIndex <= endCursor) {\n        this.setCursor(\"end\", endCursor - 1);\n      }\n    }\n\n    if (!items.size()) {\n      status.startCursor = -1;\n      status.endCursor = -1;\n    }\n\n    return result;\n  };\n\n  __proto.clear = function () {\n    this._status = {\n      startCursor: -1,\n      endCursor: -1,\n      size: -1\n    };\n  };\n\n  return Infinite;\n}();\n\nfunction hasTarget(target, value) {\n  return ~target.indexOf(value);\n}\n\nvar RenderManager = /*#__PURE__*/function () {\n  function RenderManager(_infinite, _itemManager, _renderer, options) {\n    this._infinite = _infinite;\n    this._itemManager = _itemManager;\n    this._renderer = _renderer;\n    this.options = options;\n  }\n\n  var __proto = RenderManager.prototype;\n\n  __proto.setLayout = function (layout) {\n    this._layout = layout;\n  };\n\n  __proto.render = function (callbackComponent, groups, items, isAppend) {\n    var _this = this;\n\n    if (items === void 0) {\n      items = ItemManager.pluck(groups, \"items\");\n    }\n\n    var checkGroups = isAppend ? groups : groups.reverse();\n    var replaceTarget = [];\n    var removeTarget = [];\n    var elements = items.map(function (item) {\n      return item.el;\n    });\n    var prefix = this.options.attributePrefix;\n    check(elements, prefix).on(\"ready\", function () {\n      if (!_this._itemManager) {\n        return;\n      }\n\n      _this._complete(callbackComponent, checkGroups, items, isAppend);\n    }).on(\"error\", function (_a) {\n      var target = _a.target,\n          itemIndex = _a.itemIndex;\n\n      if (!_this._itemManager) {\n        return;\n      }\n\n      _this._error(callbackComponent, removeTarget, replaceTarget, target, items, itemIndex);\n    }).on(\"finish\", function () {\n      if (!_this._itemManager) {\n        return;\n      }\n\n      _this._end(callbackComponent, removeTarget, replaceTarget, items);\n    });\n    return callbackComponent;\n  };\n\n  __proto._complete = function (callbackComponent, groups, items, isAppend) {\n    var infinite = this._infinite;\n    var layout = this._layout;\n    var itemManager = this._itemManager;\n    var cursor = isAppend ? \"end\" : \"start\";\n    var groupIndex = itemManager.indexOf(groups[0]);\n    var prevGroup = itemManager.getGroup(groupIndex + (isAppend ? -1 : 1));\n    var outline = prevGroup ? prevGroup.outlines[cursor] : [0];\n\n    this._renderer.updateSize(items);\n\n    groups.forEach(function (group) {\n      var groupOutline = group.outlines[isAppend ? \"start\" : \"end\"];\n      var isRelayout = !outline.length || (outline.length === groupOutline.length ? !outline.every(function (v, index) {\n        return v === groupOutline[index];\n      }) : true);\n\n      if (!isRelayout) {\n        outline = group.outlines[isAppend ? \"end\" : \"start\"];\n        DOMRenderer.renderItems(group.items);\n        return;\n      }\n\n      var groupItems = group.items;\n      var groupInfo = layout[isAppend ? \"append\" : \"prepend\"](groupItems, outline, true);\n      assign(group, groupInfo);\n      DOMRenderer.renderItems(groupInfo.items);\n      outline = groupInfo.outlines[isAppend ? \"end\" : \"start\"];\n    });\n    var startCursor = Math.max(infinite.getCursor(\"start\"), 0);\n    var endCursor = Math.max(infinite.getCursor(\"end\"), 0);\n    var requestStartCursor = itemManager.indexOf(groups[0].groupKey);\n    var requestEndCursor = itemManager.indexOf(groups[groups.length - 1].groupKey);\n    var isInCursor = true;\n\n    if (requestStartCursor > endCursor + 1 || requestEndCursor < startCursor - 1) {\n      isInCursor = false;\n    }\n\n    if (isInCursor) {\n      if (isAppend) {\n        requestStartCursor = startCursor;\n        requestEndCursor = Math.max(endCursor, requestEndCursor);\n      } else {\n        requestStartCursor = Math.max(Math.min(startCursor, requestStartCursor), 0);\n        requestEndCursor = endCursor;\n      }\n    }\n\n    if (requestStartCursor > requestEndCursor) {\n      var tempCursor = requestStartCursor;\n      requestStartCursor = requestEndCursor;\n      requestEndCursor = tempCursor;\n    }\n\n    callbackComponent.trigger(\"renderComplete\", {\n      start: requestStartCursor,\n      end: requestEndCursor\n    });\n    callbackComponent.trigger(\"layoutComplete\", {\n      items: ItemManager.pluck(groups, \"items\"),\n      isAppend: isAppend\n    });\n  };\n\n  __proto._error = function (callbackComponent, removeTarget, replaceTarget, target, items, errorIndex) {\n    var itemManager = this._itemManager;\n    var item = items[errorIndex];\n    var element = item.el;\n    var prefix = this.options.attributePrefix; // remove item\n\n    var removeItem = function removeItem() {\n      if (hasTarget(removeTarget, element)) {\n        return;\n      }\n\n      removeTarget.push(element);\n      var index = replaceTarget.indexOf(errorIndex);\n      index !== -1 && replaceTarget.splice(index, 1);\n    }; // remove image\n\n\n    var remove = function remove() {\n      if (target === element) {\n        removeItem();\n        return;\n      }\n\n      if (hasTarget(removeTarget, element)) {\n        return;\n      }\n\n      target.parentNode.removeChild(target);\n      item.content = element.outerHTML;\n\n      if (hasTarget(replaceTarget, errorIndex)) {\n        return;\n      }\n\n      replaceTarget.push(errorIndex);\n    }; // replace image\n\n\n    var replace = function replace(src) {\n      if (hasTarget(removeTarget, element)) {\n        return;\n      }\n\n      if (src) {\n        if (matchHTML(src) || _typeof(src) === \"object\") {\n          var parentNode = target.parentNode;\n          parentNode.insertBefore($(src), target);\n          parentNode.removeChild(target);\n          item.content = element.outerHTML;\n        } else {\n          target.src = src;\n\n          if (target.getAttribute(prefix + \"width\")) {\n            removeAutoSizer(target, prefix);\n            target.removeAttribute(prefix + \"width\");\n            target.removeAttribute(prefix + \"height\");\n          }\n        }\n      }\n\n      item.content = element.outerHTML;\n\n      if (hasTarget(replaceTarget, errorIndex)) {\n        return;\n      }\n\n      replaceTarget.push(errorIndex);\n    }; // replace item\n\n\n    var replaceItem = function replaceItem(content) {\n      if (hasTarget(removeTarget, element)) {\n        return;\n      }\n\n      element.innerHTML = content;\n      item.content = element.outerHTML;\n\n      if (hasTarget(replaceTarget, errorIndex)) {\n        return;\n      }\n\n      replaceTarget.push(errorIndex);\n    };\n\n    var totalIndex = itemManager.pluck(\"items\").indexOf(item);\n    callbackComponent.trigger(\"imageError\", {\n      target: target,\n      element: element,\n      items: items,\n      item: item,\n      itemIndex: errorIndex,\n      replace: replace,\n      replaceItem: replaceItem,\n      remove: remove,\n      removeItem: removeItem,\n      totalIndex: totalIndex\n    });\n  };\n\n  __proto._end = function (callbackComponent, removeTarget, replaceTarget, items) {\n    var _this = this;\n\n    var attributePrefix = this.options.attributePrefix;\n    var removeTargetLength = removeTarget.length;\n    var replaceTargetLength = replaceTarget.length;\n\n    if (!removeTargetLength && !replaceTargetLength) {\n      callbackComponent.trigger(\"finish\", {\n        remove: []\n      });\n      return;\n    }\n\n    var layoutedItems = replaceTarget.map(function (itemIndex) {\n      return items[itemIndex];\n    });\n\n    if (!replaceTargetLength) {\n      callbackComponent.trigger(\"finish\", {\n        remove: removeTarget,\n        layout: true\n      });\n      return;\n    } // wait layoutComplete beacause of error event.\n\n\n    check(layoutedItems.map(function (v) {\n      return v.el;\n    }), attributePrefix).on(\"ready\", function () {\n      _this._renderer.updateSize(layoutedItems);\n\n      callbackComponent.trigger(\"finish\", {\n        remove: removeTarget,\n        layout: true\n      });\n    });\n  };\n\n  return RenderManager;\n}();\n\nvar Watcher = /*#__PURE__*/function () {\n  function Watcher(view, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    var _this = this;\n\n    this._containerOffset = 0;\n    this._isScrollIssue = IS_IOS; //  When InfiniteGrid is initialized.\n    // The initial value is null to block the scroll event when returning from browser behavior.\n\n    this._prevPos = null;\n\n    this._onCheck = function () {\n      var prevPos = _this.getScrollPos();\n\n      var orgScrollPos = _this.getOrgScrollPos();\n\n      _this.setScrollPos(orgScrollPos);\n\n      var scrollPos = _this.getScrollPos();\n\n      if (prevPos === null || _this._isScrollIssue && orgScrollPos === 0 || prevPos === scrollPos) {\n        orgScrollPos && (_this._isScrollIssue = false);\n        return;\n      }\n\n      _this._isScrollIssue = false;\n\n      _this.options.check({\n        isForward: prevPos < scrollPos,\n        scrollPos: scrollPos,\n        orgScrollPos: orgScrollPos,\n        horizontal: _this.options.horizontal\n      });\n    };\n\n    this._onResize = function () {\n      if (_this._timer.resize) {\n        clearTimeout(_this._timer.resize);\n      }\n\n      _this._timer.resize = setTimeout(function () {\n        _this.resize();\n\n        _this.options.resize();\n\n        _this._timer.resize = null;\n      }, 100);\n    };\n\n    assign(this.options = {\n      container: view,\n      resize: function resize() {\n        return void 0;\n      },\n      check: function check() {\n        return void 0;\n      },\n      isOverflowScroll: false,\n      horizontal: false\n    }, options);\n    this._timer = {\n      resize: null\n    };\n    this._view = view;\n    this.attachEvent();\n    this.resize();\n    this.setScrollPos();\n  }\n\n  var __proto = Watcher.prototype;\n\n  __proto.getStatus = function () {\n    return {\n      _prevPos: this._prevPos,\n      scrollPos: this.getOrgScrollPos()\n    };\n  };\n\n  __proto.setStatus = function (status, applyScrollPos) {\n    if (applyScrollPos === void 0) {\n      applyScrollPos = true;\n    }\n\n    this._prevPos = status._prevPos;\n    applyScrollPos && this.scrollTo(status.scrollPos);\n  };\n\n  __proto.scrollBy = function (pos) {\n    var arrPos = this.options.horizontal ? [pos, 0] : [0, pos];\n    scrollBy(this._view, arrPos[0], arrPos[1]);\n    this.setScrollPos();\n  };\n\n  __proto.scrollTo = function (pos) {\n    var arrPos = this.options.horizontal ? [pos, 0] : [0, pos];\n    scrollTo(this._view, arrPos[0], arrPos[1]);\n  };\n\n  __proto.getScrollPos = function () {\n    return this._prevPos;\n  };\n\n  __proto.setScrollPos = function (pos) {\n    if (pos === void 0) {\n      pos = this.getOrgScrollPos();\n    }\n\n    this._prevPos = pos - this.getContainerOffset();\n  };\n\n  __proto.attachEvent = function () {\n    addEvent(this._view, \"scroll\", this._onCheck);\n    addEvent(win, \"resize\", this._onResize);\n  };\n\n  __proto.getOrgScrollPos = function () {\n    return scroll(this._view, this.options.horizontal);\n  };\n\n  __proto.reset = function () {\n    this._prevPos = null;\n  };\n\n  __proto.getContainerOffset = function () {\n    return this._containerOffset;\n  };\n\n  __proto.resize = function () {\n    this._containerOffset = this.options.isOverflowScroll ? 0 : this._getOffset();\n  };\n\n  __proto.detachEvent = function () {\n    removeEvent(this._view, \"scroll\", this._onCheck);\n    removeEvent(win, \"resize\", this._onResize);\n  };\n\n  __proto.destroy = function () {\n    this.detachEvent();\n    this.reset();\n  };\n\n  __proto._getOffset = function () {\n    var _a = this.options,\n        container = _a.container,\n        horizontal = _a.horizontal;\n    var rect = container.getBoundingClientRect();\n    return rect[horizontal ? \"left\" : \"top\"] + this.getOrgScrollPos();\n  };\n\n  return Watcher;\n}(); // https://stackoverflow.com/questions/43216659/babel-ie8-inherit-issue-with-object-create\n\n/* eslint-disable */\n// if (typeof Object.create !== \"function\") {\n//   // tslint:disable\n//   Object.create = (o: any, properties: any) => {\n//     if (typeof o !== \"object\" && typeof o !== \"function\") {\n//       throw new TypeError(\"Object prototype may only be an Object: \" + o);\n//     } else if (o === null) {\n//       throw new Error(\"This browser's implementation of Object.create is a shim and doesn't support 'null' as the first argument.\");\n//     }\n//     function F() { }\n//     F.prototype = o;\n//     return new F();\n//   };\n//   // tslint:enable\n// }\n\n/* eslint-enable */\n\n/**\n * A module used to arrange card elements including content infinitely according to layout type. With this module, you can implement various layouts composed of different card elements whose sizes vary. It guarantees performance by maintaining the number of DOMs the module is handling under any circumstance\n * @ko 콘텐츠가 있는 카드 엘리먼트를 레이아웃 타입에 따라 무한으로 배치하는 모듈. 다양한 크기의 카드 엘리먼트를 다양한 레이아웃으로 배치할 수 있다. 카드 엘리먼트의 개수가 계속 늘어나도 모듈이 처리하는 DOM의 개수를 일정하게 유지해 최적의 성능을 보장한다\n * @alias eg.InfiniteGrid\n * @extends eg.Component\n *\n * @example\n```\n<ul id=\"grid\">\n  <li class=\"card\">\n    <div>test1</div>\n  </li>\n  <li class=\"card\">\n    <div>test2</div>\n  </li>\n  <li class=\"card\">\n    <div>test3</div>\n  </li>\n  <li class=\"card\">\n    <div>test4</div>\n  </li>\n  <li class=\"card\">\n    <div>test5</div>\n  </li>\n  <li class=\"card\">\n    <div>test6</div>\n  </li>\n</ul>\n<script>\nvar some = new eg.InfiniteGrid(\"#grid\").on(\"layoutComplete\", function(e) {\n  // ...\n});\n\n// If you already have items in the container, call \"layout\" method.\nsome.layout();\n</script>\n```\n *\n * @support {\"ie\": \"8+\", \"ch\" : \"latest\", \"ff\" : \"latest\",  \"sf\" : \"latest\", \"edge\" : \"latest\", \"ios\" : \"7+\", \"an\" : \"2.1+ (except 3.x)\"}\n **/\n\n\nvar InfiniteGrid = /*#__PURE__*/function (_super) {\n  __extends(InfiniteGrid, _super);\n  /**\n   * @param {HTMLElement|String|jQuery} element A base element for a module <ko>모듈을 적용할 기준 엘리먼트</ko>\n   * @param {Object} [options] The option object of the eg.InfiniteGrid module <ko>eg.InfiniteGrid 모듈의 옵션 객체</ko>\n   * @param {String} [options.itemSelector] A selector to select card elements that make up the layout<ko>레이아웃을 구성하는 카드 엘리먼트를 선택할 선택자(selector)</ko>\n   * @param {Boolean} [options.useRecycle=true] Indicates whether keep the number of DOMs is maintained. If the useRecycle value is 'true', keep the number of DOMs is maintained. If the useRecycle value is 'false', the number of DOMs will increase as card elements are added. <ko>DOM의 수를 유지할지 여부를 나타낸다. useRecycle 값이 'true'이면 DOM 개수를 일정하게 유지한다. useRecycle 값이 'false' 이면 카드 엘리먼트가 추가될수록 DOM 개수가 계속 증가한다.</ko>\n   * @param {Boolean} [options.isOverflowScroll=false] Indicates whether overflow:scroll is applied<ko>overflow:scroll 적용여부를 결정한다.</ko>\n   * @param {Boolean} [options.horizontal=false] Direction of the scroll movement (true: horizontal, false: vertical) <ko>스크롤 이동 방향 (true 가로방향, false 세로방향)</ko>\n   * @param {Boolean} [options.useFit=true] The useFit option scrolls upwards so that no space is visible until an item is added <ko>위로 스크롤할 시 아이템을 추가하는 동안 보이는 빈 공간을 안보이게 한다.</ko>\n   * @param {Boolean} [options.isEqualSize=false] Indicates whether sizes of all card elements are equal to one another. If sizes of card elements to be arranged are all equal and this option is set to \"true\", the performance of layout arrangement can be improved. <ko>카드 엘리먼트의 크기가 동일한지 여부. 배치될 카드 엘리먼트의 크기가 모두 동일할 때 이 옵션을 'true'로 설정하면 레이아웃 배치 성능을 높일 수 있다</ko>\n   * @param {Boolean} [options.isConstantSize=false] Indicates whether sizes of all card elements does not change, the performance of layout arrangement can be improved. <ko>모든 카드 엘리먼트의 크기가 불변일 때 이 옵션을 'true'로 설정하면 레이아웃 배치 성능을 높일 수 있다</ko>\n   * @param {Number} [options.transitionDruation=0] Indicates how many seconds a transition effect takes to complete. <ko>트랜지션 효과를 완료하는데 걸리는 시간을 나타낸다.</ko>\n   * @param {Number} [options.threshold=100] The threshold size of an event area where card elements are added to a layout.<ko>레이아웃에 카드 엘리먼트를 추가하는 이벤트가 발생하는 기준 영역의 크기.</ko>\n   * @param {String} [options.attributePrefix=\"data-\"] The prefix to use element's data attribute.<ko>엘리먼트의 데이타 속성에 사용할 접두사.</ko>\n   * @param {boolean} [options.renderExternal=false] Whether to use external rendering. It will delegate DOM manipulation and can synchronize the rendered state by calling `sync()` method. You can use this option to use in frameworks like React, Vue, Angular, which has its states and rendering methods.<ko>외부 렌더링을 사용할 지의 여부. 이 옵션을 사용시 렌더링을 외부에 위임할 수 있고, `sync()`를 호출하여 그 상태를 동기화할 수 있다. 이 옵션을 사용하여, React, Vue, Angular 등 자체적인 상태와 렌더링 방법을 갖는 프레임워크에 대응할 수 있다.