{"version":3,"file":"ext-mathjax.js","sources":["../../../../node_modules/core-js/internals/global.js","../../../../node_modules/core-js/internals/fails.js","../../../../node_modules/core-js/internals/descriptors.js","../../../../node_modules/core-js/internals/object-property-is-enumerable.js","../../../../node_modules/core-js/internals/create-property-descriptor.js","../../../../node_modules/core-js/internals/classof-raw.js","../../../../node_modules/core-js/internals/indexed-object.js","../../../../node_modules/core-js/internals/require-object-coercible.js","../../../../node_modules/core-js/internals/to-indexed-object.js","../../../../node_modules/core-js/internals/is-object.js","../../../../node_modules/core-js/internals/to-primitive.js","../../../../node_modules/core-js/internals/has.js","../../../../node_modules/core-js/internals/document-create-element.js","../../../../node_modules/core-js/internals/ie8-dom-define.js","../../../../node_modules/core-js/internals/object-get-own-property-descriptor.js","../../../../node_modules/core-js/internals/an-object.js","../../../../node_modules/core-js/internals/object-define-property.js","../../../../node_modules/core-js/internals/create-non-enumerable-property.js","../../../../node_modules/core-js/internals/set-global.js","../../../../node_modules/core-js/internals/shared-store.js","../../../../node_modules/core-js/internals/inspect-source.js","../../../../node_modules/core-js/internals/internal-state.js","../../../../node_modules/core-js/internals/native-weak-map.js","../../../../node_modules/core-js/internals/shared.js","../../../../node_modules/core-js/internals/uid.js","../../../../node_modules/core-js/internals/shared-key.js","../../../../node_modules/core-js/internals/hidden-keys.js","../../../../node_modules/core-js/internals/object-create.js","../../../../node_modules/core-js/internals/redefine.js","../../../../node_modules/core-js/internals/path.js","../../../../node_modules/core-js/internals/get-built-in.js","../../../../node_modules/core-js/internals/to-integer.js","../../../../node_modules/core-js/internals/to-length.js","../../../../node_modules/core-js/internals/to-absolute-index.js","../../../../node_modules/core-js/internals/array-includes.js","../../../../node_modules/core-js/internals/object-keys-internal.js","../../../../node_modules/core-js/internals/enum-bug-keys.js","../../../../node_modules/core-js/internals/object-get-own-property-names.js","../../../../node_modules/core-js/internals/object-get-own-property-symbols.js","../../../../node_modules/core-js/internals/own-keys.js","../../../../node_modules/core-js/internals/copy-constructor-properties.js","../../../../node_modules/core-js/internals/is-forced.js","../../../../node_modules/core-js/internals/export.js","../../../../node_modules/core-js/internals/a-function.js","../../../../node_modules/core-js/internals/function-bind-context.js","../../../../node_modules/core-js/internals/to-object.js","../../../../node_modules/core-js/internals/is-array.js","../../../../node_modules/core-js/internals/native-symbol.js","../../../../node_modules/core-js/internals/use-symbol-as-uid.js","../../../../node_modules/core-js/internals/well-known-symbol.js","../../../../node_modules/core-js/internals/array-species-create.js","../../../../node_modules/core-js/internals/array-iteration.js","../../../../node_modules/core-js/internals/object-keys.js","../../../../node_modules/core-js/internals/object-define-properties.js","../../../../node_modules/core-js/internals/html.js","../../../../node_modules/core-js/internals/add-to-unscopables.js","../../../../node_modules/core-js/internals/array-method-uses-to-length.js","../../../../node_modules/core-js/modules/es.array.find.js","../../../../node_modules/core-js/internals/engine-user-agent.js","../../../../node_modules/core-js/internals/engine-v8-version.js","../../../../node_modules/core-js/internals/array-method-has-species-support.js","../../../../node_modules/core-js/modules/es.array.map.js","../../../../node_modules/core-js/internals/create-property.js","../../../../node_modules/core-js/modules/es.array.slice.js","../../../../node_modules/