</ko>\n   */\n\n\n  function InfiniteGrid(element, options) {\n    var _this = _super.call(this) || this;\n\n    _this._loadingBar = {};\n    _this._requestGroups = [];\n    assign(_this.options = _assign({}, DEFAULT_OPTIONS), options);\n    DEFENSE_BROWSER && (_this.options.useFit = false);\n    IS_ANDROID2 && (_this.options.isOverflowScroll = false);\n\n    _this._reset();\n\n    var _a = _this.options,\n        isOverflowScroll = _a.isOverflowScroll,\n        isEqualSize = _a.isEqualSize,\n        isConstantSize = _a.isConstantSize,\n        horizontal = _a.horizontal,\n        threshold = _a.threshold,\n        useRecycle = _a.useRecycle,\n        attributePrefix = _a.attributePrefix;\n    _this._itemManager = new ItemManager();\n    _this._renderer = new DOMRenderer(element, {\n      isEqualSize: isEqualSize,\n      isConstantSize: isConstantSize,\n      horizontal: horizontal,\n      container: isOverflowScroll\n    });\n    _this._watcher = new Watcher(_this._renderer.view, {\n      isOverflowScroll: isOverflowScroll,\n      horizontal: horizontal,\n      container: _this._renderer.container,\n      resize: function resize() {\n        return _this._onResize();\n      },\n      check: function check(param) {\n        return _this._onCheck(param);\n      }\n    });\n    _this._infinite = new Infinite(_this._itemManager, {\n      useRecycle: useRecycle,\n      threshold: threshold,\n      append: function append(param) {\n        return _this._requestAppend(param);\n      },\n      prepend: function prepend(param) {\n        return _this._requestPrepend(param);\n      },\n      recycle: function recycle(param) {\n        return _this._recycle([param]);\n      }\n    });\n    _this._renderManager = new RenderManager(_this._infinite, _this._itemManager, _this._renderer, {\n      attributePrefix: attributePrefix,\n      isEqualSize: isEqualSize,\n      isConstantSize: isConstantSize,\n      horizontal: horizontal\n    });\n    return _this;\n  }\n  /**\n   * Adds a card element at the bottom of a layout. This method is available only if the isProcessing() method returns false.\n   * @ko 카드 엘리먼트를 레이아웃 아래에 추가한다. isProcessing() 메서드의 반환값이 'false'일 때만 이 메서드를 사용할 수 있다\n   * 이 메소드는 isProcessing()의 반환값이 false일 경우에만 사용 가능하다.\n   * @param {Array|jQuery} elements Array of the card elements to be added <ko>추가할 카드 엘리먼트의 배열</ko>\n   * @param {Number|String} [groupKey] The group key to be configured in a card element. It is automatically generated by default.\n   * <ko>추가할 카드 엘리먼트에 설정할 그룹 키. 생략하면 값이 자동으로 생성된다.</ko>\n   * @return {eg.InfiniteGrid} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n   * infinitegrid.append(\"&lt;div class='item'&gt;test1&lt;/div&gt;&lt;div class='item'&gt;test2&lt;/div&gt;\");\n   * infinitegrid.append([\"&lt;div class='item'&gt;test1&lt;/div&gt;\", \"&lt;div class='item'&gt;test2&lt;/div&gt;\"]);\n   * infinitegrid.append([HTMLElement1, HTMLElement2]);\n   * infinitegrid.append(jQuery([\"&lt;div class='item'&gt;test1&lt;/div&gt;\", \"&lt;div class='item'&gt;test2&lt;/div&gt;\"]));\n   */\n\n\n  var __proto = InfiniteGrid.prototype;\n\n  __proto.append = function (elements, groupKey) {\n    this._layout && this._insert({\n      elements: elements,\n      isAppend: true,\n      groupKey: groupKey\n    });\n    return this;\n  };\n  /**\n   * Adds a card element at the top of a layout. This method is available only if the isProcessing() method returns false.\n   * @ko 카드 엘리먼트를 레이아웃의 위에 추가한다. isProcessing() 메서드의 반환값이 'false'일 때만 이 메서드를 사용할 수 있다\n   * @param {Array|jQuery} elements Array of the card elements to be added <ko>추가할 카드 엘리먼트 배열</ko>\n   * @param {Number|String} [groupKey] The group key to be configured in a card element. It is automatically generated by default.\n   * <ko>추가할 카드 엘리먼트에 설정할 그룹 키. 생략하면 값이 자동으로 생성된다.</ko>\n   * @return {eg.InfiniteGrid} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n   * infinitegrid.prepend(\"&lt;div class='item'&gt;test1&lt;/div&gt;&lt;div class='item'&gt;test2&lt;/div&gt;\");\n   * infinitegrid.prepend([\"&lt;div class='item'&gt;test1&lt;/div&gt;\", \"&lt;div class='item'&gt;test2&lt;/div&gt;\"]);\n   * infinitegrid.prepend([HTMLElement1, HTMLElement2]);\n   * infinitegrid.prepend(jQuery([\"&lt;div class='item'&gt;test1&lt;/div&gt;\", \"&lt;div class='item'&gt;test2&lt;/div&gt;\"]));\n   */\n\n\n  __proto.prepend = function (elements, groupKey) {\n    this._layout && this._insert({\n      elements: elements,\n      isAppend: false,\n      groupKey: groupKey\n    });\n    return this;\n  };\n  /**\n   * Specifies the Layout class to use.\n   * @ko 사용할 Layout 클래스를 지정한다.\n   * @param {Class|Object} LayoutKlass The Layout class to use or an instance of a layout moudle<ko>사용할 Layout 클래스 또는 레이아웃 모듈의 인스턴스</ko>\n   * @param {Object} options Options to apply to the Layout.<ko>Layout에 적용할 옵션</ko>\n   * @return {eg.InfiniteGrid} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n   * infinitegrid.setLayout(eg.InfiniteGrid.GridLayout, {\n   *  margin: 10,\n   *  align: \"start\"\n   * });\n   * infinitegrid.setLayout(eg.InfiniteGrid.JustifiedLayout, {\n   *  margin: 10,\n   *  minSize: 100,\n   *  maxSize: 200\n   * });\n   * infinitegrid.setLayout(eg.InfiniteGrid.SquareLayout, {\n   *  margin: 10,\n   *  column: 2\n   * });\n   * infinitegrid.setLayout(eg.InfiniteGrid.FrameLayout, {\n   *  margin: 10,\n   *  frame: [\n   *   [1, 2],\n   *   [4, 3],\n   *  ]\n   * });\n   * infinitegrid.setLayout(eg.InfiniteGrid.PackingLayout, {\n   *  margin: 10,\n   *  aspectRatio: 1.5\n   * });\n   * var layout = new eg.InfiniteGrid.GridLayout({\n   *   margin: 10,\n   *  align: \"start\"\n   * });\n   * infinitegrid.setLayout(layout);\n   */\n\n\n  __proto.setLayout = function (LayoutKlass, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    var horizontal = this.options.horizontal;\n\n    if (typeof LayoutKlass === \"function\") {\n      this._layout = new LayoutKlass(assign(options, {\n        horizontal: horizontal\n      }));\n    } else {\n      LayoutKlass.options.horizontal = horizontal;\n      this._layout = LayoutKlass;\n    }\n\n    this._renderManager.setLayout(this._layout);\n\n    this._renderer.resize();\n\n    this._setSize(this._renderer.getViewportSize());\n\n    return this;\n  };\n  /**\n   * Returns the layouted items.\n   * @ko 레이아웃된 아이템들을 반환한다.\n   * @param {Boolean} includeCached Indicates whether to include the cached items. <ko>캐싱된 아이템을 포함할지 여부를 나타낸다.</ko>\n   * @returns List of items <ko>아이템의 목록</ko>\n   */\n\n\n  __proto.getItems = function (includeCached) {\n    if (includeCached === void 0) {\n      includeCached = false;\n    }\n\n    return includeCached ? this._itemManager.pluck(\"items\") : this._infinite.getVisibleItems();\n  };\n  /**\n   * @param - Get items to render on screen.\n   * @ko 화면에 렌더될 아이템들 가져온다.\n   * @private\n   * @param - The groups currently being added by request.<ko>요청에 의해 지금 추가중인 그룹들.</ko>\n   * @return - The items to be rendered on screen. <ko>화면레 렌더될 아이템들.</ko>\n   */\n\n\n  __proto.getRenderingItems = function () {\n    var items = this.getItems();\n    var itemKeys = {};\n    items.forEach(function (item) {\n      itemKeys[item.itemKey] = true;\n    });\n    var nextVisisbleItems = ItemManager.pluck(this._requestGroups, \"items\").filter(function (item) {\n      if (itemKeys[item.itemKey]) {\n        return false;\n      }\n\n      itemKeys[item.itemKey] = true;\n      return true;\n    });\n    return items.concat(nextVisisbleItems);\n  };\n  /**\n   * Synchronize info of items with info given by external rendering.\n   * @ko 외부 렌더링 방식에 의해 아이템의 정보들을 동기화한다.\n   * @private\n   * @param - all item infos to synchronize <ko>동기화할 전체 아이템 정보들.</ko>\n   */\n\n\n  __proto.beforeSync = function (items) {\n    return this._infinite.sync(items);\n  };\n  /**\n   * Synchronize info of items with DOM info given by external rendering.\n   * @ko 외부 렌더링 방식에 의해 입력받은 DOM의 정보와 현재 아이템 정보를 동기화 한다.\n   * @private\n   * @param - The DOM elements that are currently visible.<ko>현재 보여지고 있는 DOM 엘리먼트들.</ko>\n   * @param - The groups currently being added by request.<ko>요청에 의해 지금 추가중인 그룹들.</ko>\n   */\n\n\n  __proto.sync = function (elements) {\n    var itemManager = this._itemManager;\n    var infinite = this._infinite;\n    var items = this.getRenderingItems();\n    items.forEach(function (item, i) {\n      var isChange = item.el !== elements[i];\n      item.el = elements[i];\n\n      if (isChange) {\n        DOMRenderer.renderItem(item, item.rect);\n      }\n    });\n\n    if (this._isProcessing()) {\n      return;\n    }\n\n    var newItems = items.filter(function (item) {\n      return !item.orgSize || !item.orgSize.width;\n    });\n\n    if (newItems.length) {\n      this._postLayout({\n        fromCache: false,\n        groups: infinite.getVisibleData(),\n        newItems: newItems,\n        isAppend: true,\n        isTrusted: false\n      });\n    } else {\n      var size = itemManager.size();\n\n      if (!size) {\n        this._requestAppend({});\n      } else if (infinite.getCursor(\"start\") < 0) {\n        var firstGroup = itemManager.getGroup(0);\n\n        this._postLayout({\n          groups: [firstGroup],\n          hasChildren: false,\n          fromCache: false,\n          isAppend: true\n        });\n      } else {\n        this._infinite.scroll(this._watcher.getScrollPos());\n      }\n    }\n  };\n  /**\n   * Rearranges a layout.\n   * @ko 레이아웃을 다시 배치한다.\n   * @param {Boolean} [isRelayout=true] Indicates whether a card element is being relayouted <ko>카드 엘리먼트 재배치 여부</ko>\n   * @return {eg.InfiniteGrid} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   */\n\n\n  __proto.layout = function (isRelayout) {\n    if (isRelayout === void 0) {\n      isRelayout = true;\n    }\n\n    if (!this._layout) {\n      return this;\n    }\n\n    var renderer = this._renderer;\n    var itemManager = this._itemManager;\n    var infinite = this._infinite;\n    var isResize = renderer.resize();\n    var items = this.getItems();\n    var _a = this.options,\n        isEqualSize = _a.isEqualSize,\n        isConstantSize = _a.isConstantSize,\n        transitionDuration = _a.transitionDuration;\n    var isLayoutAll = isRelayout && (isEqualSize || isConstantSize);\n    var size = itemManager.size();\n\n    this._watcher.resize();\n\n    if (isRelayout) {\n      if (isResize) {\n        this._setSize(renderer.getViewportSize());\n      }\n    } // check childElement\n\n\n    if (!items.length) {\n      var children_1 = toArray(renderer.container.children).filter(function (el) {\n        return el.className.indexOf(IGNORE_CLASSNAME) === -1;\n      });\n      var hasChildren = children_1.length > 0;\n\n      if (size) {\n        var firstGroup = itemManager.getGroup(0);\n\n        if (hasChildren) {\n          firstGroup.items.forEach(function (item, i) {\n            item.el = children_1[i];\n          });\n        } // has items, no visible items\n\n\n        this._postLayout({\n          groups: [firstGroup],\n          hasChildren: hasChildren,\n          fromCache: false,\n          isAppend: true\n        });\n      } else {\n        // no items, no visible items\n        if (hasChildren) {\n          var groupKey = children_1[0].getAttribute(\"data-groupkey\");\n\n          if (typeof groupKey !== \"string\") {\n            groupKey = undefined;\n          }\n\n          this._insert({\n            elements: children_1,\n            isAppend: true,\n            hasChildren: true,\n            groupKey: groupKey\n          });\n        } else {\n          if (renderer.getContainerSize()) {\n            renderer.setContainerSize(0);\n          }\n\n          this._requestAppend({});\n        }\n      }\n\n      return this;\n    } // layout datas\n\n\n    var _b = infinite.getCursors(),\n        startCursor = _b[0],\n        endCursor = _b[1];\n\n    var data = isLayoutAll || !(isRelayout && isResize) ? itemManager.getGroups() : itemManager.sliceGroups(startCursor, endCursor + 1); // LayoutManger interface\n\n    this._relayout(isRelayout, data, isResize ? items : []);\n\n    if (isLayoutAll) {\n      this._fit();\n    } else if (isRelayout && isResize) {\n      itemManager.clearOutlines(startCursor, endCursor);\n    }\n\n    DOMRenderer.renderItems(items, transitionDuration);\n    isRelayout && this._watcher.setScrollPos();\n\n    this._onLayoutComplete({\n      items: items,\n      isAppend: true,\n      fromCache: true,\n      isTrusted: false,\n      useRecycle: false,\n      isLayout: true\n    });\n\n    return this;\n  };\n  /**\n   * Removes a item corresponding to an index on a grid layout.\n   * @ko 그리드 레이아웃에서 인덱스에 해당하는 아이템 삭제한다.\n   * @param - Index of group corresponding to item to remove <ko>삭제할 아이템에 해당하는 그룹의 인덱스</ko>\n   * @param - Index of item to remove on group <ko>그룹에서 삭제할 아이템의 인덱스</ko>\n   * @return {Object}  Removed items information <ko>삭제된 아이템들 정보</ko>\n   */\n\n\n  __proto.removeByIndex = function (groupIndex, itemIndex, isLayout) {\n    if (isLayout === void 0) {\n      isLayout = true;\n    }\n\n    var _a = this._infinite.remove(groupIndex, itemIndex),\n        items = _a.items,\n        group = _a.group;\n\n    items.forEach(function (item) {\n      DOMRenderer.removeElement(item.el);\n    });\n\n    if (items.length) {\n      isLayout && this.layout(!!group);\n      return items;\n    }\n\n    return [];\n  };\n  /**\n   * Removes a item element on a grid layout.\n   * @ko 그리드 레이아웃의 카드 엘리먼트를 삭제한다.\n   * @param {HTMLElement} item element to be removed <ko>삭제될 아이템 엘리먼트</ko>\n   * @return {Object}  Removed items information <ko>삭제된 아이템들 정보</ko>\n   */\n\n\n  __proto.remove = function (element, isLayout) {\n    if (isLayout === void 0) {\n      isLayout = true;\n    }\n\n    var _a = this._itemManager.indexesOfElement(element),\n        groupIndex = _a.groupIndex,\n        itemIndex = _a.itemIndex;\n\n    return this.removeByIndex(groupIndex, itemIndex, isLayout);\n  };\n  /**\n   * Returns the list of group keys which belongs to card elements currently being maintained. You can use the append() or prepend() method to configure group keys so that multiple card elements can be managed at once. If you do not use these methods to configure group keys, groupkey is automatically generated.\n   * @ko 현재 유지하고 있는 카드 엘리먼트의 그룹 키 목록을 반환한다. 여러 개의 카드 엘리먼트를 묶어서 관리할 수 있도록 append() 메서드나 prepend() 메서드에서 그룹 키를 지정할 수 있다. append() 메서드나 prepend() 메서드에서 그룹 키를 지정하지 않았다면 자동으로 그룹키가 생성된다.\n   * @param {Boolean} includeCached Indicates whether to include the cached groups. <ko>캐싱된 그룹을 포함할지 여부를 나타낸다.</ko>\n   * @return {Array} List of group keys <ko>그룹 키의 목록</ko>\n   */\n\n\n  __proto.getGroupKeys = function (includeCached) {\n    var data = includeCached ? this._itemManager.getGroups() : this._infinite.getVisibleData();\n    return data.map(function (v) {\n      return v.groupKey;\n    });\n  };\n  /**\n   * Returns the current state of a module such as location information. You can use the setStatus() method to restore the information returned through a call to this method.\n   * @ko 카드의 위치 정보 등 모듈의 현재 상태 정보를 반환한다. 이 메서드가 반환한 정보를 저장해 두었다가 setStatus() 메서드로 복원할 수 있다\n   * @return {Object} State object of the eg.InfiniteGrid module<ko>eg.InfiniteGrid 모듈의 상태 객체</ko>\n   */\n\n\n  __proto.getStatus = function (startKey, endKey) {\n    return {\n      _status: assign({}, this._status),\n      _itemManager: this._itemManager.getStatus(startKey, endKey),\n      _renderer: this._renderer.getStatus(),\n      _watcher: this._watcher.getStatus(),\n      _infinite: this._infinite.getStatus(startKey, endKey)\n    };\n  };\n  /**\n   * Sets the state of the eg.InfiniteGrid module with the information returned through a call to the getStatue() method.\n   * @ko getStatue() 메서드가 저장한 정보로 eg.InfiniteGrid 모듈의 상태를 설정한다.\n   * @param {Object} status State object of the eg.InfiniteGrid module <ko>eg.InfiniteGrid 모듈의 상태 객체</ko>\n   * @param {boolean} [applyScrollPos=true] Checks whether to scroll<ko>스크롤의 위치를 복원할지 결정한다.</ko>\n   * @return {eg.InfiniteGrid} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   */\n\n\n  __proto.setStatus = function (status, applyScrollPos, syncElements) {\n    if (applyScrollPos === void 0) {\n      applyScrollPos = true;\n    }\n\n    if (!status) {\n      return this;\n    }\n\n    var _status = status._status,\n        _renderer = status._renderer,\n        _itemManager = status._itemManager,\n        _watcher = status._watcher,\n        _infinite = status._infinite;\n\n    if (!_status || !_renderer || !_itemManager || !_watcher || !