core-js/modules/es.function.name.js","../../../../node_modules/core-js/internals/object-assign.js","../../../../node_modules/core-js/modules/es.object.assign.js","../../../../node_modules/core-js/internals/to-string-tag-support.js","../../../../node_modules/core-js/internals/classof.js","../../../../node_modules/core-js/internals/object-to-string.js","../../../../node_modules/core-js/modules/es.object.to-string.js","../../../../node_modules/core-js/internals/native-promise-constructor.js","../../../../node_modules/core-js/internals/set-to-string-tag.js","../../../../node_modules/core-js/internals/set-species.js","../../../../node_modules/core-js/internals/iterators.js","../../../../node_modules/core-js/internals/is-array-iterator-method.js","../../../../node_modules/core-js/internals/get-iterator-method.js","../../../../node_modules/core-js/internals/call-with-safe-iteration-closing.js","../../../../node_modules/core-js/internals/iterate.js","../../../../node_modules/core-js/internals/check-correctness-of-iteration.js","../../../../node_modules/core-js/internals/task.js","../../../../node_modules/core-js/internals/species-constructor.js","../../../../node_modules/core-js/internals/engine-is-ios.js","../../../../node_modules/core-js/internals/microtask.js","../../../../node_modules/core-js/modules/es.promise.js","../../../../node_modules/core-js/internals/new-promise-capability.js","../../../../node_modules/core-js/internals/promise-resolve.js","../../../../node_modules/core-js/internals/perform.js","../../../../node_modules/core-js/internals/host-report-errors.js","../../../../node_modules/core-js/internals/an-instance.js","../../../../node_modules/core-js/internals/redefine-all.js","../../../../node_modules/core-js/internals/object-get-own-property-names-external.js","../../../../node_modules/core-js/internals/well-known-symbol-wrapped.js","../../../../node_modules/core-js/internals/define-well-known-symbol.js","../../../../node_modules/core-js/modules/es.symbol.js","../../../../node_modules/core-js/modules/es.symbol.description.js","../../../../node_modules/core-js/modules/es.symbol.async-iterator.js","../../../../node_modules/core-js/modules/es.symbol.iterator.js","../../../../node_modules/core-js/modules/es.symbol.to-string-tag.js","../../../../node_modules/core-js/internals/array-method-is-strict.js","../../../../node_modules/core-js/internals/array-for-each.js","../../../../node_modules/core-js/modules/es.array.for-each.js","../../../../node_modules/core-js/internals/correct-prototype-getter.js","../../../../node_modules/core-js/internals/iterators-core.js","../../../../node_modules/core-js/internals/object-get-prototype-of.js","../../../../node_modules/core-js/internals/create-iterator-constructor.js","../../../../node_modules/core-js/internals/object-set-prototype-of.js","../../../../node_modules/core-js/internals/a-possible-prototype.js","../../../../node_modules/core-js/internals/define-iterator.js","../../../../node_modules/core-js/modules/es.array.iterator.js","../../../../node_modules/core-js/modules/es.array.reverse.js","../../../../node_modules/core-js/modules/es.date.to-string.js","../../../../node_modules/core-js/modules/es.json.to-string-tag.js","../../../../node_modules/core-js/modules/es.math.to-string-tag.js","../../../../node_modules/core-js/modules/es.object.create.js","../../../../node_modules/core-js/modules/es.object.define-property.js","../../../../node_modules/core-js/modules/es.object.get-prototype-of.js","../../../../node_modules/core-js/modules/es.object.set-prototype-of.js","../../../../node_modules/core-js/internals/regexp-flags.js","../../../../node_modules/core-js/modules/es.regexp.to-string.js","../../../../node_modules/core-js/internals/string-multibyte.js","../../../../node_modules/core-js/modules/es.string.iterator.js","../../../../node_modules/core-js/internals/dom-iterables.js","../../../../node_modules/core-js/modules/web.dom-collections.for-each.js","../../../../node_modules/core-js/modules/web.dom-collections.iterator.js","../../../../node_modules/regenerator-runtime/runtime.js","../../../../src/editor/extensions/ext-mathjax/ext-mathjax.js","