_infinite) {\n      return this;\n    }\n\n    var renderExternal = this.options.renderExternal;\n    var items = this._itemManager;\n    var renderer = this._renderer;\n    var watcher = this._watcher;\n    var infinite = this._infinite;\n    watcher.detachEvent();\n    assign(this._status, _status);\n    this._status.processingStatus = IDLE;\n    items.setStatus(_itemManager);\n    renderer.setStatus(_renderer);\n    infinite.setStatus(_infinite);\n    var visibleItems = this.getItems();\n    var length = visibleItems.length;\n\n    if (renderExternal) {\n      visibleItems.forEach(function (item, i) {\n        item.el = syncElements[i];\n      });\n      DOMRenderer.renderItems(visibleItems);\n    } else {\n      renderer.createAndInsert(visibleItems, true);\n    }\n\n    var isReLayout = renderer.isNeededResize();\n    watcher.setStatus(_watcher, applyScrollPos);\n    watcher.attachEvent();\n    var _a = this.options,\n        isConstantSize = _a.isConstantSize,\n        isEqualSize = _a.isEqualSize;\n\n    if (!length) {\n      this._requestAppend({\n        cache: []\n      });\n    } else if (isReLayout) {\n      renderer.resize();\n\n      this._setSize(renderer.getViewportSize());\n\n      if (isConstantSize) {\n        this.layout(true);\n      } else {\n        this._itemManager.clearOutlines();\n\n        this._postLayout({\n          fromCache: true,\n          groups: isEqualSize ? items.getGroups() : infinite.getVisibleData(),\n          items: visibleItems,\n          newItems: visibleItems,\n          isAppend: true,\n          isTrusted: false\n        });\n      }\n    } else {\n      this.layout(false);\n    }\n\n    return this;\n  };\n  /**\n   * Clears added card elements and data.\n   * @ko 추가된 카드 엘리먼트와 데이터를 모두 지운다.\n   * @return {eg.InfiniteGrid} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   */\n\n\n  __proto.clear = function () {\n    this._itemManager.clear();\n\n    this._renderer.clear();\n\n    this._infinite.clear();\n\n    this._reset();\n\n    this._appendLoadingBar();\n\n    return this;\n  };\n  /**\n   * Specifies the Loading Bar to use for append or prepend items.\n   * @ko 아이템을 append 또는 prepend 하기 위해 사용할 로딩 바를 지정한다.\n   * @param {String|Object} [userLoadingBar={}] The loading bar HTML markup or element or element selector <ko> 로딩 바 HTML 또는 element 또는 selector </ko>\n   * @return {eg.InfiniteGrid} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   */\n\n\n  __proto.setLoadingBar = function (userLoadingBar) {\n    if (userLoadingBar === void 0) {\n      userLoadingBar = {};\n    }\n\n    var loadingBarObj = _typeof(userLoadingBar) === \"object\" ? userLoadingBar : {\n      append: userLoadingBar,\n      prepend: userLoadingBar\n    };\n    this._status.loadingSize = 0;\n    this._status.loadingStyle = {};\n    var loadingBar = this._loadingBar;\n    var isChangeLoadingBar = false;\n\n    for (var type in loadingBarObj) {\n      var loadingElement = $(loadingBarObj[type]);\n\n      if (loadingBar[type] !== loadingElement) {\n        loadingBar[type] = loadingElement;\n        isChangeLoadingBar = true;\n      }\n\n      if (!hasClass(loadingElement, IGNORE_CLASSNAME)) {\n        addClass(loadingElement, IGNORE_CLASSNAME);\n      }\n    }\n\n    if (isChangeLoadingBar) {\n      this._renderLoading();\n    }\n\n    this._appendLoadingBar();\n\n    return this;\n  };\n  /**\n   * Checks whether a card element or data is being added.\n   * @ko 카드 엘리먼트 추가 또는 데이터 로딩이 진행 중인지 확인한다\n   * @return {Boolean} Indicates whether a card element or data is being added <ko>카드 엘리먼트 추가 또는 데이터 로딩 진행 중 여부</ko>\n   */\n\n\n  __proto.isProcessing = function () {\n    return this._isProcessing() || this.isLoading();\n  };\n  /**\n   * Checks whether data is loading.\n   * @ko 데이터 로딩 중인지 확인한다\n   * @return {Boolean} Indicates whether data is loading <ko>데이터 로딩 진행 중 여부</ko>\n   */\n\n\n  __proto.isLoading = function () {\n    return this._getLoadingStatus() > 0;\n  };\n  /**\n   * Returns the element of loading bar.\n   * @ko 로딩 바의 element를 반환한다.\n   * @param {Boolean} [isAppend=currentLoadingBar|true] Checks whether the card element is added to the append () method. <ko>카드 엘리먼트가 append() 메서드로 추가 할 것인지 확인한다.</ko>\n   * @return {Element} The element of loading bar. <ko>로딩 바의 element</ko>\n   */\n\n\n  __proto.getLoadingBar = function (isAppend) {\n    if (isAppend === void 0) {\n      isAppend = this._getLoadingStatus() !== LOADING_PREPEND;\n    }\n\n    return this._loadingBar[isAppend ? \"append\" : \"prepend\"];\n  };\n  /**\n   * Start loading for append/prepend during loading data.\n   * @ko 데이터가 로딩되는 동안 append/prepend하길 위해 로딩을 시작한다.\n   * @param {Boolean} [isAppend=true] Checks whether the card element is added to the append () method. <ko>카드 엘리먼트가 append() 메서드로 추가 할 것인지 확인한다.</ko>\n   * @param {Object} [userStyle = {display: \"block\"}] custom style to apply to this loading bar for start. <ko> 로딩 시작을 위한 로딩 바에 적용할 커스텀 스타일 </ko>\n   * @return {eg.InfiniteGrid} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   */\n\n\n  __proto.startLoading = function (isAppend, userStyle) {\n    var _this = this;\n\n    if (userStyle === void 0) {\n      userStyle = {\n        display: \"block\"\n      };\n    }\n\n    if (this.isLoading()) {\n      return this;\n    }\n\n    var type = isAppend ? \"append\" : \"prepend\";\n\n    this._process(isAppend ? LOADING_APPEND : LOADING_PREPEND);\n\n    if (!this._loadingBar[type]) {\n      return this;\n    }\n\n    var next = function next() {\n      _this._renderLoading(userStyle);\n\n      _this._status.loadingStyle = userStyle;\n\n      if (!isAppend) {\n        _this._fit();\n      } else {\n        _this._setContainerSize(_this._getEdgeValue(\"end\") + _this._status.loadingSize);\n      }\n    };\n\n    if (this.options.renderExternal) {\n      this.trigger(\"render\", {\n        next: next\n      });\n    } else {\n      next();\n    }\n\n    return this;\n  };\n  /**\n   * End loading after startLoading() for append/prepend\n   * @ko  append/prepend하길 위해 startLoading() 호출해선 걸었던 로딩을 끝낸다.\n   * @param {Object} [userStyle = {display: \"none\"}] custom style to apply to this loading bar for end <ko> 로딩 시작을 위한 로딩 바에 적용할 커스텀 스타일 </ko>\n   * @return {eg.InfiniteGrid} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   */\n\n\n  __proto.endLoading = function (userStyle) {\n    if (userStyle === void 0) {\n      userStyle = {\n        display: \"none\"\n      };\n    }\n\n    var _a;\n\n    if (!this.isLoading()) {\n      return this;\n    }\n\n    var isAppend = this._getLoadingStatus() === LOADING_APPEND;\n    var type = isAppend ? \"append\" : \"prepend\";\n    var el = this._loadingBar[type];\n    var status = this._status;\n    var size = status.loadingSize;\n\n    this._process(LOADING_APPEND | LOADING_PREPEND, false);\n\n    status.loadingSize = 0;\n    status.loadingStyle = {};\n\n    if (el) {\n      var style = assign((_a = {}, _a[this.options.horizontal ? \"left\" : \"top\"] = -size + \"px\", _a), userStyle);\n\n      for (var property in style) {\n        el.style[property] = style[property];\n      }\n\n      if (!isAppend) {\n        this._fitItems(size);\n      } else {\n        this._setContainerSize(this._getEdgeValue(\"end\"));\n      }\n\n      if (this.options.renderExternal) {\n        this.trigger(\"render\", {\n          next: function next() {}\n        });\n      }\n    }\n\n    if (this.options.useRecycle && !this.isProcessing()) {\n      this._infinite.recycle(this._watcher.getScrollPos(), isAppend);\n    }\n\n    return this;\n  };\n  /**\n   * Retrieves the item via index or the element.\n   * @ko index 또는 element를 통해 아이템을 가져온다.\n   * @param {number | HTMLElement} [groupIndex=0] The element corresponding to item or the index of the group where the item is in position <ko> item에 해당하는 element 또는 해당 item이 있는 group의 index</ko>\n   * @param {number} [itemIndex] If groupIndex is used, the index of the item in the group <ko> groupIndex를 사용할 경우 해당 group에 있는 Item의 index </ko>\n   * @return The item containing the content, size and position,etc<ko>content, size, position 등이 담겨있는 item 정보</ko>\n   * @example\n    ig.getItem(0, 0);\n   ig.getItem(element);\n    {\n    el: HTMLElement,\n    content: \"<div>...</div>\",\n    size: {width: ..., height: ...},\n    rect: {top: ..., left: ..., width: ..., height: ...},\n   }\n   */\n\n\n  __proto.getItem = function (groupIndex, itemIndex) {\n    if (groupIndex === void 0) {\n      groupIndex = 0;\n    }\n\n    if (_typeof(groupIndex) === \"object\") {\n      if (!groupIndex) {\n        return;\n      }\n\n      var items = this.getItems();\n      var length = items.length;\n\n      for (var i = 0; i < length; ++i) {\n        if (items[i].el === groupIndex) {\n          return items[i];\n        }\n      }\n\n      return undefined;\n    } else {\n      var group = this._itemManager.getGroup(groupIndex);\n\n      return group && group.items[itemIndex || 0];\n    }\n  };\n  /**\n   * Updates the item via index or the element.\n   * @ko index 또는 element를 통해 아이템을 업데이트한다.\n   * @param {number | HTMLElement} [groupIndex=0] The element corresponding to item or the index of the group where the item is in position <ko> item에 해당하는 element 또는 해당 item이 있는 group의 index</ko>\n   * @param {number} [itemIndex] If groupIndex is used, the index of the item in the group <ko> groupIndex를 사용할 경우 해당 group에 있는 Item의 index </ko>\n   * @return {eg.InfiniteGrid} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n  element.innerHTML = \"2\";\n  element.style.height = \"400px\";\n  ig.updateItem(element);\n  ig.updateItem(0, 0);\n   */\n\n\n  __proto.updateItem = function (groupIndex, itemIndex) {\n    var item = this.getItem(groupIndex, itemIndex);\n    this._updateItem(item) && this.layout(false);\n    return this;\n  };\n  /**\n   * Update the currently displayed items.\n   * @ko 현재보여주는 아이템들을 업데이트한다.\n   * @return {eg.InfiniteGrid} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n  element.innerHTML = \"2\";\n  element.style.height = \"400px\";\n   element2.innerHTML = \"2\";\n  element2.style.height = \"400px\";\n   ig.updateItems();\n   */\n\n\n  __proto.updateItems = function () {\n    var _this = this;\n\n    this.getItems().forEach(function (item) {\n      _this._updateItem(item);\n    });\n    this.layout(false);\n    return this;\n  };\n  /**\n   * Move to some group or item position.\n   * @ko 해당하는 그룹 또는 아이템의 위치로 이동한다.\n   * @param {Number} [index] group's index <ko> 그룹의 index</ko>\n   * @param {Number} [itemIndex=-1] item's index <ko> 그룹의 index</ko>\n   * @return {eg.InfiniteGrid} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   */\n\n\n  __proto.moveTo = function (index, itemIndex) {\n    var _this = this;\n\n    if (itemIndex === void 0) {\n      itemIndex = 0;\n    }\n\n    if (this.isProcessing()) {\n      return this;\n    }\n\n    var data = this._itemManager.getGroup(index);\n\n    if (!data) {\n      return this;\n    }\n\n    var infinite = this._infinite;\n    var outlines = data.outlines;\n    var items = data.items;\n    var item = items[itemIndex];\n    var isResize = outlines.start && outlines.start.length === 0;\n\n    var _a = infinite.getCursors(),\n        startCursor = _a[0],\n        endCursor = _a[1];\n\n    var isInCursor = startCursor <= index && index <= endCursor;\n    var _b = this.options,\n        useRecycle = _b.useRecycle,\n        horizontal = _b.horizontal;\n\n    if (isInCursor || !useRecycle || !isResize) {\n      var pos = item ? item.rect[horizontal ? \"left\" : \"top\"] : Math.max.apply(Math, outlines.start);\n      var fit = Math.min.apply(Math, outlines.start);\n\n      if (fit < 0) {\n        // base < 0\n        this._fitItems(fit, 0);\n\n        pos -= fit;\n      }\n\n      var isAppend = index > startCursor;\n\n      if (isInCursor || isAppend) {\n        this._scrollTo(pos);\n\n        return this;\n      }\n\n      this._postLayout({\n        fromCache: true,\n        groups: [data],\n        items: items,\n        newItems: [],\n        isAppend: isAppend,\n        isTrusted: false\n      }).on(\"renderComplete\", function (_a) {\n        var start = _a.start,\n            end = _a.end;\n        var itemManager = _this._itemManager;\n\n        if (!itemManager) {\n          return;\n        }\n\n        var scrollPos = items[itemIndex].rect[horizontal ? \"left\" : \"top\"];\n\n        if (!isInCursor) {\n          itemManager.clearOutlines(start, end);\n        }\n\n        _this._scrollTo(scrollPos);\n\n        _this._setScrollPos(scrollPos);\n      });\n\n      return this;\n    } else {\n      var isAppend = index > endCursor || index < startCursor - 1;\n\n      this._postCache({\n        isAppend: isAppend,\n        cache: [data],\n        isTrusted: false\n      }).on(\"renderComplete\", function (_a) {\n        var start = _a.start,\n            end = _a.end;\n        var itemManager = _this._itemManager;\n\n        if (!itemManager) {\n          return;\n        }\n\n        var pos = items[itemIndex].rect[horizontal ? \"left\" : \"top\"];\n        itemManager.clearOutlines(start, end);\n\n        _this._scrollTo(pos);\n\n        _this._setScrollPos(pos);\n      });\n    }\n\n    return this;\n  };\n  /**\n  * Destroys elements, properties, and events used on a grid layout.\n  * @ko 그리드 레이아웃에 사용한 엘리먼트와 속성, 이벤트를 해제한다\n  */\n\n\n  __proto.destroy = function () {\n    this._infinite.clear();\n\n    this._watcher.destroy();\n\n    this._reset();\n\n    this._itemManager.clear();\n\n    this._renderer.destroy();\n  };\n\n  __proto._relayout = function (isRelayout, groups, items) {\n    var renderer = this._renderer;\n    var _a = renderer.options,\n        isEqualSize = _a.isEqualSize,\n        isConstantSize = _a.isConstantSize;\n    var layoutGroups = groups.filter(function (group) {\n      var item = group.items[0];\n      return item.orgSize && item.rect.top > DUMMY_POSITION / 10;\n    });\n\n    if (!layoutGroups.length) {\n      return [];\n    }\n\n    var outline = layoutGroups[0].outlines.start;\n\n    if (isRelayout) {\n      outline = [outline.length ? Math.min.apply(Math, outline) : 0];\n\n      if (!isConstantSize && items.length) {\n        renderer.updateSize(items); // update invisible items' size\n\n        if (isEqualSize && items[0].size) {\n          ItemManager.pluck(layoutGroups, \"items\").forEach(function (item) {\n            item.size = assign({}, items[0].size);\n          });\n        }\n      }\n    }\n\n    this._layout.layout(layoutGroups, outline);\n  };\n\n  __proto._setContainerSize = function (size) {\n    this._renderer.setContainerSize(Math.max(this._itemManager.getMaxEdgeValue(), size));\n  };\n\n  __proto._appendLoadingBar = function () {\n    if (!this.options.renderExternal) {\n      var loadingBar = this._loadingBar;\n      var container = this._renderer.container;\n\n      for (var type in loadingBar) {\n        container.appendChild(loadingBar[type]);\n      }\n    }\n  };\n\n  __proto._setSize = function (size) {\n    this._infinite.setSize(this._renderer.getViewSize());\n\n    this._layout.setSize(size);\n  };\n\n  __proto._fitItems = function (base, margin) {\n    if (margin === void 0) {\n      margin = 0;\n    }\n\n    base > 0 && this._watcher.scrollBy(-base);\n\n    this._itemManager.fit(base, this.options.horizontal);\n\n    DOMRenderer.renderItems(this.getItems());\n\n    this._setContainerSize(this._getEdgeValue(\"end\") || margin);\n\n    base < 0 && this._watcher.scrollBy(-base);\n  }; // called by visible\n\n\n  __proto._fit = function (useFit) {\n    if (useFit === void 0) {\n      useFit = this.options.useFit;\n    }\n\n    var base = this._getEdgeValue(\"start\");\n\n    var margin = this._getLoadingStatus() === LOADING_PREPEND && this._status.loadingSize || 0;\n    var _a = this.options,\n        isConstantSize = _a.isConstantSize,\n        isEqualSize = _a.isEqualSize,\n        useRecycle = _a.useRecycle;\n\n    if (!useRecycle || !useFit || isConstantSize || isEqualSize) {\n      if (base < margin) {\n        this._fitItems(base - margin, margin);\n      }\n\n      base = 0;\n    } else if (base !