../../../../src/editor/extensions/ext-mathjax/locale/en.js","../../../../src/editor/extensions/ext-mathjax/locale/zh-CN.js","../../../../node_modules/core-js/modules/es.array.concat.js","../../../../node_modules/core-js/modules/es.array.join.js","../../../../node_modules/core-js/internals/array-last-index-of.js","../../../../node_modules/core-js/modules/es.array.last-index-of.js","../../../../node_modules/core-js/modules/es.array.sort.js","../../../../node_modules/core-js/modules/es.array.splice.js","../../../../node_modules/core-js/internals/whitespaces.js","../../../../node_modules/core-js/internals/string-trim.js","../../../../node_modules/core-js/internals/number-parse-float.js","../../../../node_modules/core-js/modules/es.parse-float.js","../../../../node_modules/core-js/internals/number-parse-int.js","../../../../node_modules/core-js/modules/es.parse-int.js","../../../../node_modules/core-js/internals/inherit-if-required.js","../../../../node_modules/core-js/internals/is-regexp.js","../../../../node_modules/core-js/internals/regexp-sticky-helpers.js","../../../../node_modules/core-js/modules/es.regexp.constructor.js","../../../../node_modules/core-js/internals/regexp-exec.js","../../../../node_modules/core-js/modules/es.regexp.exec.js","../../../../node_modules/core-js/internals/fix-regexp-well-known-symbol-logic.js","../../../../node_modules/core-js/internals/advance-string-index.js","../../../../node_modules/core-js/internals/regexp-exec-abstract.js","../../../../node_modules/core-js/modules/es.string.match.js","../../../../node_modules/core-js/modules/es.string.replace.js","../../../../node_modules/core-js/modules/es.string.split.js","../../../../node_modules/core-js/internals/string-trim-forced.js","../../../../node_modules/core-js/modules/es.string.trim.js","../../../../src/editor/extensions/ext-mathjax/mathjax/MathJax.min.js"],"sourcesContent":["var check = function (it) {\n return it && it.Math == Math && it;\n};\n\n// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028\nmodule.exports =\n // eslint-disable-next-line no-undef\n check(typeof globalThis == 'object' && globalThis) ||\n check(typeof window == 'object' && window) ||\n check(typeof self == 'object' && self) ||\n check(typeof global == 'object' && global) ||\n // eslint-disable-next-line no-new-func\n Function('return this')();\n","module.exports = function (exec) {\n try {\n return !!exec();\n } catch (error) {\n return true;\n }\n};\n","var fails = require('../internals/fails');\n\n// Thank's IE8 for his funny defineProperty\nmodule.exports = !fails(function () {\n return Object.defineProperty({}, 1, { get: function () { return 7; } })[1] != 7;\n});\n","'use strict';\nvar nativePropertyIsEnumerable = {}.propertyIsEnumerable;\nvar getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\n\n// Nashorn ~ JDK8 bug\nvar NASHORN_BUG = getOwnPropertyDescriptor && !nativePropertyIsEnumerable.call({ 1: 2 }, 1);\n\n// `Object.prototype.propertyIsEnumerable` method implementation\n// https://tc39.github.io/ecma262/#sec-object.prototype.propertyisenumerable\nexports.f = NASHORN_BUG ? function propertyIsEnumerable(V) {\n var descriptor = getOwnPropertyDescriptor(this, V);\n return !!descriptor && descriptor.enumerable;\n} : nativePropertyIsEnumerable;\n","module.exports = function (bitmap, value) {\n return {\n enumerable: !(bitmap & 1),\n configurable: !(bitmap & 2),\n writable: !(bitmap & 4),\n value: value\n };\n};\n","var toString = {}.toString;\n\nmodule.exports = function (it) {\n return toString.call(it).slice(8, -1);\n};\n","var fails = require('../internals/fails');\nvar classof = require('../internals/classof-raw');\n\nvar split = ''.split;\n\n// fallback for non-array-like ES3 and non-enumerable old V8 strings\nmodule.exports = fails(function () {\n // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346\n // eslint-disable-next-line no-prototype-builtins\n return !Object('z').propertyIsEnumerable(0);\n}) ? function (it) {\n return classof(it) == 'String' ? split.call(it, '') : Object(it);\n} : Object;\n","// `RequireObjectCoercible` abstract operation\n// https://tc39.github.io/ecma262/#sec-requireobjectcoercible\nmodule.exports = function (it) {\n if (it == undefined) throw TypeError(\"Can't call method on \" + it);\n return it;\n};\n","// toObject with fallback for non-array-like ES3 strings\nvar IndexedObject = require('../internals/indexed-object');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\n\nmodule.exports = function (it) {\n return IndexedObject(requireObjectCoercible(it));\n};\n","module.exports = function (it) {\n return typeof it === 'object' ? it !