== 0 || margin) {\n      this._fitItems(base - margin, margin);\n    } else {\n      return 0;\n    }\n\n    this.isLoading() && this._renderLoading();\n    return base;\n  };\n\n  __proto._getEdgeValue = function (cursor) {\n    return this._infinite.getEdgeValue(cursor);\n  };\n\n  __proto._isProcessing = function () {\n    return (this._status.processingStatus & PROCESSING) > 0;\n  };\n\n  __proto._getLoadingStatus = function () {\n    return this._status.processingStatus & (LOADING_APPEND | LOADING_PREPEND);\n  };\n\n  __proto._process = function (status, isAdd) {\n    if (isAdd === void 0) {\n      isAdd = true;\n    }\n\n    if (isAdd) {\n      this._status.processingStatus |= status;\n    } else {\n      this._status.processingStatus -= this._status.processingStatus & status;\n    }\n  };\n\n  __proto._insert = function (_a) {\n    var elements = _a.elements,\n        isAppend = _a.isAppend,\n        hasChildren = _a.hasChildren,\n        _b = _a.groupKey,\n        groupKey = _b === void 0 ? new Date().getTime() + Math.floor(Math.random() * 1000) : _b;\n\n    if (this._isProcessing() || elements.length === 0) {\n      return;\n    }\n\n    var items = ItemManager.toItems($(elements, true), groupKey);\n\n    this._insertItems({\n      items: items,\n      isAppend: isAppend,\n      hasChildren: hasChildren,\n      groupKey: groupKey\n    });\n  };\n\n  __proto._insertItems = function (_a) {\n    var items = _a.items,\n        isAppend = _a.isAppend,\n        hasChildren = _a.hasChildren,\n        _b = _a.groupKey,\n        groupKey = _b === void 0 ? new Date().getTime() + Math.floor(Math.random() * 1000) : _b;\n\n    if (!items.length) {\n      return;\n    }\n\n    var group = this._itemManager[isAppend ? \"appendGroup\" : \"prependGroup\"]({\n      groupKey: groupKey,\n      items: items\n    });\n\n    if (!isAppend) {\n      var infinite = this._infinite;\n\n      var _c = infinite.getCursors(),\n          startCursor = _c[0],\n          endCursor = _c[1];\n\n      infinite.setCursor(\"start\", startCursor + 1);\n      infinite.setCursor(\"end\", endCursor + 1);\n    }\n\n    this._postLayout({\n      fromCache: false,\n      groups: [group],\n      items: group.items,\n      newItems: group.items,\n      isAppend: isAppend,\n      hasChildren: hasChildren,\n      isTrusted: false\n    });\n  }; // add items, and remove items for recycling\n\n\n  __proto._recycle = function (ranges) {\n    var _this = this;\n\n    var _a = this.options,\n        useRecycle = _a.useRecycle,\n        renderExternal = _a.renderExternal;\n\n    if (!useRecycle) {\n      return false;\n    }\n\n    var isRecycle = false;\n    ranges.forEach(function (_a) {\n      var start = _a.start,\n          end = _a.end;\n\n      if (start === -1 || end === -1 || end < start) {\n        return;\n      }\n\n      var items = _this._itemManager.pluck(\"items\", start, end);\n\n      isRecycle = isRecycle || items.some(function (item) {\n        return item.mounted;\n      });\n      items.forEach(function (item) {\n        item.mounted = false;\n      });\n\n      if (!renderExternal) {\n        DOMRenderer.removeItems(items);\n      }\n    });\n\n    if (isRecycle) {\n      this._requestGroups = [];\n      this.trigger(\"render\", {\n        next: function next() {}\n      });\n    }\n\n    return isRecycle;\n  };\n\n  __proto._renderLoading = function (userStyle) {\n    if (userStyle === void 0) {\n      userStyle = this._status.loadingStyle;\n    }\n\n    if (!this.isLoading()) {\n      return;\n    }\n\n    var isAppend = this._getLoadingStatus() === LOADING_APPEND;\n    var el = this._loadingBar[isAppend ? \"append\" : \"prepend\"];\n\n    if (!el) {\n      return;\n    }\n\n    var style = assign({\n      position: \"absolute\"\n    }, userStyle);\n\n    for (var property in style) {\n      el.style[property] = style[property];\n    }\n\n    this._status.loadingSize = this.options.horizontal ? outerWidth(el) : outerHeight(el);\n    var posName = this.options.horizontal ? \"left\" : \"top\";\n\n    if (!(posName in style)) {\n      var pos = isAppend ? this._getEdgeValue(\"end\") : this._getEdgeValue(\"start\") - this._status.loadingSize;\n      el.style[posName] = pos + \"px\";\n    }\n  };\n\n  __proto._updateItem = function (item) {\n    if (item && item.el) {\n      item.content = item.el.outerHTML;\n      !this.options.isEqualSize && resetSize(item);\n\n      this._renderer.updateSize([item]);\n\n      return true;\n    }\n\n    return false;\n  };\n\n  __proto._setScrollPos = function (pos) {\n    this._watcher.setScrollPos(this._watcher.getContainerOffset() + pos);\n  };\n\n  __proto._scrollTo = function (pos) {\n    this._watcher.scrollTo(this._watcher.getContainerOffset() + pos);\n  };\n\n  __proto._postCache = function (_a) {\n    var cache = _a.cache,\n        isAppend = _a.isAppend,\n        _b = _a.isTrusted,\n        isTrusted = _b === void 0 ? true : _b;\n    var isConstantSize = this.options.isConstantSize;\n    var items = ItemManager.pluck(cache, \"items\");\n    var fromCache = true;\n    var newItems = items.filter(function (item) {\n      if (!item.orgSize || !item.orgSize.width) {\n        fromCache = false;\n        return true;\n      }\n\n      return !isConstantSize && item.rect.top < DUMMY_POSITION / 10;\n    });\n    return this._postLayout({\n      fromCache: fromCache,\n      groups: cache,\n      items: items,\n      newItems: newItems,\n      isAppend: isAppend,\n      isTrusted: isTrusted\n    });\n  };\n\n  __proto._postLayout = function (_a) {\n    var _this = this;\n\n    var fromCache = _a.fromCache,\n        groups = _a.groups,\n        _b = _a.items,\n        items = _b === void 0 ? ItemManager.pluck(groups, \"items\") : _b,\n        newItems = _a.newItems,\n        isAppend = _a.isAppend,\n        hasChildren = _a.hasChildren,\n        isTrusted = _a.isTrusted;\n\n    this._process(PROCESSING);\n\n    if (!groups.length) {\n      return;\n    }\n\n    var renderExternal = this.options.renderExternal;\n    var renderer = this._renderer;\n    var callbackComponent = new Component();\n\n    var _next = function next() {\n      items.forEach(function (item) {\n        item.mounted = true;\n      });\n\n      _this._renderManager.render(callbackComponent, groups, newItems, isAppend).on(\"renderComplete\", function (_a) {\n        var start = _a.start,\n            end = _a.end;\n\n        _this._setCursor(start, end);\n      }).on(\"imageError\", function (e) {\n        /**\n         * This event is fired when an error occurs in the image.\n         * @ko 이미지 로드에 에러가 날 때 발생하는 이벤트.\n         * @event eg.InfiniteGrid#imageError\n         * @param {eg.InfiniteGrid.IErrorCallbackOptions} e The object of data to be sent to an event <ko>이벤트에 전달되는 데이터 객체</ko>\n         * @example\n        ig.on(\"imageError\", e => {\n        e.remove();\n        e.removeItem();\n        e.replace(\"http://...jpg\");\n        e.replace(imageElement);\n        e.replaceItem(\"item html\");\n        });\n        */\n        _this.trigger(\"imageError\", assign(e, {\n          element: e.item.el\n        }));\n      }).on(\"layoutComplete\", function (_a) {\n        var layoutItems = _a.items;\n\n        _this._process(PROCESSING, false);\n\n        _this._onLayoutComplete({\n          items: layoutItems,\n          isAppend: isAppend,\n          fromCache: fromCache,\n          isTrusted: isTrusted,\n          useRecycle: false\n        });\n      }).on(\"finish\", function (_a) {\n        var remove = _a.remove,\n            layout = _a.layout;\n        remove.forEach(function (el) {\n          return _this.remove(el, false);\n        });\n\n        if (layout) {\n          _this.layout(false);\n        } else if (!_this.isProcessing() && _this.options.useRecycle) {\n          var scroller = _this._watcher;\n          var scrollPos = scroller.getScrollPos();\n\n          _this._infinite.recycle(scrollPos, isAppend);\n        }\n      });\n    };\n\n    if (!hasChildren) {\n      if (renderExternal) {\n        if (items.every(function (item) {\n          return item.mounted;\n        })) {\n          _next();\n        } else {\n          this._requestGroups = groups;\n          this.trigger(\"render\", {\n            next: function next() {\n              !hasChildren && DOMRenderer.renderItems(items);\n\n              _next();\n            }\n          });\n        }\n\n        return callbackComponent;\n      } else {\n        // If container has children, it does not render first.\n        renderer.createAndInsert(items, isAppend);\n      }\n    }\n\n    _next();\n\n    return callbackComponent;\n  }; // called by visible\n\n\n  __proto._requestAppend = function (_a) {\n    var _this = this;\n\n    var cache = _a.cache;\n\n    if (this._isProcessing()) {\n      return;\n    }\n\n    if (cache && cache.length) {\n      this._postCache({\n        cache: cache,\n        isAppend: true\n      });\n    } else {\n      /**\n       * This event is fired when a card element must be added at the bottom or right of a layout because there is no card to be displayed on screen when a user scrolls near bottom or right.\n       * @ko 카드 엘리먼트가 레이아웃의 아래나 오른쪽에 추가돼야 할 때 발생하는 이벤트. 사용자가 아래나 오른쪽으로 스크롤해서 화면에 표시될 카드가 없을 때 발생한다\n       * @event eg.InfiniteGrid#append\n       * @param {Object} param The object of data to be sent to an event <ko>이벤트에 전달되는 데이터 객체</ko>\n       * @param {String|Number} groupKey The group key of the first group visible on the screen <ko>화면에 보여지는 마지막 그룹의 그룹키</ko>\n       * @param {Boolean} param.isTrusted Returns true if an event was generated by the user action, or false if it was caused by a script or API call <ko>사용자의 액션에 의해 이벤트가 발생하였으면 true, 스크립트나 API호출에 의해 발생하였을 경우에는 false를 반환한다.</ko>\n       * @param {Function} param.startLoading Start loading for append loading data. <ko> 뒷쪽에 추가되는 데이터 로딩을 시작한다. </ko>\n       * @param {Object} param.startLoading.userStyle The custom style to apply to this loading bar for start. <ko> 로딩을 시작할 때 로딩 바에 적용될 사용자 스타일 </ko>\n       * @param {Function} param.endLoading End loading after startLoading() for append/prepend loading data. <ko>데이터 로딩을 위해 append/prepend startLoading() 호출 이후 로딩을 끝낸다.</ko>\n       * @param {Object} param.endLoading.userStyle The custom style to apply to this loading bar for start. <ko> 로딩이 끝날 때 로딩 바에 적용될 사용자 스타일 </ko>\n       */\n      this.trigger(\"append\", {\n        isTrusted: true,\n        groupKey: this.getGroupKeys().pop() || \"\",\n        startLoading: function startLoading(userStyle) {\n          _this.startLoading(true, userStyle);\n        },\n        endLoading: function endLoading(userStyle) {\n          _this.endLoading(userStyle);\n        }\n      });\n    }\n  }; // called by visible\n\n\n  __proto._requestPrepend = function (_a) {\n    var _this = this;\n\n    var cache = _a.cache;\n\n    this._fit(this.options.useFit || !cache || !cache.length);\n\n    if (this._isProcessing()) {\n      return;\n    }\n\n    if (cache && cache.length) {\n      this._postCache({\n        cache: cache,\n        isAppend: false\n      });\n    } else {\n      /**\n       * This event is fired when a card element must be added at the top or left of a layout because there is no card to be displayed on screen when a user scrolls near top or left.\n       * @ko 카드가 레이아웃의 위나 왼쪽에 추가돼야 할 때 발생하는 이벤트. 사용자가 위나 왼쪽으로 스크롤해서 화면에 표시될 카드가 없을 때 발생한다.\n       * @event eg.InfiniteGrid#prepend\n       * @param {Object} param The object of data to be sent to an event <ko>이벤트에 전달되는 데이터 객체</ko>\n       * @param {String|Number} groupKey The group key of the first group visible on the screen <ko>화면에 보여지는 첫번째 그룹의 그룹키</ko>\n       * @param {Boolean} param.isTrusted Returns true if an event was generated by the user action, or false if it was caused by a script or API call <ko>사용자의 액션에 의해 이벤트가 발생하였으면 true, 스크립트나 API호출에 의해 발생하였을 경우에는 false를 반환한다.</ko>\n       * @param {Function} param.startLoading Start loading for prepend loading data. <ko> 앞쪽에 추가되는 데이터 로딩을 시작한다. </ko>\n       * @param {Object} param.startLoading.userStyle The custom style to apply to this loading bar for start. <ko> 로딩을 시작할 때 로딩 바에 적용될 사용자 스타일 </ko>\n       * @param {Function} param.endLoading End loading after startLoading() for append/prepend loading data. <ko>데이터 로딩을 위해 append/prepend startLoading() 호출 이후 로딩을 끝낸다.</ko>\n       * @param {Object} param.endLoading.userStyle The custom style to apply to this loading bar for start. <ko> 로딩이 끝날 때 로딩 바에 적용될 사용자 스타일 </ko>\n       */\n      this.trigger(\"prepend\", {\n        isTrusted: true,\n        groupKey: this.getGroupKeys().shift(),\n        startLoading: function startLoading(userStyle) {\n          _this.startLoading(false, userStyle);\n        },\n        endLoading: function endLoading(userStyle) {\n          _this.endLoading(userStyle);\n        }\n      });\n    }\n  };\n\n  __proto._onResize = function () {\n    this.layout(true);\n  };\n\n  __proto._setCursor = function (start, end) {\n    var infinite = this._infinite;\n\n    var _a = infinite.getCursors(),\n        startCursor = _a[0],\n        endCursor = _a[1];\n\n    infinite.setCursor(\"start\", start);\n    infinite.setCursor(\"end\", end);\n\n    var isRecycle = this._recycle([{\n      start: startCursor,\n      end: start - 1\n    }, {\n      start: end + 1,\n      end: endCursor\n    }]);\n\n    if (!isRecycle) {\n      this._requestGroups = [];\n      this.trigger(\"render\", {\n        next: function next() {}\n      });\n    }\n  };\n\n  __proto._onCheck = function (_a) {\n    var isForward = _a.isForward,\n        scrollPos = _a.scrollPos,\n        horizontal = _a.horizontal,\n        orgScrollPos = _a.orgScrollPos;\n    /**\n     * This event is fired when the user scrolls.\n     * @ko 사용자가 스크롤 할 경우 발생하는 이벤트.\n     * @event eg.InfiniteGrid#change\n     * @param {Object} param The object of data to be sent to an event <ko>이벤트에 전달되는 데이터 객체</ko>\n     * @param {Boolean} param.isForward Indicates whether the scroll progression direction is forward or backword. <ko>스크롤 진행방향이 앞쪽으로 진행하는 지, 뒤쪽으로 진행하는지를 나타낸다.</ko>\n     * @param {Number} param.scrollPos Current scroll position value relative to the infiniteGrid container element. <ko>infiniteGrid 컨테이너 엘리먼트 기준의 현재 스크롤 위치값</ko>\n     * @param {Boolean} param.orgScrollPos Current position of the scroll <ko>현재 스크롤 위치값</ko>\n     * @param {Boolean} param.isTrusted Returns true if an event was generated by the user action, or false if it was caused by a script or API call <ko>사용자의 액션에 의해 이벤트가 발생하였으면 true, 스크립트나 API호출에 의해 발생하였을 경우에는 false를 반환한다.</ko>\n     * @param {Boolean} options.horizontal Direction of the scroll movement (true: horizontal, false: vertical) <ko>스크롤 이동 방향 (true 가로방향, false 세로방향</ko>\n     */\n\n    this.trigger(\"change\", {\n      isForward: isForward,\n      horizontal: horizontal,\n      scrollPos: scrollPos,\n      orgScrollPos: orgScrollPos\n    });\n\n    this._infinite.scroll(scrollPos);\n  };\n\n  __proto._onLayoutComplete = function (_a) {\n    var _this = this;\n\n    var items = _a.items,\n        isAppend = _a.isAppend,\n        _b = _a.isTrusted,\n        isTrusted = _b === void 0 ? false : _b,\n        _c = _a.useRecycle,\n        useRecycle = _c === void 0 ? this.options.useRecycle : _c,\n        _d = _a.fromCache,\n        fromCache = _d === void 0 ? false : _d,\n        _e = _a.isLayout,\n        isLayout = _e === void 0 ? false : _e;\n\n    var viewSize = this._renderer.getViewSize();\n\n    if (!isAppend) {\n      this._fit();\n    } else {\n      this.isLoading() && this._renderLoading();\n    }\n\n    var watcher = this._watcher;\n    var scrollPos = watcher.getScrollPos(); // recycle after _fit beacause prepend and append are occured simultaneously by scroll.\n\n    if (!isLayout && useRecycle && !this.isLoading()) {\n      this._infinite.recycle(scrollPos, isAppend);\n    }\n\n    var size = this._getEdgeValue(\"end\");\n\n    if (isAppend) {\n      this._setContainerSize(size + this._status.loadingSize || 0);\n\n      if (typeof scrollPos === \"number\" && scrollPos > 0) {\n        !IS_IOS && this._scrollTo(scrollPos);\n      }\n    }\n    /**\n     * This event is fired when layout is successfully arranged through a call to the append(), prepend(), or layout() method.\n     * @ko 레이아웃 배치가 완료됐을 때 발생하는 이벤트. append() 메서드나 prepend() 메서드, layout() 메서드 호출 후 카드의 배치가 완료됐을 때 발생한다\n     * @event eg.InfiniteGrid#layoutComplete\n     *\n     * @param {Object} param The object of data to be sent to an event <ko>이벤트에 전달되는 데이터 객체</ko>\n     * @param {Array} param.target Rearranged card elements<ko>재배치된 카드 엘리먼트들</ko>\n     * @param {Boolean} param.fromCache Check whether these items are cache or not <ko>해당 아이템들이 캐시인지 아닌지 확인한다.</ko>\n     * @param {Boolean} param.isLayout Returns true if this is an event called by resize event or layout method. Returns false if this is an event called by adding an item. <ko>해당 이벤트가 리사이즈 이벤트 또는 layout() 메서드를 통해 호출됐으면 true, 아이템 추가로 호출됐으면 false를 반환한다.</ko>\n     * @param {Boolean} param.isAppend Checks whether the append() method is used to add a card element. It returns true even though the layoutComplete event is fired after the layout() method is called. <ko>카드 엘리먼트가 append() 메서드로 추가됐는지 확인한다. layout() 메서드가 호출된 후 layoutComplete 이벤트가 발생해도 'true'를 반환한다.</ko>\n     * @param {Boolean} param.isScroll Checks whether scrolling has occurred after the append(), prepend(), ..., etc method is called <ko>append, prend 등 호출 후 스크롤이 생겼는지 확인한다.</ko>\n     * @param {Number} param.scrollPos Current scroll position value relative to the infiniteGrid container element. <ko>infiniteGrid 컨테이너 엘리먼트 기준의 현재 스크롤 위치값</ko>\n     * @param {Number} param.orgScrollPos Current position of the scroll <ko>현재 스크롤 위치값</ko>\n     * @param {Number} param.size The size of container element <ko>컨테이너 엘리먼트의 크기</ko>\n     * @param {Boolean} param.isTrusted Returns true if an event was generated by the user action, or false if it was caused by a script or API call <ko>사용자의 액션에 의해 이벤트가 발생하였으면 true, 스크립트나 API호출에 의해 발생하였을 경우에는 false를 반환한다.</ko>\n     * @param {Function} param.endLoading End loading after startLoading() for append/prepend loading data. <ko>데이터 로딩을 위해 append/prepend startLoading() 호출 이후 로딩을 끝낸다.</ko>\n     * @param {Object} param.endLoading.userStyle The custom style to apply to this loading bar for start. <ko> 로딩이 끝날 때 로딩 바에 적용될 사용자 스타일 </ko>\n     */\n\n\n    this.trigger(\"layoutComplete\", {\n      target: items.concat(),\n      isAppend: !!isAppend,\n      isTrusted: isTrusted,\n      fromCache: fromCache,\n      isLayout: isLayout,\n      isScroll: viewSize < watcher.getContainerOffset() + size,\n      scrollPos: scrollPos,\n      orgScrollPos: watcher.getOrgScrollPos(),\n      size: size,\n      endLoading: function endLoading(userStyle) {\n        _this.endLoading(userStyle);\n      }\n    });\n\n    this._infinite.scroll(scrollPos);\n  };\n\n  __proto._reset = function () {\n    this._status = {\n      processingStatus: IDLE,\n      loadingSize: 0,\n      loadingStyle: {}\n    };\n  };\n  /**\n   * Version info string\n   * @ko 버전정보 문자열\n   * @name VERSION\n   * @static\n   * @type {String}\n   * @example\n   * eg.InfiniteGrid.VERSION;  // ex) 3.3.3\n   * @memberof eg.InfiniteGrid\n   */\n\n\n  InfiniteGrid.VERSION = \"3.6.3\";\n  return InfiniteGrid;\n}(Component);\n\nvar START = ALIGN.START,\n    CENTER = ALIGN.CENTER,\n    END = ALIGN.END,\n    JUSTIFY = ALIGN.JUSTIFY;\n/**\n * @classdesc The GridLayout is a layout that stacks cards with the same width as a stack of bricks. Adjust the width of all images to the same size, find the lowest height column, and insert a new card.\n * @ko GridLayout는 벽돌을 쌓아 올린 모양처럼 동일한 너비를 가진 카드를 쌓는 레이아웃이다. 모든 이미지의 너비를 동일한 크기로 조정하고, 가장 높이가 낮은 열을 찾아 새로운 이미지를 삽입한다. 따라서 배치된 카드 사이에 빈 공간이 생기지는 않지만 배치된 레이아웃의 아래쪽은 울퉁불퉁해진다.\n * @class eg.InfiniteGrid.GridLayout\n * @param {Object} [options] The option object of eg.InfiniteGrid.GridLayout module <ko>eg.InfiniteGrid.GridLayout 모듈의 옵션 객체</ko>\n * @param {String} [options.margin=0] Margin used to create space around items <ko>아이템들 사이의 공간</ko>\n * @param {Boolean} [options.horizontal=false] Direction of the scroll movement (false: vertical, true: horizontal) <ko>스크롤 이동 방향 (false: 세로방향, true: 가로방향)</ko>\n * @param {Boolean} [options.align=START] Align of the position of the items (START, CENTER, END, JUSTIFY) <ko>아이템들의 위치의 정렬 (START, CENTER, END, JUSTIFY)</ko>\n * @param {Boolean} [options.itemSize=0] The size of the items. If it is 0, it is calculated as the size of the first item in items. <ko> 아이템의 사이즈. 만약 아이템 사이즈가 0이면, 아이템들의 첫번째 아이템의 사이즈로 계산이 된다. </ko>\n * @example\n```\n<script>\nvar ig = new eg.InfiniteGrid(\"#grid\". {\n  horizontal: true,\n});\n\nig.setLayout(eg.InfiniteGrid.GridLayout, {\n  margin: 10,\n  align: \"start\",\n  itemSize: 200\n});\n\n// or\n\nvar layout = new eg.InfiniteGrid.GridLayout({\n  margin: 10,\n  align: \"center\",\n  itemSize: 200,\n  horizontal: true,\n});\n\n</script>\n```\n **/\n\nvar GridLayout = /*#__PURE__*/function () {\n  function GridLayout(options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    this.options = assignOptions({\n      margin: 0,\n      horizontal: false,\n      align: START,\n      itemSize: 0\n    }, options);\n    this._size = 0;\n    this._columnSize = 0;\n    this._columnLength = 0;\n    this._style = getStyleNames(this.options.horizontal);\n  }\n  /**\n   * Adds items at the bottom of a outline.\n   * @ko 아이템들을 아웃라인 아래에 추가한다.\n   * @method eg.InfiniteGrid.GridLayout#append\n   * @param {Array} items Array of items to be layouted <ko>레이아웃할 아이템들의 배열</ko>\n   * @param {Array} [outline=[]] Array of outline points to be reference points <ko>기준점이 되는 아웃라인 점들의 배열</ko>\n   * @return {Object} Layouted items and outline of start and end <ko> 레이아웃이 된 아이템과 시작과 끝의 아웃라인이 담긴 정보</ko>\n   * @example\n   * layout.prepend(items, [100, 200, 300, 400]);\n   */\n\n\n  var __proto = GridLayout.prototype;\n\n  __proto.append = function (items, outline, cache) {\n    return this._insert(items, outline, true, cache);\n  };\n  /**\n   * Adds items at the top of a outline.\n   * @ko 아이템을 아웃라인 위에 추가한다.\n   * @method eg.InfiniteGrid.GridLayout#prepend\n   * @param {Array} items Array of items to be layouted <ko>레이아웃할 아이템들의 배열</ko>\n   * @param {Array} [outline=[]] Array of outline points to be reference points <ko>기준점이 되는 아웃라인 점들의 배열</ko>\n   * @return {Object} Layouted items and outline of start and end <ko> 레이아웃이 된 아이템과 시작과 끝의 아웃라인이 담긴 정보</ko>\n   * @example\n   * layout.prepend(items, [100, 200, 300, 400]);\n   */\n\n\n  __proto.prepend = function (items, outline, cache) {\n    return this._insert(items, outline, false, cache);\n  };\n  /**\n   * Adds items of groups at the bottom of a outline.\n   * @ko 그룹들의 아이템들을 아웃라인 아래에 추가한다.\n   * @method eg.InfiniteGrid.GridLayout#layout\n   * @param {Array} groups Array of groups to be layouted <ko>레이아웃할 그룹들의 배열</ko>\n   * @param {Array} outline Array of outline points to be reference points <ko>기준점이 되는 아웃라인 점들의 배열</ko>\n   * @return {eg.InfiniteGrid.GridLayout} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n   * layout.layout(groups, [100, 200, 300, 400]);\n   */\n\n\n  __proto.layout = function (groups, outline) {\n    var _this = this;\n\n    if (groups === void 0) {\n      groups = [];\n    }\n\n    if (outline === void 0) {\n      outline = [];\n    }\n\n    var firstItem = groups.length && groups[0].items.length && groups[0].items[0];\n    this.checkColumn(firstItem); // if outlines' length and columns' length are now same, re-caculate outlines.\n\n    var startOutline;\n\n    if (outline.length !== this._columnLength) {\n      var pos = outline.length === 0 ? 0 : Math.min.apply(Math, outline); // re-layout items.\n\n      startOutline = fill(new Array(this._columnLength), pos);\n    } else {\n      startOutline = outline.slice();\n    }\n\n    groups.forEach(function (group) {\n      var items = group.items;\n\n      var result = _this._layout(items, startOutline, true);\n\n      group.outlines = result;\n      startOutline = result.end;\n    });\n    return this;\n  };\n  /**\n   * Set the viewport size of the layout.\n   * @ko 레이아웃의 가시 사이즈를 설정한다.\n   * @method eg.InfiniteGrid.GridLayout#setSize\n   * @param {Number} size The viewport size of container area where items are added to a layout <ko>레이아웃에 아이템을 추가하는 컨테이너 영역의 가시 사이즈</ko>\n   * @return {eg.InfiniteGrid.GridLayout} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n   * layout.setSize(800);\n   */\n\n\n  __proto.setSize = function (size) {\n    this._size = size;\n    return this;\n  };\n\n  __proto.checkColumn = function (item) {\n    var _a = this.options,\n        itemSize = _a.itemSize,\n        margin = _a.margin,\n        horizontal = _a.horizontal;\n    var sizeName = horizontal ? \"height\" : \"width\";\n    var columnSize = Math.floor(itemSize || item && item.size[sizeName] || 0) || 0;\n    this._columnSize = columnSize;\n\n    if (!columnSize) {\n      this._columnLength = 1;\n      return;\n    }\n\n    this._columnLength = Math.max(Math.floor((this._size + margin) / (columnSize + margin)), 1);\n  };\n\n  __proto._layout = function (items, outline, isAppend) {\n    var _a;\n\n    var length = items.length;\n    var margin = this.options.margin;\n    var align = this.options.align;\n    var style = this._style;\n    var size1Name = style.size1;\n    var size2Name = style.size2;\n    var pos1Name = style.startPos1;\n    var pos2Name = style.startPos2;\n    var columnSize = this._columnSize;\n    var columnLength = this._columnLength;\n    var size = this._size;\n    var viewDist = size - (columnSize + margin) * columnLength + margin;\n    var pointCaculateName = isAppend ? \"min\" : \"max\";\n    var indexCaculateName = isAppend ? \"indexOf\" : \"lastIndexOf\";\n    var startOutline = outline.slice();\n    var endOutline = outline.slice();\n\n    for (var i = 0; i < length; ++i) {\n      var point = Math[pointCaculateName].apply(Math, endOutline) || 0;\n      var index = endOutline[indexCaculateName](point);\n      var item = items[isAppend ? i : length - 1 - i];\n      var itemSize = item.size;\n\n      if (!itemSize) {\n        continue;\n      }\n\n      var size1 = itemSize[size1Name];\n      var size2 = itemSize[size2Name];\n      var pos1 = isAppend ? point : point - margin - size1;\n      var endPos1 = pos1 + size1 + margin;\n\n      if (index === -1) {\n        index = 0;\n      }\n\n      var pos2 = (columnSize + margin) * index; // ALIGN\n\n      if (align === CENTER) {\n        pos2 += viewDist / 2;\n      } else if (align === END) {\n        pos2 += viewDist + columnSize - size2;\n      } else if (align === JUSTIFY) {\n        if (columnLength <= 1) {\n          pos2 += viewDist / 2;\n        } else {\n          pos2 = (size - columnSize) / (columnLength - 1) * index;\n        }\n      } // tetris\n\n\n      item.rect = (_a = {}, _a[pos1Name] = pos1, _a[pos2Name] = pos2, _a);\n      item.column = index;\n      endOutline[index] = isAppend ? endPos1 : pos1;\n    }\n\n    if (!isAppend) {\n      items.sort(function (a, b) {\n        var item1pos1 = a.rect[pos1Name];\n        var item1pos2 = a.rect[pos2Name];\n        var item2pos1 = b.rect[pos1Name];\n        var item2pos2 = b.rect[pos2Name];\n\n        if (item1pos1 - item2pos1) {\n          return item1pos1 - item2pos1;\n        }\n\n        return item1pos2 - item2pos2;\n      });\n    } // if append items, startOutline is low, endOutline is high\n    // if prepend items, startOutline is high, endOutline is low\n\n\n    return {\n      start: isAppend ? startOutline : endOutline,\n      end: isAppend ? endOutline : startOutline\n    };\n  };\n\n  __proto._insert = function (items, outline, isAppend, cache) {\n    if (items === void 0) {\n      items = [];\n    }\n\n    if (outline === void 0) {\n      outline = [];\n    }\n\n    var clone = cache ? items : cloneItems(items);\n    var startOutline = outline;\n\n    if (!this._columnLength) {\n      this.checkColumn(items[0]);\n    }\n\n    if (outline.length !== this._columnLength) {\n      startOutline = fill(new Array(this._columnLength), outline.length ? Math[isAppend ? \"min\" : \"max\"].apply(Math, outline) || 0 : 0);\n    }\n\n    var result = this._layout(clone, startOutline, isAppend);\n\n    return {\n      items: clone,\n      outlines: result\n    };\n  };\n\n  return GridLayout;\n}();\n/*\nFrame\n[\n[1, 1, 1, 1, 1],\n[0, 0, 2, 2, 2],\n[0, 0, 2, 2, 2],\n[3, 4, 5, 5, 5],\n]\n*/\n\n\nfunction disableFrame(frame, type, top, left, width, height) {\n  for (var i = top; i < top + height; ++i) {\n    for (var j = left; j < left + width; ++j) {\n      if (type !== frame[i][j]) {\n        continue;\n      }\n\n      frame[i][j] = 0;\n    }\n  }\n}\n\nfunction searchShapeInFrame(frame, type, top, left, width, height) {\n  var size = {\n    left: left,\n    top: top,\n    type: type,\n    width: 1,\n    height: 1\n  };\n\n  for (var i = left; i < width; ++i) {\n    if (frame[top][i] === type) {\n      size.width = i - left + 1;\n      continue;\n    }\n\n    break;\n  }\n\n  for (var i = top; i < height; ++i) {\n    if (frame[i][left] === type) {\n      size.height = i - top + 1;\n      continue;\n    }\n\n    break;\n  } // After finding the shape, it will not find again.\n\n\n  disableFrame(frame, type, top, left, size.width, size.height);\n  return size;\n}\n\nfunction getShapes(frame) {\n  var height = frame.length;\n  var width = height ? frame[0].length : 0;\n  var shapes = [];\n\n  for (var i = 0; i < height; ++i) {\n    for (var j = 0; j < width; ++j) {\n      var type = frame[i][j];\n\n      if (!type) {\n        continue;\n      } // Separate shapes with other numbers.\n\n\n      shapes.push(searchShapeInFrame(frame, type, i, j, width, height));\n    }\n  }\n\n  shapes.sort(function (a, b) {\n    return a.type < b.type ? -1 : 1;\n  });\n  return {\n    shapes: shapes,\n    width: width,\n    height: height\n  };\n}\n/**\n * @classdesc FrameLayout is a layout that allows you to place cards in a given frame. It is a layout that corresponds to a level intermediate between the placement of the image directly by the designer and the layout using the algorithm.\n * @ko FrameLayout은 주어진 프레임에 맞춰 카드를 배치하는 레이아웃입니다. 디자이너가 직접 이미지를 배치하는 것과 알고리즘을 사용한 배치의 중간 정도 수준에 해당하는 레이아웃이다.\n * @class eg.InfiniteGrid.FrameLayout\n * @param {Object} [options] The option object of eg.InfiniteGrid.FrameLayout module <ko>eg.InfiniteGrid.FrameLayout 모듈의 옵션 객체</ko>\n * @param {String} [options.margin=0] Margin used to create space around items <ko>아이템들 사이의 공간</ko>\n * @param {Boolean} [options.horizontal=false] Direction of the scroll movement (false: vertical, true: horizontal) <ko>스크롤 이동 방향 (false: 세로방향, true: 가로방향)</ko>\n * @param {Boolean} [options.itemSize=0] The size of the items. If it is 0, it is calculated as the size of the first item in items. <ko> 아이템의 사이즈. 만약 아이템 사이즈가 0이면, 아이템들의 첫번째 아이템의 사이즈로 계산이 된다. </ko>\n * @param {Boolean} [options.frame=[]] The size of the items. If it is 0, it is calculated as the size of the first item in items. <ko> 아이템의 사이즈. 만약 아이템 사이즈가 0이면, 아이템들의 첫번째 아이템의 사이즈로 계산이 된다. </ko>\n * @param {Boolean} [options.frameFill=true] Make sure that the frame can be attached after the previous frame. <ko> 다음 프레임이 전 프레임에 이어 붙일 수 있는지 있는지 확인한다. </ko>\n * @example\n```\n<script>\nvar ig = new eg.InfiniteGrid(\"#grid\". {\n  horizontal: true,\n});\n\nig.setLayout(eg.InfiniteGrid.FrameLayout, {\n  margin: 10,\n  itemSize: 200,\n  frame: [\n    [1, 1, 1, 1, 1],\n    [0, 0, 2, 2, 2],\n    [0, 0, 2, 2, 2],\n    [3, 4, 5, 5, 5],\n  ],\n});\n\n// or\n\nvar layout = new eg.InfiniteGrid.FrameLayout({\n  margin: 10,\n  itemSize: 200,\n  horizontal: true,\n  frame: [\n    [1, 1, 1, 1, 1],\n    [0, 0, 2, 2, 2],\n    [0, 0, 2, 2, 2],\n    [3, 4, 5, 5, 5],\n  ],\n});\n\n</script>\n```\n **/\n\n\nvar FrameLayout = /*#__PURE__*/function () {\n  function FrameLayout(options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    this.options = assignOptions({\n      margin: 0,\n      horizontal: false,\n      itemSize: 0,\n      frame: [],\n      frameFill: true\n    }, options);\n    var frame = this.options.frame.map(function (row) {\n      return row.slice();\n    });\n    this._itemSize = this.options.itemSize || 0; // divide frame into shapes.\n\n    this._shapes = getShapes(frame);\n    this._size = 0;\n    this._style = getStyleNames(this.options.horizontal);\n  }\n  /**\n   * Adds items of groups at the bottom of a outline.\n   * @ko 그룹들의 아이템들을 아웃라인 아래에 추가한다.\n   * @method eg.InfiniteGrid.FrameLayout#layout\n   * @param {Array} groups Array of groups to be layouted <ko>레이아웃할 그룹들의 배열</ko>\n   * @param {Array} outline Array of outline points to be reference points <ko>기준점이 되는 아웃라인 점들의 배열</ko>\n   * @return {eg.InfiniteGrid.FrameLayout} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n   * layout.layout(groups, [100, 200, 300, 400]);\n   */\n\n\n  var __proto = FrameLayout.prototype;\n\n  __proto.layout = function (groups, outline) {\n    if (groups === void 0) {\n      groups = [];\n    }\n\n    if (outline === void 0) {\n      outline = [];\n    }\n\n    var length = groups.length;\n    var point = outline;\n\n    for (var i = 0; i < length; ++i) {\n      var group = groups[i];\n\n      var outlines = this._layout(group.items, point, true);\n\n      group.outlines = outlines;\n      point = outlines.end;\n    }\n\n    return this;\n  };\n  /**\n   * Set the viewport size of the layout.\n   * @ko 레이아웃의 가시 사이즈를 설정한다.\n   * @method eg.InfiniteGrid.FrameLayout#setSize\n   * @param {Number} size The viewport size of container area where items are added to a layout <ko>레이아웃에 아이템을 추가하는 컨테이너 영역의 가시 사이즈</ko>\n   * @return {eg.InfiniteGrid.FrameLayout} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n   * layout.setSize(800);\n   */\n\n\n  __proto.setSize = function (size) {\n    this._size = size;\n    return this;\n  };\n  /**\n   * Adds items at the bottom of a outline.\n   * @ko 아이템들을 아웃라인 아래에 추가한다.\n   * @method eg.InfiniteGrid.FrameLayout#append\n   * @param {Array} items Array of items to be layouted <ko>레이아웃할 아이템들의 배열</ko>\n   * @param {Array} [outline=[]] Array of outline points to be reference points <ko>기준점이 되는 아웃라인 점들의 배열</ko>\n   * @return {Object} Layouted items and outline of start and end <ko> 레이아웃이 된 아이템과 시작과 끝의 아웃라인이 담긴 정보</ko>\n   * @example\n   * layout.prepend(items, [100]);\n   */\n\n\n  __proto.append = function (items, outline, cache) {\n    return this._insert(items, outline, true, cache);\n  };\n  /**\n   * Adds items at the top of a outline.\n   * @ko 아이템을 아웃라인 위에 추가한다.\n   * @method eg.InfiniteGrid.FrameLayout#prepend\n   * @param {Array} items Array of items to be layouted <ko>레이아웃할 아이템들의 배열</ko>\n   * @param {Array} [outline=[]] Array of outline points to be reference points <ko>기준점이 되는 아웃라인 점들의 배열</ko>\n   * @return {Object} Layouted items and outline of start and end <ko> 레이아웃이 된 아이템과 시작과 끝의 아웃라인이 담긴 정보</ko>\n   * @example\n   * layout.prepend(items, [100]);\n   */\n\n\n  __proto.prepend = function (items, outline, cache) {\n    return this._insert(items, outline, false, cache);\n  };\n\n  __proto._getItemSize = function () {\n    this._checkItemSize();\n\n    return this._itemSize;\n  };\n\n  __proto._checkItemSize = function () {\n    if (this.options.itemSize) {\n      this._itemSize = this.options.itemSize;\n      return;\n    }\n\n    var style = this._style;\n    var size = style.size2;\n    var margin = this.options.margin; // if itemSize is not in options, caculate itemSize from size.