== null : typeof it === 'function';\n};\n","var isObject = require('../internals/is-object');\n\n// `ToPrimitive` abstract operation\n// https://tc39.github.io/ecma262/#sec-toprimitive\n// instead of the ES6 spec version, we didn't implement @@toPrimitive case\n// and the second argument - flag - preferred type is a string\nmodule.exports = function (input, PREFERRED_STRING) {\n if (!isObject(input)) return input;\n var fn, val;\n if (PREFERRED_STRING && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;\n if (typeof (fn = input.valueOf) == 'function' && !isObject(val = fn.call(input))) return val;\n if (!PREFERRED_STRING && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;\n throw TypeError(\"Can't convert object to primitive value\");\n};\n","var hasOwnProperty = {}.hasOwnProperty;\n\nmodule.exports = function (it, key) {\n return hasOwnProperty.call(it, key);\n};\n","var global = require('../internals/global');\nvar isObject = require('../internals/is-object');\n\nvar document = global.document;\n// typeof document.createElement is 'object' in old IE\nvar EXISTS = isObject(document) && isObject(document.createElement);\n\nmodule.exports = function (it) {\n return EXISTS ? document.createElement(it) : {};\n};\n","var DESCRIPTORS = require('../internals/descriptors');\nvar fails = require('../internals/fails');\nvar createElement = require('../internals/document-create-element');\n\n// Thank's IE8 for his funny defineProperty\nmodule.exports = !DESCRIPTORS && !fails(function () {\n return Object.defineProperty(createElement('div'), 'a', {\n get: function () { return 7; }\n }).a != 7;\n});\n","var DESCRIPTORS = require('../internals/descriptors');\nvar propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar toPrimitive = require('../internals/to-primitive');\nvar has = require('../internals/has');\nvar IE8_DOM_DEFINE = require('../internals/ie8-dom-define');\n\nvar nativeGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\n\n// `Object.getOwnPropertyDescriptor` method\n// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptor\nexports.f = DESCRIPTORS ? nativeGetOwnPropertyDescriptor : function getOwnPropertyDescriptor(O, P) {\n O = toIndexedObject(O);\n P = toPrimitive(P, true);\n if (IE8_DOM_DEFINE) try {\n return nativeGetOwnPropertyDescriptor(O, P);\n } catch (error) { /* empty */ }\n if (has(O, P)) return createPropertyDescriptor(!propertyIsEnumerableModule.f.call(O, P), O[P]);\n};\n","var isObject = require('../internals/is-object');\n\nmodule.exports = function (it) {\n if (!isObject(it)) {\n throw TypeError(String(it) + ' is not an object');\n } return it;\n};\n","var DESCRIPTORS = require('../internals/descriptors');\nvar IE8_DOM_DEFINE = require('../internals/ie8-dom-define');\nvar anObject = require('../internals/an-object');\nvar toPrimitive = require('../internals/to-primitive');\n\nvar nativeDefineProperty = Object.defineProperty;\n\n// `Object.defineProperty` method\n// https://tc39.github.io/ecma262/#sec-object.defineproperty\nexports.f = DESCRIPTORS ? nativeDefineProperty : function defineProperty(O, P, Attributes) {\n anObject(O);\n P = toPrimitive(P, true);\n anObject(Attributes);\n if (IE8_DOM_DEFINE) try {\n return nativeDefineProperty(O, P, Attributes);\n } catch (error) { /* empty */ }\n if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported');\n if ('value' in Attributes) O[P] = Attributes.value;\n return O;\n};\n","var DESCRIPTORS = require('../internals/descriptors');\nvar definePropertyModule = require('../internals/object-define-property');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\n\nmodule.exports = DESCRIPTORS ? function (object, key, value) {\n return