\n\n    this._itemSize = (this._size + margin) / this._shapes[size] - margin;\n  };\n\n  __proto._layout = function (items, outline, isAppend) {\n    if (outline === void 0) {\n      outline = [];\n    }\n\n    var _a;\n\n    var length = items.length;\n    var style = this._style;\n    var _b = this.options,\n        margin = _b.margin,\n        frameFill = _b.frameFill;\n    var size1Name = style.size1;\n    var size2Name = style.size2;\n    var pos1Name = style.startPos1;\n    var pos2Name = style.startPos2;\n\n    var itemSize = this._getItemSize();\n\n    var isItemObject = _typeof(itemSize) === \"object\";\n    var itemSize2 = isItemObject ? itemSize[size2Name] : itemSize;\n    var itemSize1 = isItemObject ? itemSize[size1Name] : itemSize;\n    var shapesSize = this._shapes[size2Name];\n    var shapes = this._shapes.shapes;\n    var shapesLength = shapes.length;\n    var startOutline = fill(new Array(shapesSize), DUMMY_POSITION);\n    var endOutline = fill(new Array(shapesSize), DUMMY_POSITION);\n    var dist = 0;\n    var end = 0;\n\n    if (!shapesLength) {\n      return {\n        start: outline,\n        end: outline\n      };\n    }\n\n    for (var i = 0; i < length; i += shapesLength) {\n      for (var j = 0; j < shapesLength && i + j < length; ++j) {\n        var item = items[i + j];\n        var shape = shapes[j];\n        var shapePos1 = shape[pos1Name];\n        var shapePos2 = shape[pos2Name];\n        var shapeSize1 = shape[size1Name];\n        var shapeSize2 = shape[size2Name];\n        var pos1 = end - dist + shapePos1 * (itemSize1 + margin);\n        var pos2 = shapePos2 * (itemSize2 + margin);\n        var size1 = shapeSize1 * (itemSize1 + margin) - margin;\n        var size2 = shapeSize2 * (itemSize2 + margin) - margin;\n\n        for (var k = shapePos2; k < shapePos2 + shapeSize2 && k < shapesSize; ++k) {\n          if (startOutline[k] === DUMMY_POSITION) {\n            startOutline[k] = pos1;\n          }\n\n          startOutline[k] = Math.min(startOutline[k], pos1);\n          endOutline[k] = Math.max(endOutline[k], pos1 + size1 + margin);\n        }\n\n        item.rect = (_a = {}, _a[pos1Name] = pos1, _a[pos2Name] = pos2, _a[size1Name] = size1, _a[size2Name] = size2, _a);\n      }\n\n      end = Math.max.apply(Math, endOutline); // check dist once\n\n      if (i !== 0) {\n        continue;\n      } // find & fill empty block\n\n\n      if (!frameFill) {\n        dist = 0;\n        continue;\n      }\n\n      dist = end;\n\n      for (var j = 0; j < shapesSize; ++j) {\n        if (startOutline[j] === DUMMY_POSITION) {\n          continue;\n        } // the dist between frame's end outline and next frame's start outline\n        // expect that next frame's start outline is startOutline[j] + end\n\n\n        dist = Math.min(startOutline[j] + end - endOutline[j], dist);\n      }\n    }\n\n    for (var i = 0; i < shapesSize; ++i) {\n      if (startOutline[i] !== DUMMY_POSITION) {\n        continue;\n      }\n\n      startOutline[i] = Math.max.apply(Math, startOutline);\n      endOutline[i] = startOutline[i];\n    } // The target outline is start outline when type is appending\n\n\n    var targetOutline = isAppend ? startOutline : endOutline;\n    var prevOutlineEnd = outline.length === 0 ? 0 : Math[isAppend ? \"max\" : \"min\"].apply(Math, outline);\n    var prevOutlineDist = isAppend ? 0 : end;\n\n    if (frameFill && outline.length === shapesSize) {\n      prevOutlineDist = -DUMMY_POSITION;\n\n      for (var i = 0; i < shapesSize; ++i) {\n        if (startOutline[i] === endOutline[i]) {\n          continue;\n        } // if appending type is prepend(false), subtract dist from appending group's height.\n\n\n        prevOutlineDist = Math.min(targetOutline[i] + prevOutlineEnd - outline[i], prevOutlineDist);\n      }\n    }\n\n    for (var i = 0; i < shapesSize; ++i) {\n      startOutline[i] += prevOutlineEnd - prevOutlineDist;\n      endOutline[i] += prevOutlineEnd - prevOutlineDist;\n    }\n\n    items.forEach(function (item) {\n      item.rect[pos1Name] += prevOutlineEnd - prevOutlineDist;\n    });\n    return {\n      start: startOutline.map(function (point) {\n        return parseInt(point, 10);\n      }),\n      end: endOutline.map(function (point) {\n        return parseInt(point, 10);\n      })\n    };\n  };\n\n  __proto._insert = function (items, outline, isAppend, cache) {\n    if (items === void 0) {\n      items = [];\n    }\n\n    if (outline === void 0) {\n      outline = [];\n    } // this only needs the size of the item.\n\n\n    var clone = cache ? items : cloneItems(items);\n    return {\n      items: clone,\n      outlines: this._layout(clone, outline, isAppend)\n    };\n  };\n\n  return FrameLayout;\n}();\n\nfunction makeShapeOutline(outline, itemSize, columnLength, isAppend) {\n  var point = Math[isAppend ? \"min\" : \"max\"].apply(Math, outline) || 0;\n\n  if (outline.length !== columnLength) {\n    return fill(new Array(columnLength), 0);\n  }\n\n  return outline.map(function (l) {\n    return Math.floor((l - point) / itemSize);\n  });\n}\n\nfunction getColumn(item) {\n  if (item.column) {\n    return item.column;\n  }\n\n  var column = 1;\n\n  if (item.el) {\n    column = parseInt(item.el.getAttribute(\"data-column\"), 10) || 1;\n  }\n\n  item.column = column;\n  return column;\n}\n/**\n * @classdesc SquareLayout is a layout that places all cards like squares on a checkerboard, and important cards are n times larger. The main card can be enlarged, and then a small card can be placed to naturally show the relationship of the card.\n * @ko SquareLayout은 바둑판처럼 모든 카드를 정사각형으로 배치하고 중요한 카드는 크기를 N배로 키워서 보여주는 레이아웃이다. 주요 카드를 크게 표시하고, 그 다음에 작은 카드를 배치해 자연스럽게 카드의 관계를 나타낼 수 있습니다.\n * @class eg.InfiniteGrid.SquareLayout\n * @extends eg.InfiniteGrid.FrameLayout\n * @param {Object} [options] The option object of eg.InfiniteGrid.SquareLayout module <ko>eg.InfiniteGrid.SquareLayout 모듈의 옵션 객체</ko>\n * @param {String} [options.margin=0] Margin used to create space around items <ko>아이템들 사이의 공간</ko>\n * @param {Boolean} [options.horizontal=false] Direction of the scroll movement (false: vertical, true: horizontal) <ko>스크롤 이동 방향 (false: 세로방향, true: 가로방향)</ko>\n * @param {Boolean} [options.itemSize=0] The size of the items. If it is 0, it is calculated as the size of the first item in items. (priority: `column` > `itemSize` > element's size)<ko> 아이템의 사이즈. 만약 아이템 사이즈가 0이면, 아이템들의 첫번째 아이템의 사이즈로 계산이 된다. (우선순위: `column` > `itemSize` > 엘리먼트의 사이즈) </ko>\n * @param {Boolean} [options.column=0] The number of columns in the layout. If it is 0, the column is returned by `itemSize`.  (priority: `column` > `itemSize` > element's size)<ko> 레이아웃의 열의 개수. 만약 column이 0이면, `itemSize`로 열을 구합니다. (우선순위: `column` > `itemSize` > 엘리먼트의 사이즈) </ko>\n * @example\n```\n<script>\nvar ig = new eg.InfiniteGrid(\"#grid\". {\n    horizontal: true,\n});\n\nig.setLayout(eg.InfiniteGrid.SquareLayout, {\n    margin: 10,\n    itemSize: 200,\n});\n\n// or\n\nvar layout = new eg.InfiniteGrid.SquareLayout({\n    margin: 10,\n    itemSize: 200,\n    horizontal: true,\n});\n\nvar item1 = '<div data-column=\"2\"></div>';\nvar item2 = \"<div></div>\"\nlayout.append([item1, item2]);\n</script>\n```\n **/\n\n\nvar SquareLayout = /*#__PURE__*/function (_super) {\n  __extends(SquareLayout, _super);\n\n  function SquareLayout(options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    return _super.call(this, options) || this;\n  }\n\n  var __proto = SquareLayout.prototype;\n\n  __proto._layout = function (items, outline, isAppend) {\n    if (outline === void 0) {\n      outline = [];\n    }\n\n    if (isAppend === void 0) {\n      isAppend = false;\n    }\n\n    var _a, _b;\n\n    var itemSize = this._getSquareSize(items[0]);\n\n    var margin = this.options.margin;\n    var columnLength = this.options.column || Math.floor((this._size + margin) / (itemSize + margin)) || 1;\n    var length = items.length;\n    var endOutline = makeShapeOutline(outline, Math.floor(itemSize), columnLength, isAppend);\n    var pointCaculateName = isAppend ? \"min\" : \"max\";\n    var shapes = [];\n    var sign = isAppend ? 1 : -1;\n    var style = this._style;\n    var pos1Name = style.startPos1;\n    var pos2Name = style.startPos2;\n\n    for (var i = 0; i < length; ++i) {\n      var point = Math[pointCaculateName].apply(Math, endOutline);\n      var index = endOutline[isAppend ? \"indexOf\" : \"lastIndexOf\"](point);\n      var item = items[i];\n      var columnWidth = item.columnWidth;\n      var column = columnWidth && columnWidth[0] === columnLength && columnWidth[1] || getColumn(item);\n      var columnCount = 1;\n\n      if (column > 1) {\n        for (var j = 1; j < column && (isAppend && index + j < columnLength || !isAppend && index - j >= 0); ++j) {\n          if (isAppend && endOutline[index + sign * j] <= point || !isAppend && endOutline[index + sign * j] >= point) {\n            ++columnCount;\n            continue;\n          }\n\n          break;\n        }\n\n        if (!isAppend) {\n          index -= columnCount - 1;\n        }\n      }\n\n      item.columnWidth = [columnLength, columnCount];\n      shapes.push((_a = {\n        width: columnCount,\n        height: columnCount\n      }, _a[pos1Name] = point - (!isAppend ? columnCount : 0), _a[pos2Name] = index, _a.type = i + 1, _a.index = i, _a));\n\n      for (var j = 0; j < columnCount; ++j) {\n        endOutline[index + j] = point + sign * columnCount;\n      }\n    }\n\n    this._shapes = (_b = {\n      shapes: shapes\n    }, _b[style.size2] = columnLength, _b);\n\n    var result = _super.prototype._layout.call(this, items, outline, isAppend);\n\n    if (!isAppend) {\n      shapes.sort(function (shape1, shape2) {\n        var item1pos1 = shape1[pos1Name];\n        var item1pos2 = shape1[pos2Name];\n        var item2pos1 = shape2[pos1Name];\n        var item2pos2 = shape2[pos2Name];\n\n        if (item1pos1 - item2pos1) {\n          return item1pos1 - item2pos1;\n        }\n\n        return item1pos2 - item2pos2;\n      });\n      items.sort(function (a, b) {\n        var item1pos1 = a.rect[pos1Name];\n        var item1pos2 = a.rect[pos2Name];\n        var item2pos1 = b.rect[pos1Name];\n        var item2pos2 = b.rect[pos2Name];\n\n        if (item1pos1 - item2pos1) {\n          return item1pos1 - item2pos1;\n        }\n\n        return item1pos2 - item2pos2;\n      });\n    }\n\n    return result;\n  };\n\n  __proto._getSquareSize = function (item) {\n    var _a = this.options,\n        column = _a.column,\n        margin = _a.margin,\n        itemSize = _a.itemSize;\n\n    if (column) {\n      // if column is in options, caculate itemSize from column.\n      this._itemSize = (this._size + margin) / column - margin;\n    } else if (itemSize) {\n      this._itemSize = this.options.itemSize;\n    } else {\n      var sizeName = this._style.size2; // if frameSize is 0, caculate frameSize from item.size.\n\n      var frameSize = this._shapes[sizeName] || Math.floor((this._size + margin) / (item.size[sizeName] + margin) / getColumn(item));\n      this._itemSize = (this._size + margin) / frameSize - margin;\n    }\n\n    return this._itemSize;\n  };\n\n  return SquareLayout;\n}(FrameLayout);\n\nvar BoxModel = /*#__PURE__*/function () {\n  function BoxModel(options) {\n    assign(this, {\n      originWidth: 0,\n      originHeight: 0,\n      width: 0,\n      height: 0,\n      left: 0,\n      top: 0,\n      items: []\n    }, options);\n  }\n\n  var __proto = BoxModel.prototype;\n\n  __proto.scaleTo = function (width, height) {\n    var scaleX = this.width ? width / this.width : 0;\n    var scaleY = this.height ? height / this.height : 0;\n    this.items.forEach(function (v) {\n      if (scaleX !== 0) {\n        v.left *= scaleX;\n        v.width *= scaleX;\n      }\n\n      if (scaleY !== 0) {\n        v.top *= scaleY;\n        v.height *= scaleY;\n      }\n    });\n    this.width = width;\n    this.height = height;\n  };\n\n  __proto.push = function (item) {\n    this.items.push(item);\n  };\n\n  __proto.getOriginSize = function () {\n    return this.originWidth * this.originHeight;\n  };\n\n  __proto.getSize = function () {\n    return this.width * this.height;\n  };\n\n  __proto.getOriginRatio = function () {\n    return this.originHeight === 0 ? 0 : this.originWidth / this.originHeight;\n  };\n\n  __proto.getRatio = function () {\n    return this.height === 0 ? 0 : this.width / this.height;\n  };\n\n  return BoxModel;\n}();\n\nfunction getCost(originLength, length) {\n  var cost = originLength / length;\n\n  if (cost < 1) {\n    cost = 1 / cost;\n  }\n\n  return cost - 1;\n}\n\nfunction fitArea(item, bestFitArea, itemFitSize, containerFitSize, layoutVertical) {\n  item.height = itemFitSize.height;\n  item.width = itemFitSize.width;\n  bestFitArea.height = containerFitSize.height;\n  bestFitArea.width = containerFitSize.width;\n\n  if (layoutVertical) {\n    item.top = bestFitArea.top + bestFitArea.height;\n    item.left = bestFitArea.left;\n  } else {\n    item.left = bestFitArea.left + bestFitArea.width;\n    item.top = bestFitArea.top;\n  }\n}\n/**\n * @classdesc The PackingLayout is a layout that shows the important cards bigger without sacrificing the weight of the cards. Rows and columns are separated so that cards are dynamically placed within the horizontal and vertical space rather than arranged in an orderly fashion.\n * @ko PackingLayout은 카드의 본래 크기에 따른 비중을 해치지 않으면서 중요한 카드는 더 크게 보여 주는 레이아웃이다. 행과 열이 구분돼 이미지를 정돈되게 배치하는 대신 가로세로 일정 공간 내에서 동적으로 카드를 배치한다.\n * @class eg.InfiniteGrid.PackingLayout\n * @param {Object} [options] The option object of eg.InfiniteGrid.PackingLayout module <ko>eg.InfiniteGrid.PackingLayout 모듈의 옵션 객체</ko>\n * @param {String} [options.margin=0] Margin used to create space around items <ko>아이템들 사이의 공간</ko>\n * @param {Boolean} [options.horizontal=false] Direction of the scroll movement (false: vertical, true: horizontal) <ko>스크롤 이동 방향 (false: 세로방향, true: 가로방향)</ko>\n * @param {Boolean} [options.aspectRatio=1] The aspect ratio of the group <ko> 그룹의 가로 세로 비 </ko>\n * @param {Boolean} [options.sizeWeight=1] The size weight when placing an image <ko> 이미지를 배치할 때 사이즈 가중치 </ko>\n * @param {Boolean} [options.ratioWeight=1] The ratio weight when placing an image <ko> 이미지를 배치할 때 비율 가중치 </ko>\n * @example\n```\n<script>\nvar ig = new eg.InfiniteGrid(\"#grid\". {\n  horizontal: true,\n});\n\nig.setLayout(eg.InfiniteGrid.PackingLayout, {\n  margin: 10,\n  aspectRatio: 1,\n  sizeWeight: 1,\n  ratioWeight: 2,\n});\n\n// or\n\nvar layout = new eg.InfiniteGrid.PackingLayout({\n  horizontal: true,\n  margin: 10,\n  aspectRatio: 1,\n  sizeWeight: 1,\n  ratioWeight: 2,\n});\n\n</script>\n```\n **/\n\n\nvar PackingLayout = /*#__PURE__*/function () {\n  function PackingLayout(options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    this.options = assignOptions({\n      margin: 0,\n      horizontal: false,\n      aspectRatio: 1,\n      sizeWeight: 1,\n      ratioWeight: 1\n    }, options);\n    this._size = 0;\n    this._style = getStyleNames(this.options.horizontal);\n  }\n  /**\n   * Adds items at the bottom of a outline.\n   * @ko 아이템들을 아웃라인 아래에 추가한다.\n   * @method eg.InfiniteGrid.PackingLayout#append\n   * @param {Array} items Array of items to be layouted <ko>레이아웃할 아이템들의 배열</ko>\n   * @param {Array} [outline=[]] Array of outline points to be reference points <ko>기준점이 되는 아웃라인 점들의 배열</ko>\n   * @return {Object} Layouted items and outline of start and end <ko> 레이아웃이 된 아이템과 시작과 끝의 아웃라인이 담긴 정보</ko>\n   * @example\n   * layout.prepend(items, [100]);\n   */\n\n\n  var __proto = PackingLayout.prototype;\n\n  __proto.append = function (items, outline, cache) {\n    return this._insert(items, outline, true, cache);\n  };\n  /**\n   * Adds items at the top of a outline.\n   * @ko 아이템을 아웃라인 위에 추가한다.\n   * @method eg.InfiniteGrid.PackingLayout#prepend\n   * @param {Array} items Array of items to be layouted <ko>레이아웃할 아이템들의 배열</ko>\n   * @param {Array} [outline=[]] Array of outline points to be reference points <ko>기준점이 되는 아웃라인 점들의 배열</ko>\n   * @return {Object} Layouted items and outline of start and end <ko> 레이아웃이 된 아이템과 시작과 끝의 아웃라인이 담긴 정보</ko>\n   * @example\n   * layout.prepend(items, [100]);\n   */\n\n\n  __proto.prepend = function (items, outline, cache) {\n    return this._insert(items, outline, false, cache);\n  };\n  /**\n   * Adds items of groups at the bottom of a outline.\n   * @ko 그룹들의 아이템들을 아웃라인 아래에 추가한다.\n   * @method eg.InfiniteGrid.PackingLayout#layout\n   * @param {Array} groups Array of groups to be layouted <ko>레이아웃할 그룹들의 배열</ko>\n   * @param {Array} outline Array of outline points to be reference points <ko>기준점이 되는 아웃라인 점들의 배열</ko>\n   * @return {eg.InfiniteGrid.PackingLayout} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n   * layout.layout(groups, [100, 200, 300, 400]);\n   */\n\n\n  __proto.layout = function (groups, outline) {\n    if (groups === void 0) {\n      groups = [];\n    }\n\n    if (outline === void 0) {\n      outline = [];\n    }\n\n    var length = groups.length;\n    var point = outline;\n\n    for (var i = 0; i < length; ++i) {\n      var group = groups[i];\n\n      var outlines = this._layout(group.items, point, true);\n\n      group.outlines = outlines;\n      point = outlines.end;\n    }\n\n    return this;\n  };\n  /**\n   * Set the viewport size of the layout.\n   * @ko 레이아웃의 가시 사이즈를 설정한다.\n   * @method eg.InfiniteGrid.PackingLayout#setSize\n   * @param {Number} size The viewport size of container area where items are added to a layout <ko>레이아웃에 아이템을 추가하는 컨테이너 영역의 가시 사이즈</ko>\n   * @return {eg.InfiniteGrid.PackingLayout} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n   * layout.setSize(800);\n   */\n\n\n  __proto.setSize = function (size) {\n    this._size = size;\n    return this;\n  };\n\n  __proto._findBestFitArea = function (container, item) {\n    if (container.getRatio() === 0) {\n      // 아이템 최초 삽입시 전체영역 지정\n      container.originWidth = item.width;\n      container.originHeight = item.height;\n      container.width = item.width;\n      container.height = item.height;\n      return;\n    }\n\n    var bestFitArea;\n    var minCost = 10000000;\n    var layoutVertical = false;\n    var itemFitSize = {\n      width: 0,\n      height: 0\n    };\n    var containerFitSize = {\n      width: 0,\n      height: 0\n    };\n    var _a = this.options,\n        sizeWeight = _a.sizeWeight,\n        ratioWeight = _a.ratioWeight;\n    container.items.forEach(function (v) {\n      var containerSizeCost = getCost(v.getOriginSize(), v.getSize()) * sizeWeight;\n      var containerRatioCost = getCost(v.getOriginRatio(), v.getRatio()) * ratioWeight;\n      var width = v.width;\n      var height = v.height;\n      var cost;\n\n      for (var i = 0; i < 2; ++i) {\n        var itemWidth = void 0;\n        var itemHeight = void 0;\n        var containerWidth = void 0;\n        var containerHeight = void 0;\n\n        if (i === 0) {\n          // 상하에 아이템 추가\n          itemWidth = width;\n          itemHeight = height * (item.height / (v.originHeight + item.height));\n          containerWidth = width;\n          containerHeight = height - itemHeight;\n        } else {\n          // 좌우에 아이템 추가\n          itemHeight = height;\n          itemWidth = width * (item.width / (v.originWidth + item.width));\n          containerHeight = height;\n          containerWidth = width - itemWidth;\n        }\n\n        var itemSize = itemWidth * itemHeight;\n        var itemRatio = itemWidth / itemHeight;\n        var containerSize = containerWidth * containerHeight;\n        var containerRatio = containerHeight / containerHeight;\n        cost = getCost(item.getSize(), itemSize) * sizeWeight;\n        cost += getCost(item.getRatio(), itemRatio) * ratioWeight;\n        cost += getCost(v.getOriginSize(), containerSize) * sizeWeight - containerSizeCost;\n        cost += getCost(v.getOriginRatio(), containerRatio) * ratioWeight - containerRatioCost;\n\n        if (cost === Math.min(cost, minCost)) {\n          minCost = cost;\n          bestFitArea = v;\n          layoutVertical = i === 0;\n          itemFitSize.width = itemWidth;\n          itemFitSize.height = itemHeight;\n          containerFitSize.width = containerWidth;\n          containerFitSize.height = containerHeight;\n        }\n      }\n    });\n    fitArea(item, bestFitArea, itemFitSize, containerFitSize, layoutVertical);\n  };\n\n  __proto._layout = function (items, outline, isAppend) {\n    var _this = this;\n\n    if (outline === void 0) {\n      outline = [];\n    }\n\n    var style = this._style;\n    var _a = this.options,\n        horizontal = _a.horizontal,\n        aspectRatio = _a.aspectRatio,\n        margin = _a.margin;\n    var pos1Name = style.startPos1;\n    var containerWidth = this._size * (horizontal ? aspectRatio : 1);\n    var containerHeight = this._size / (horizontal ? 1 : aspectRatio);\n    var containerSize1 = horizontal ? containerWidth : containerHeight;\n    var prevOutline = toZeroArray(outline);\n    var start = isAppend ? Math.max.apply(Math, prevOutline) : Math.min.apply(Math, prevOutline) - containerSize1 - margin;\n    var end = start + containerSize1 + margin;\n    var container = new BoxModel({});\n    items.forEach(function (item) {\n      var _a = item.orgSize,\n          width = _a.width,\n          height = _a.height;\n      var model = new BoxModel({\n        width: width,\n        height: height,\n        originWidth: width,\n        originHeight: height\n      });\n\n      _this._findBestFitArea(container, model);\n\n      container.push(model);\n      container.scaleTo(containerWidth + margin, containerHeight + margin);\n    });\n    items.forEach(function (item, i) {\n      var boxItem = container.items[i];\n      var width = boxItem.width;\n      var height = boxItem.height;\n      var top = boxItem.top;\n      var left = boxItem.left;\n      item.rect = {\n        top: top,\n        left: left,\n        width: width - margin,\n        height: height - margin\n      };\n      item.rect[pos1Name] += start;\n    });\n    return {\n      start: [start],\n      end: [end]\n    };\n  };\n\n  __proto._insert = function (items, outline, isAppend, cache) {\n    if (items === void 0) {\n      items = [];\n    }\n\n    if (outline === void 0) {\n      outline = [];\n    } // this only needs the size of the item.\n\n\n    var clone = cache ? items : cloneItems(items);\n    return {\n      items: clone,\n      outlines: this._layout(clone, outline, isAppend)\n    };\n  };\n\n  return PackingLayout;\n}();\n/* eslint-disable */\n\n/******************************************************************************\n * Created 2008-08-19.\n *\n * Dijkstra path-finding functions. Adapted from the Dijkstar Python project.\n *\n * Copyright (C) 2008\n *   Wyatt Baldwin <self@wyattbaldwin.com>\n *   All rights reserved\n *\n * Licensed under the MIT license.\n *\n *   http://www.opensource.org/licenses/mit-license.php\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n *****************************************************************************/\n\n\nfunction single_source_shortest_paths(graph, s, d) {\n  // Predecessor map for each node that has been encountered.\n  // node ID => predecessor node ID\n  var predecessors = {}; // Costs of shortest paths from s to all nodes encountered.\n  // node ID => cost\n\n  var costs = {};\n  costs[s] = 0; // Costs of shortest paths from s to all nodes encountered; differs from\n  // `costs` in that it provides easy access to the node that currently has\n  // the known shortest path from s.\n  // XXX: Do we actually need both `costs` and `open`?\n\n  var open = new BinaryHeap(function (x) {\n    return x.cost;\n  });\n  open.push({\n    value: s,\n    cost: 0\n  });\n  var closest;\n  var u;\n  var cost_of_s_to_u;\n  var adjacent_nodes;\n  var cost_of_e;\n  var cost_of_s_to_u_plus_cost_of_e;\n  var cost_of_s_to_v;\n  var first_visit;\n\n  while (open.size()) {\n    // In the nodes remaining in graph that have a known cost from s,\n    // find the node, u, that currently has the shortest path from s.\n    closest = open.pop();\n    u = closest.value;\n    cost_of_s_to_u = closest.cost; // Get nodes adjacent to u...\n\n    adjacent_nodes = graph(u) || {}; // ...and explore the edges that connect u to those nodes, updating\n    // the cost of the shortest paths to any or all of those nodes as\n    // necessary. v is the node across the current edge from u.\n\n    for (var v in adjacent_nodes) {\n      // Get the cost of the edge running from u to v.\n      cost_of_e = adjacent_nodes[v]; // Cost of s to u plus the cost of u to v across e--this is *a*\n      // cost from s to v that may or may not be less than the current\n      // known cost to v.\n\n      cost_of_s_to_u_plus_cost_of_e = cost_of_s_to_u + cost_of_e; // If we haven't visited v yet OR if the current known cost from s to\n      // v is greater than the new cost we just found (cost of s to u plus\n      // cost of u to v across e), update v's cost in the cost list and\n      // update v's predecessor in the predecessor list (it's now u).\n\n      cost_of_s_to_v = costs[v];\n      first_visit = typeof costs[v] === \"undefined\";\n\n      if (first_visit || cost_of_s_to_v > cost_of_s_to_u_plus_cost_of_e) {\n        costs[v] = cost_of_s_to_u_plus_cost_of_e;\n        open.push({\n          value: v,\n          cost: cost_of_s_to_u_plus_cost_of_e\n        });\n        predecessors[v] = u;\n      }\n    }\n  }\n\n  if (typeof costs[d] === \"undefined\") {\n    var msg = [\"Could not find a path from \", s, \" to \", d, \".\"].join(\"\");\n    throw new Error(msg);\n  }\n\n  return predecessors;\n}\n\nfunction extract_shortest_path_from_predecessor_list(predecessors, d) {\n  var nodes = [];\n  var u = d;\n\n  while (u) {\n    nodes.push(u);\n    u = predecessors[u];\n  }\n\n  nodes.reverse();\n  return nodes;\n}\n\nfunction find_path(graph, s, d) {\n  var predecessors = single_source_shortest_paths(graph, s, d);\n  return extract_shortest_path_from_predecessor_list(predecessors, d);\n}\n\nvar BinaryHeap = /*#__PURE__*/function () {\n  function BinaryHeap(scoreFunction) {\n    this.content = [];\n    this.scoreFunction = scoreFunction;\n  }\n\n  var __proto = BinaryHeap.prototype;\n\n  __proto.push = function (element) {\n    // Add the new element to the end of the array.\n    this.content.push(element); // Allow it to bubble up.\n\n    this.bubbleUp(this.content.length - 1);\n  };\n\n  __proto.pop = function () {\n    // Store the first element so we can return it later.\n    var result = this.content[0]; // Get the element at the end of the array.\n\n    var end = this.content.pop(); // If there are any elements left, put the end element at the\n    // start, and let it sink down.\n\n    if (this.content.length > 0) {\n      this.content[0] = end;\n      this.sinkDown(0);\n    }\n\n    return result;\n  };\n\n  __proto.size = function () {\n    return this.content.length;\n  };\n\n  __proto.bubbleUp = function (_n) {\n    var n = _n; // Fetch the element that has to be moved.\n\n    var element = this.content[n]; // When at 0, an element can not go up any further.\n\n    while (n > 0) {\n      // Compute the parent element's index, and fetch it.\n      var parentN = Math.floor((n + 1) / 2) - 1;\n      var parent = this.content[parentN]; // Swap the elements if the parent is greater.\n\n      if (this.scoreFunction(element) < this.scoreFunction(parent)) {\n        this.content[parentN] = element;\n        this.content[n] = parent; // Update 'n' to continue at the new position.\n\n        n = parentN;\n      } else {\n        // Found a parent that is less, no need to move it further.\n        break;\n      }\n    }\n  };\n\n  __proto.sinkDown = function (n) {\n    // Look up the target element and its score.\n    var length = this.content.length;\n    var element = this.content[n];\n    var elemScore = this.scoreFunction(element);\n    var child1Score;\n\n    while (true) {\n      // Compute the indices of the child elements.\n      var child2N = (n + 1) * 2;\n      var child1N = child2N - 1; // This is used to store the new position of the element,\n      // if any.\n\n      var swap = null; // If the first child exists (is inside the array)...\n\n      if (child1N < length) {\n        // Look it up and compute its score.\n        var child1 = this.content[child1N];\n        child1Score = this.scoreFunction(child1); // If the score is less than our element's, we need to swap.\n\n        if (child1Score < elemScore) {\n          swap = child1N;\n        }\n      } // Do the same checks for the other child.\n\n\n      if (child2N < length) {\n        var child2 = this.content[child2N];\n        var child2Score = this.scoreFunction(child2);\n\n        if (child2Score < (swap == null ? elemScore : child1Score)) {\n          swap = child2N;\n        }\n      } // If the element needs to be moved, swap it, and continue.\n\n\n      if (swap !== null) {\n        this.content[n] = this.content[swap];\n        this.content[swap] = element;\n        n = swap;\n      } else {\n        // Otherwise, we are done.\n        break;\n      }\n    }\n  };\n\n  return BinaryHeap;\n}();\n/**\n * @classdesc 'justified' is a printing term with the meaning that 'it fits in one row wide'. JustifiedLayout is a layout that the card is filled up on the basis of a line given a size.\n * @ko 'justified'는 '1행의 너비에 맞게 꼭 들어찬'이라는 의미를 가진 인쇄 용어다. 용어의 의미대로 너비가 주어진 사이즈를 기준으로 카드가 가득 차도록 배치하는 레이아웃이다.\n * @class eg.InfiniteGrid.JustifiedLayout\n * @param {Object} [options] The option object of eg.InfiniteGrid.JustifiedLayout module <ko>eg.InfiniteGrid.JustifiedLayout 모듈의 옵션 객체</ko>\n * @param {String} [options.margin=0] Margin used to create space around items <ko>아이템들 사이의 공간</ko>\n * @param {Boolean} [options.horizontal=false] Direction of the scroll movement (false: vertical, true: horizontal) <ko>스크롤 이동 방향 (false: 세로방향, true: 가로방향)</ko>\n * @param {Number} [options.minSize=0] Minimum size of item to be resized <ko> 아이템이 조정되는 최소 크기 </ko>\n * @param {Number} [options.maxSize=0] Maximum size of item to be resized <ko> 아이템이 조정되는 최대 크기 </ko>\n * @param {Array|Number} [options.column=[1, 8]] The number of items in a line <ko> 한 줄에 들어가는 아이템의 개수 </ko>\n * @example\n```\n<script>\nvar ig = new eg.InfiniteGrid(\"#grid\". {\n  horizontal: true,\n});\n\nig.setLayout(eg.InfiniteGrid.JustifiedLayout, {\n  margin: 10,\n  minSize: 100,\n  maxSize: 300,\n});\n\n// or\n\nvar layout = new eg.InfiniteGrid.JustifiedLayout({\n  margin: 10,\n  minSize: 100,\n  maxSize: 300,\n  column: 5,\n  horizontal: true,\n});\n\n</script>\n```\n **/\n\n\nvar JustifiedLayout = /*#__PURE__*/function () {\n  function JustifiedLayout(options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    this.options = assignOptions({\n      margin: 0,\n      horizontal: false,\n      minSize: 0,\n      maxSize: 0,\n      column: [1, 8]\n    }, options);\n    this._style = getStyleNames(this.options.horizontal);\n    this._size = 0;\n  }\n  /**\n   * Set the viewport size of the layout.\n   * @ko 레이아웃의 가시 사이즈를 설정한다.\n   * @method eg.InfiniteGrid.JustifiedLayout#setSize\n   * @param {Number} size The viewport size of container area where items are added to a layout <ko>레이아웃에 아이템을 추가하는 컨테이너 영역의 가시 사이즈</ko>\n   * @return {eg.InfiniteGrid.JustifiedLayout} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n   * layout.setSize(800);\n   */\n\n\n  var __proto = JustifiedLayout.prototype;\n\n  __proto.setSize = function (size) {\n    this._size = size;\n    return this;\n  };\n  /**\n   * Adds items at the bottom of a outline.\n   * @ko 아이템들을 아웃라인 아래에 추가한다.\n   * @method eg.InfiniteGrid.JustifiedLayout#append\n   * @param {Array} items Array of items to be layouted <ko>레이아웃할 아이템들의 배열</ko>\n   * @param {Array} [outline=[]] Array of outline points to be reference points <ko>기준점이 되는 아웃라인 점들의 배열</ko>\n   * @return {Object} Layouted items and outline of start and end <ko> 레이아웃이 된 아이템과 시작과 끝의 아웃라인이 담긴 정보</ko>\n   * @example\n   * layout.prepend(items, [100]);\n   */\n\n\n  __proto.append = function (items, outline, cache) {\n    return this._insert(items, outline, true, cache);\n  };\n  /**\n   * Adds items at the top of a outline.\n   * @ko 아이템을 아웃라인 위에 추가한다.\n   * @method eg.InfiniteGrid.JustifiedLayout#prepend\n   * @param {Array} items Array of items to be layouted <ko>레이아웃할 아이템들의 배열</ko>\n   * @param {Array} [outline=[]] Array of outline points to be reference points <ko>기준점이 되는 아웃라인 점들의 배열</ko>\n   * @return {Object} Layouted items and outline of start and end <ko> 레이아웃이 된 아이템과 시작과 끝의 아웃라인이 담긴 정보</ko>\n   * @example\n   * layout.prepend(items, [100]);\n   */\n\n\n  __proto.prepend = function (items, outline, cache) {\n    return this._insert(items, outline, false, cache);\n  };\n  /**\n   * Adds items of groups at the bottom of a outline.\n   * @ko 그룹들의 아이템들을 아웃라인 아래에 추가한다.