definePropertyModule.f(object, key, createPropertyDescriptor(1, value));\n} : function (object, key, value) {\n object[key] = value;\n return object;\n};\n","var global = require('../internals/global');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\n\nmodule.exports = function (key, value) {\n try {\n createNonEnumerableProperty(global, key, value);\n } catch (error) {\n global[key] = value;\n } return value;\n};\n","var global = require('../internals/global');\nvar setGlobal = require('../internals/set-global');\n\nvar SHARED = '__core-js_shared__';\nvar store = global[SHARED] || setGlobal(SHARED, {});\n\nmodule.exports = store;\n","var store = require('../internals/shared-store');\n\nvar functionToString = Function.toString;\n\n// this helper broken in `3.4.1-3.4.4`, so we can't use `shared` helper\nif (typeof store.inspectSource != 'function') {\n store.inspectSource = function (it) {\n return functionToString.call(it);\n };\n}\n\nmodule.exports = store.inspectSource;\n","var NATIVE_WEAK_MAP = require('../internals/native-weak-map');\nvar global = require('../internals/global');\nvar isObject = require('../internals/is-object');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar objectHas = require('../internals/has');\nvar sharedKey = require('../internals/shared-key');\nvar hiddenKeys = require('../internals/hidden-keys');\n\nvar WeakMap = global.WeakMap;\nvar set, get, has;\n\nvar enforce = function (it) {\n return has(it) ? get(it) : set(it, {});\n};\n\nvar getterFor = function (TYPE) {\n return function (it) {\n var state;\n if (!isObject(it) || (state = get(it)).type !== TYPE) {\n throw TypeError('Incompatible receiver, ' + TYPE + ' required');\n } return state;\n };\n};\n\nif (NATIVE_WEAK_MAP) {\n var store = new WeakMap();\n var wmget = store.get;\n var wmhas = store.has;\n var wmset = store.set;\n set = function (it, metadata) {\n wmset.call(store, it, metadata);\n return metadata;\n };\n get = function (it) {\n return wmget.call(store, it) || {};\n };\n has = function (it) {\n return wmhas.call(store, it);\n };\n} else {\n var STATE = sharedKey('state');\n hiddenKeys[STATE] = true;\n set = function (it, metadata) {\n createNonEnumerableProperty(it, STATE, metadata);\n return metadata;\n };\n get = function (it) {\n return objectHas(it, STATE) ? it[STATE] : {};\n };\n has = function (it) {\n return objectHas(it, STATE);\n };\n}\n\nmodule.exports = {\n set: set,\n get: get,\n has: has,\n enforce: enforce,\n getterFor: getterFor\n};\n","var global = require('../internals/global');\nvar inspectSource = require('../internals/inspect-source');\n\nvar WeakMap = global.WeakMap;\n\nmodule.exports = typeof WeakMap === 'function' && /native code/.test(inspectSource(WeakMap));\n","var IS_PURE = require('../internals/is-pure');\nvar store = require('../internals/shared-store');\n\n(module.exports = function (key, value) {\n return store[key] || (store[key] = value !== undefined ? value : {});\n})('versions', []).push({\n version: '3.6.5',\n mode: IS_PURE ? 'pure' : 'global',\n copyright: '© 2020 Denis Pushkarev (zloirock.ru)'\n});\n","var id = 0;\nvar postfix = Math.random();\n\nmodule.exports = function (key) {\n return 'Symbol(' + String(key === undefined ? '' : key) + ')_' + (++id + postfix).toString(36);\n};\n","var shared = require('../internals/shared');\nvar uid = require('../internals/uid');\n\nvar keys = shared('keys');\n\nmodule.exports = function (key) {\n return keys[key] || (keys[key] = uid(key));\n};\n","module.exports = {};\n","var anObject = require('../internals/an-object');\nvar defineProperties = require('../internals/object-define-properties');\nvar enumBugKeys = require('../internals/enum-bug-keys');\nvar hiddenKeys = require('../internals/hidden-keys');\nvar html = require('../internals/html');\nvar documentCreateElement = require('../internals/document-create-element');\nvar sharedKey = require('../internals/shared-key');\n\nvar GT = '>';\nvar LT = '<';\nvar PROTOTYPE = 'prototype';\nvar SCRIPT = 'script';\nvar IE_PROTO = sharedKey('IE_PROTO');\n\nvar EmptyConstructor = function () { /* empty */ };\n\nvar scriptTag = function (content) {\n return LT + SCRIPT + GT + content + LT + '/' + SCRIPT + GT;\n};\n\n// Create object with fake `null` prototype: use ActiveX Object with cleared prototype\nvar NullProtoObjectViaActiveX = function (activeXDocument) {\n activeXDocument.write(scriptTag(''));\n activeXDocument.close();\n var temp = activeXDocument.parentWindow.Object;\n activeXDocument = null; // avoid memory leak\n return temp;\n};\n\n// Create object with fake `null` prototype: use iframe Object with cleared prototype\nvar NullProtoObjectViaIFrame = function () {\n // Thrash, waste and sodomy: IE GC bug\n var iframe = documentCreateElement('iframe');\n var JS = 'java' + SCRIPT + ':';\n var iframeDocument;\n iframe.style.display = 'none';\n html.appendChild(iframe);\n // https://github.com/zloirock/core-js/issues/475\n iframe.src = String(JS);\n iframeDocument = iframe.contentWindow.document;\n iframeDocument.open();\n iframeDocument.write(scriptTag('document.F=Object'));\n iframeDocument.close();\n return iframeDocument.F;\n};\n\n// Check for document.domain and active x support\n// No need to use active x approach when document.domain is not set\n// see https://github.com/es-shims/es5-shim/issues/150\n// variation of https://github.com/kitcambridge/es5-shim/commit/4f738ac066346\n// avoid IE GC bug\nvar activeXDocument;\nvar NullProtoObject = function () {\n try {\n /* global ActiveXObject */\n activeXDocument = document.domain && new ActiveXObject('htmlfile');\n } catch (error) { /* ignore */ }\n NullProtoObject = activeXDocument ? NullProtoObjectViaActiveX(activeXDocument) : NullProtoObjectViaIFrame();\n var length = enumBugKeys.length;\n while (length--) delete NullProtoObject[PROTOTYPE][enumBugKeys[length]];\n return NullProtoObject();\n};\n\nhiddenKeys[IE_PROTO] = true;\n\n// `Object.create` method\n// https://tc39.github.io/ecma262/#sec-object.create\nmodule.exports = Object.create || function create(O, Properties) {\n var result;\n if (O !== null) {\n EmptyConstructor[PROTOTYPE] = anObject(O);\n result = new EmptyConstructor();\n EmptyConstructor[PROTOTYPE] = null;\n // add \"__proto__\" for Object.getPrototypeOf polyfill\n result[IE_PROTO] = O;\n } else result = NullProtoObject();\n return Properties === undefined ? result : defineProperties(result, Properties);\n};\n","var global = require('../internals/global');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar has = require('../internals/has');\nvar setGlobal = require('../internals/set-global');\nvar inspectSource = require('../internals/inspect-source');\nvar InternalStateModule = require('../internals/internal-state');\n\nvar getInternalState = InternalStateModule.get;\nvar enforceInternalState = InternalStateModule.enforce;\nvar TEMPLATE = String(String).split('String');\n\n(module.exports = function (O, key, value, options) {\n var unsafe = options ? !!options.unsafe : false;\n var simple = options ? !!options.enumerable : false;\n var noTargetGet = options ? !!options.noTargetGet : false;\n if (typeof value == 'function') {\n if (typeof key == 'string' && !has(value, 'name')) createNonEnumerableProperty(value, 'name', key);\n enforceInternalState(value).source = TEMPLATE.join(typeof key == 'string' ? key : '');\n }\n if (O === global) {\n if (simple) O[key] = value;\n else setGlobal(key, value);\n return;\n } else if (!unsafe) {\n delete O[key];\n } else if (!noTargetGet && O[key]) {\n simple = true;\n }\n if (simple) O[key] = value;\n else createNonEnumerableProperty(O, key, value);\n// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative\n})(Function.prototype, 'toString', function toString() {\n return typeof this == 'function' && getInternalState(this).source || inspectSource(this);\n});\n","var global = require('../internals/global');\n\nmodule.exports = global;\n","var path = require('../internals/path');\nvar global = require('../internals/global');\n\nvar aFunction = function (variable) {\n return typeof variable == 'function' ? variable : undefined;\n};\n\nmodule.exports = function (namespace, method) {\n return arguments.length < 2 ? aFunction(path[namespace]) || aFunction(global[namespace])\n : path[namespace] && path[namespace][method] || global[namespace] && global[namespace][method];\n};\n","var ceil = Math.ceil;\nvar floor = Math.floor;\n\n// `ToInteger` abstract operation\n// https://tc39.github.io/ecma262/#sec-tointeger\nmodule.exports = function (argument) {\n return isNaN(argument = +argument) ? 