\n   * @method eg.InfiniteGrid.JustifiedLayout#layout\n   * @param {Array} groups Array of groups to be layouted <ko>레이아웃할 그룹들의 배열</ko>\n   * @param {Array} outline Array of outline points to be reference points <ko>기준점이 되는 아웃라인 점들의 배열</ko>\n   * @return {eg.InfiniteGrid.JustifiedLayout} An instance of a module itself<ko>모듈 자신의 인스턴스</ko>\n   * @example\n   * layout.layout(groups, [100]);\n   */\n\n\n  __proto.layout = function (groups, outline) {\n    if (groups === void 0) {\n      groups = [];\n    }\n\n    if (outline === void 0) {\n      outline = [];\n    }\n\n    var length = groups.length;\n    var point = outline;\n\n    for (var i = 0; i < length; ++i) {\n      var group = groups[i];\n\n      var outlines = this._layout(group.items, point, true);\n\n      group.outlines = outlines;\n      point = outlines.end;\n    }\n\n    return this;\n  };\n\n  __proto._layout = function (items, outline, isAppend) {\n    var _this = this;\n\n    var style = this._style;\n    var size1Name = style.size1;\n    var size2Name = style.size2;\n    var startIndex = 0;\n    var endIndex = items.length;\n    var column = this.options.column;\n    var columns = _typeof(column) === \"object\" ? column : [column, column];\n\n    var graph = function graph(_start) {\n      var results = {};\n      var start = +_start.replace(/[^0-9]/g, \"\");\n      var length = endIndex + 1;\n\n      for (var i = Math.min(start + columns[0], length - 1); i < length; ++i) {\n        if (i - start > columns[1]) {\n          break;\n        }\n\n        var cost = _this._getCost(items, start, i, size1Name, size2Name);\n\n        if (cost === null) {\n          continue;\n        }\n\n        if (cost < 0 && i === length - 1) {\n          cost = 0;\n        }\n\n        results[\"\" + i] = Math.pow(cost, 2);\n      }\n\n      return results;\n    }; // shortest path for items' total height.\n\n\n    var path = find_path(graph, \"\" + startIndex, \"\" + endIndex);\n    return this._setStyle(items, path, outline, isAppend);\n  };\n\n  __proto._getSize = function (items, size1Name, size2Name) {\n    var margin = this.options.margin;\n    var size = items.reduce(function (sum, item) {\n      return sum + item.orgSize[size2Name] / item.orgSize[size1Name];\n    }, 0);\n    return (this._size - margin * (items.length - 1)) / size;\n  };\n\n  __proto._getCost = function (items, i, j, size1Name, size2Name) {\n    var size = this._getSize(items.slice(i, j), size1Name, size2Name);\n\n    var min = this.options.minSize || 0;\n    var max = this.options.maxSize || Infinity;\n\n    if (isFinite(max)) {\n      // if this size is not in range, the cost increases sharply.\n      if (size < min) {\n        return Math.pow(size - min, 2) + Math.pow(max, 2);\n      } else if (size > max) {\n        return Math.pow(size - max, 2) + Math.pow(max, 2);\n      } else {\n        // if this size in range, the cost is negative or low.\n        return Math.min(size - max, min - size);\n      }\n    } // if max is infinite type, caculate cost only with \"min\".\n\n\n    if (size < min) {\n      return Math.max(Math.pow(min, 2), Math.pow(size, 2));\n    }\n\n    return size - min;\n  };\n\n  __proto._setStyle = function (items, path, outline, isAppend) {\n    if (outline === void 0) {\n      outline = [];\n    }\n\n    var _a;\n\n    var style = this._style; // if direction is vertical\n    // startPos1 : top, endPos1 : bottom\n    // size1 : height\n    // startPos2 : left, endPos2 : right\n    // size2 : width\n    // if direction is horizontal\n    // startPos1 : left, endPos1 : right\n    // size1 : width\n    // startPos2 : top, endPos2 : bottom\n    // size2 : height\n\n    var pos1Name = style.startPos1;\n    var size1Name = style.size1;\n    var pos2Name = style.startPos2;\n    var size2Name = style.size2;\n    var length = path.length;\n    var margin = this.options.margin;\n    var startPoint = outline[0] || 0;\n    var endPoint = startPoint;\n    var height = 0;\n\n    for (var i = 0; i < length - 1; ++i) {\n      var path1 = parseInt(path[i], 10);\n      var path2 = parseInt(path[i + 1], 10); // pathItems(path1 to path2) are in 1 line.\n\n      var pathItems = items.slice(path1, path2);\n      var pathItemsLength = pathItems.length;\n\n      var size1 = this._getSize(pathItems, size1Name, size2Name);\n\n      var pos1 = endPoint;\n\n      for (var j = 0; j < pathItemsLength; ++j) {\n        var item = pathItems[j];\n        var size2 = item.orgSize[size2Name] / item.orgSize[size1Name] * size1; // item has margin bottom and right.\n        // first item has not margin.\n\n        var prevItemRect = j === 0 ? 0 : pathItems[j - 1].rect;\n        var pos2 = prevItemRect ? prevItemRect[pos2Name] + prevItemRect[size2Name] + margin : 0;\n        item.rect = (_a = {}, _a[pos1Name] = pos1, _a[pos2Name] = pos2, _a[size1Name] = size1, _a[size2Name] = size2, _a);\n      }\n\n      height += margin + size1;\n      endPoint = startPoint + height;\n    }\n\n    var itemsLength = items.length;\n\n    if (isAppend) {\n      // previous group's end outline is current group's start outline\n      return {\n        start: [startPoint],\n        end: [endPoint]\n      };\n    } // for prepend, only substract height from position.\n    // always start is lower than end.\n\n\n    for (var i = 0; i < itemsLength; ++i) {\n      var item = items[i]; // move items as long as height for prepend\n\n      item.rect[pos1Name] -= height;\n    }\n\n    return {\n      start: [startPoint - height],\n      end: [startPoint]\n    };\n  };\n\n  __proto._insert = function (items, outline, isAppend, cache) {\n    if (items === void 0) {\n      items = [];\n    }\n\n    if (outline === void 0) {\n      outline = [];\n    } // this only needs the size of the item.\n\n\n    var clone = cache ? items : cloneItems(items);\n    return {\n      items: clone,\n      outlines: this._layout(clone, outline, isAppend)\n    };\n  };\n\n  return JustifiedLayout;\n}();\n/**\n * Copyright (c) NAVER Corp.\n * egjs-infinitegrid projects are licensed under the MIT license\n */\n\n\nexport default InfiniteGrid;\nexport { GridLayout, FrameLayout, SquareLayout, PackingLayout, JustifiedLayout, Infinite, DOMRenderer, ItemManager, CONTAINER_CLASSNAME, IGNORE_CLASSNAME, DEFAULT_OPTIONS, INFINITEGRID_METHODS, INFINITEGRID_EVENTS, categorize, withInfiniteGridMethods };","import InfiniteGrid, { GridLayout } from \"@egjs/infinitegrid\"\nimport { debounce } from 'lodash'\n\nconst getUrl = (element) => element.getAttribute('data-url')\n\nconst getPage = (element) => Number(element.getAttribute('data-page'))\n\nconst setPage = (page, element) => element.setAttribute('data-page', page)\n\nconst getHasMore = (element) => element.getAttribute('data-has_more')\n\nconst setHasMore = (hasMore, element) => element.setAttribute('data-has_more', hasMore)\n\nconst getNextItems = async (baseUrl, nextPage, element) => {\n  const response = await fetch(`${baseUrl}.json?page=${nextPage}`)\n  const data = await response.json()\n  setPage(data['page'], element)\n  setHasMore(data['has_more'], element)\n  return data['items']\n}\n\nconst getNextDebouncedItems = debounce((ig, element) => {\n  const baseUrl = getUrl(element)\n  const currentPage = getPage(element)\n  const nextPage = currentPage + 1\n  getNextItems(baseUrl, nextPage, element).then(items => {\n    ig.append(items)\n    ig.layout()\n  })\n  }, 200, {leading: true, trailing: false}\n)\n\nconst initializeInfiniteGrid = (element) => {\n  const ig = new InfiniteGrid(element, {\n      horizontal: false,\n      isConstantSize: true\n   })\n  ig.setLayout(GridLayout, {\n    align: 'center',\n    margin: 20\n  })\n  ig.layout()\n  ig.on('append', (event) => {\n    if (getHasMore(element) === 'false') return\n\n    getNextDebouncedItems(ig, element)\n  })\n  window.addEventListener('turbolinks:before-visit', () => {\n    ig.destroy()\n  })\n}\n\nexport { initializeInfiniteGrid }\n","import { initializeInfiniteGrid } from './infinitegrid'\n\nwindow.addEventListener('turbolinks:load', () => {\n  const gridElement = document.getElementById('infinitegrid-reviews')\n  if (!gridElement) return\n\n  initializeInfiniteGrid(gridElement)\n})\n","import { initializeInfiniteGrid } from './infinitegrid'\n\nwindow.addEventListener('turbolinks:load', () => {\n  const gridElement = document.getElementById('infinitegrid-publications')\n  if (!gridElement) return\n\n  initializeInfiniteGrid(gridElement)\n})\n","import axios from 'axios'\n\nimport initPolling from '../shared/polling'\n\nconst PARTICIPATION_FORM_SELECTOR = '.js-participation_form'\n\n// milliseconds\nconst POLLING_SHOULD_NOT_START_AFTER = 600000\nconst POLLING_TIMEOUT = 120000\nconst POLLING_INTERVAL = 2000\n\nconst pollingInitiatedAt = Date.now()\nlet stillProcessing = true\n\nconst poll = (formParams, campaignId) => {\n  return initPolling(\n    () => axios.get(`/campaigns/${campaignId}/instagram_profile_validation_status.json`, { params: { participation_form_params: formParams } }).\n    then(({ data }) => data), {\n      timeout: POLLING_TIMEOUT,\n      interval: POLLING_INTERVAL,\n      successCondition: response => response.processing === false\n    }\n  )\n}\n\nconst toggleInstagramValidityCheckResultPolling = (form, formParams, campaignId) => {\n  const submitButtonEl = document.querySelector('.js-new-participation-submit-button')\n  const submitButtonContentEl = document.querySelector('.js-new-participation-submit-content')\n  const submitButtonLoaderEl = document.querySelector('.js-new-participation-submit-loader')\n\n  toggleSubmitButton(submitButtonEl, submitButtonContentEl, submitButtonLoaderEl)\n\n  if (document.hidden) {\n    poll(formParams, campaignId).stop()\n  } else if (\n    stillProcessing &&\n    Date.now() - pollingInitiatedAt < POLLING_SHOULD_NOT_START_AFTER\n  ) {\n    poll(formParams, campaignId).start().then(\n      ({\n        processing,\n        instagram_public_profile_verified: instagramPublicProfileVerified,\n        form_with_error: formWithError\n      }) => {\n        stillProcessing = processing\n\n        if (stillProcessing) return\n        if (formWithError) return handleFormErrors(formWithError)\n\n        toggleSubmitButton(submitButtonEl, submitButtonContentEl, submitButtonLoaderEl)\n        createParticipation(\n          form,\n          Object.assign(formParams, { instagram_public_profile_verified: instagramPublicProfileVerified })\n        )\n      }\n    )\n  }\n}\n\nconst toggleSubmitButton = (submitButtonEl, contentEl, loaderEl) => {\n  submitButtonEl.disabled = !submitButtonEl.disabled\n  contentEl.hidden = !contentEl.hidden\n  loaderEl.hidden = !loaderEl.hidden\n}\n\nconst createParticipation = (form, params) => {\n  $.ajax({\n    type: \"POST\",\n    url: form.dataset.createParticipationUrl,\n    data: { participation_form: params },\n    success: ({ redirect_to: redirectTo }) => window.location.href = redirectTo,\n    error: () => window.location.reload()\n  })\n}\n\nconst checkParticipationFormValid = (form) => {\n  const successWithErrorStatusCode = 299\n\n  if (!form) return\n  form.addEventListener('ajax:success', event => {\n    const status = event.detail[2].status\n    const response = event.detail[2].response\n    if (status !== successWithErrorStatusCode) {\n      const parsedResponse = JSON.parse(response)\n      if (parsedResponse.processing) {\n        stillProcessing = true\n        toggleInstagramValidityCheckResultPolling(form, parsedResponse.participation_form_params, parsedResponse.campaign_id)\n      } else {\n        createParticipation(form, parsedResponse.participation_form_params)\n      }\n    } else {\n      handleFormErrors(response)\n    }\n  })\n}\n\nconst handleFormErrors = (formWithErrorsEl) => {\n  const participationFormContainer = document.querySelector('.js-partcipation_form_container')\n  participationFormContainer.innerHTML = formWithErrorsEl\n  const form = participationFormContainer.querySelector(PARTICIPATION_FORM_SELECTOR)\n  checkParticipationFormValid(form)\n}\n\nexport default () => {\n  const participationForm = document.querySelector(PARTICIPATION_FORM_SELECTOR)\n\n  if (participationForm) checkParticipationFormValid(participationForm)\n}\n","export default (fn, { timeout, interval, successCondition }) => {\n  const endTime = Number(new Date()) + timeout\n  let pollingTimeout = null\n\n  const checkCondition = (resolve, reject) => {\n    const ajax = fn()\n\n    ajax.then(response => {\n      if (successCondition(response)) {\n        resolve(response)\n      } else if (Number(new Date()) < endTime) {\n        pollingTimeout = setTimeout(checkCondition, interval, resolve, reject)\n      }\n    })\n  }\n\n  return {\n    start: () => new Promise(checkCondition),\n    stop () {\n      clearTimeout(pollingTimeout)\n      pollingTimeout = null\n    }\n  }\n}\n","const initProfileForm = () => {\n  const childrenWrapperEl = document.querySelector('.js_children_wrapper')\n  const hasChildrenRadioEls = document.querySelectorAll('.js_profile_form_children_radio_button')\n  const addMoreChildrenButtonEl = document.querySelector('.js_profile_form__add_more_children_button')\n\n  const animalsWrapperEl = document.querySelector('.js_animals_wrapper')\n  const hasAnimalsRadioEls = document.querySelectorAll('.js_profile_form_animals_radio_button')\n  const addMoreAnimalsButtonEl = document.querySelector('.js_profile_form__add_more_animals_button')\n\n  hasChildrenRadioEls.forEach(el => {\n    el.addEventListener('change', e => toggleInputEls(e.target.value, 'children'))\n  })\n\n  hasAnimalsRadioEls.forEach(el => {\n    el.addEventListener('change', e => toggleInputEls(e.target.value, 'animals'))\n  })\n\n  if (addMoreAnimalsButtonEl) {\n    addMoreAnimalsButtonEl.addEventListener('click', () => {\n      const newAnimalsContainerEl = buildNewAnimalsContainerEl()\n      animalsWrapperEl.appendChild(newAnimalsContainerEl)\n    })\n  }\n\n  if (addMoreChildrenButtonEl) {\n    addMoreChildrenButtonEl.addEventListener('click', () => {\n      const newChildrenContainerEl = buildNewChildrenContainerEl()\n      childrenWrapperEl.appendChild(newChildrenContainerEl)\n    })\n  }\n}\n\nconst toggleInputEls = (shouldDisplay, lifestyleAttr) => {\n  const addMoreButtonEl = document.querySelector(`.js_profile_form__add_more_${lifestyleAttr}_button`)\n  const inputContainerEls = document.querySelectorAll(`.js_${lifestyleAttr}_container`)\n  const hiddenValue = shouldDisplay !== 'true'\n\n  addMoreButtonEl.hidden = hiddenValue\n  inputContainerEls.forEach(el => el.hidden = hiddenValue)\n}\n\nconst buildNewAnimalsContainerEl = () => {\n  const animalsContainersCount = document.querySelectorAll('.js_animals_container').length\n  const firstAnimalsContainerEl = document.querySelector('.js_animals_container')\n  const newEl = firstAnimalsContainerEl.cloneNode(true)\n\n  newEl.children.forEach(childEl => {\n    const lifestyleAnimalsAttrName = childEl.dataset.attrName\n\n    childEl.children.forEach(el => {\n      if (el.tagName === 'LABEL') {\n        overrideHtmlAttribute(\n          el, \"for\",\n          `profile_form_animals_${animalsContainersCount + 1}_${lifestyleAnimalsAttrName}`\n        )\n      }\n      if (el.tagName === 'SELECT') {\n        overrideHtmlAttribute(\n          el, \"name\",\n          `profile_form[animals][${animalsContainersCount + 1}][${lifestyleAnimalsAttrName}]`\n        )\n        overrideHtmlAttribute(\n          el, \"id\",\n          `profile_form_animals_${animalsContainersCount + 1}_${lifestyleAnimalsAttrName}`\n        )\n        el.value = \"\"\n      }\n      if (el.tagName === 'INPUT') {\n        overrideHtmlAttribute(\n          el, \"name\",\n          `profile_form[animals][${animalsContainersCount + 1}][${lifestyleAnimalsAttrName}]`\n        )\n        overrideHtmlAttribute(\n          el, \"id\",\n          `profile_form_animals_${animalsContainersCount + 1}_${lifestyleAnimalsAttrName}`\n        )\n        el.value = \"\"\n      }\n    })\n  })\n\n  return newEl\n}\n\nconst buildNewChildrenContainerEl = () => {\n  const childrenContainersCount = document.querySelectorAll('.js_children_container').length\n  const firstChildrenContainerEl = document.querySelector('.js_children_container')\n  const newEl = firstChildrenContainerEl.cloneNode(true)\n\n  newEl.children.forEach(childEl => {\n    const lifestyleChildrenAttrName = childEl.dataset.attrName\n\n    childEl.children.forEach(el => {\n      if (el.tagName === 'LABEL') {\n        overrideHtmlAttribute(\n          el, \"for\",\n          `profile_form_children_${childrenContainersCount + 1}_${lifestyleChildrenAttrName}`\n        )\n      }\n      if (el.tagName === 'SELECT') {\n        overrideHtmlAttribute(\n          el, \"name\",\n          `profile_form[children][${childrenContainersCount + 1}][${lifestyleChildrenAttrName}]`\n        )\n        overrideHtmlAttribute(\n          el, \"id\",\n          `profile_form_children_${childrenContainersCount + 1}_${lifestyleChildrenAttrName}`\n        )\n        el.value = \"\"\n      }\n    })\n  })\n\n  return newEl\n}\n\nconst overrideHtmlAttribute = (element, attributeName, attributeValues) => {\n  element.removeAttribute(attributeName)\n  element.setAttribute(attributeName, attributeValues)\n}\n\nexport default () => {\n  const profileFormEl = document.querySelector('.js_profile_form')\n\n  if (profileFormEl) initProfileForm()\n}\n","\nimport Turbolinks from 'turbolinks'\n\nimport '../components/feedback';\nimport '../components/publications';\nimport ParticipationForm from '../influencers/participation_form'\nimport ProfileForm from '../influencers/profile_form'\n\nTurbolinks.start()\n\nwindow.addEventListener('turbolinks:load', () => {\n  ParticipationForm()\n  ProfileForm()\n})\n"],"sourceRoot":""}