0 : (argument > 0 ? floor : ceil)(argument);\n};\n","var toInteger = require('../internals/to-integer');\n\nvar min = Math.min;\n\n// `ToLength` abstract operation\n// https://tc39.github.io/ecma262/#sec-tolength\nmodule.exports = function (argument) {\n return argument > 0 ? min(toInteger(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991\n};\n","var toInteger = require('../internals/to-integer');\n\nvar max = Math.max;\nvar min = Math.min;\n\n// Helper for a popular repeating case of the spec:\n// Let integer be ? ToInteger(index).\n// If integer < 0, let result be max((length + integer), 0); else let result be min(integer, length).\nmodule.exports = function (index, length) {\n var integer = toInteger(index);\n return integer < 0 ? max(integer + length, 0) : min(integer, length);\n};\n","var toIndexedObject = require('../internals/to-indexed-object');\nvar toLength = require('../internals/to-length');\nvar toAbsoluteIndex = require('../internals/to-absolute-index');\n\n// `Array.prototype.{ indexOf, includes }` methods implementation\nvar createMethod = function (IS_INCLUDES) {\n return function ($this, el, fromIndex) {\n var O = toIndexedObject($this);\n var length = toLength(O.length);\n var index = toAbsoluteIndex(fromIndex, length);\n var value;\n // Array#includes uses SameValueZero equality algorithm\n // eslint-disable-next-line no-self-compare\n if (IS_INCLUDES && el != el) while (length > index) {\n value = O[index++];\n // eslint-disable-next-line no-self-compare\n if (value != value) return true;\n // Array#indexOf ignores holes, Array#includes - not\n } else for (;length > index; index++) {\n if ((IS_INCLUDES || index in O) && O[index] === el) return IS_INCLUDES || index || 0;\n } return !IS_INCLUDES && -1;\n };\n};\n\nmodule.exports = {\n // `Array.prototype.includes` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.includes\n includes: createMethod(true),\n // `Array.prototype.indexOf` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.indexof\n indexOf: createMethod(false)\n};\n","var has = require('../internals/has');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar indexOf = require('../internals/array-includes').indexOf;\nvar hiddenKeys = require('../internals/hidden-keys');\n\nmodule.exports = function (object, names) {\n var O = toIndexedObject(object);\n var i = 0;\n var result = [];\n var key;\n for (key in O) !has(hiddenKeys, key) && has(O, key) && result.push(key);\n // Don't enum bug & hidden keys\n while (names.length > i) if (has(O, key = names[i++])) {\n ~indexOf(result, key) || result.push(key);\n }\n return result;\n};\n","// IE8- don't enum bug keys\nmodule.exports = [\n 'constructor',\n 'hasOwnProperty',\n 'isPrototypeOf',\n 'propertyIsEnumerable',\n 'toLocaleString',\n 'toString',\n 'valueOf'\n];\n","var internalObjectKeys = require('../internals/object-keys-internal');\nvar enumBugKeys = require('../internals/enum-bug-keys');\n\nvar hiddenKeys = enumBugKeys.concat('length', 'prototype');\n\n// `Object.getOwnPropertyNames` method\n// https://tc39.github.io/ecma262/#sec-object.getownpropertynames\nexports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {\n return internalObjectKeys(O, hiddenKeys);\n};\n","exports.f = Object.getOwnPropertySymbols;\n","var getBuiltIn = require('../internals/get-built-in');\nvar getOwnPropertyNamesModule = require('../internals/object-get-own-property-names');\nvar getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');\nvar anObject = require('../internals/an-object');\n\n// all object keys, includes non-enumerable and symbols\nmodule.exports = getBuiltIn('Reflect', 'ownKeys') || function ownKeys(it) {\n var keys = getOwnPropertyNamesModule.f(anObject(it));\n var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;\n return getOwnPropertySymbols ? keys.concat(getOwnPropertySymbols(it)) : keys;\n};\n","var has = require('../internals/has');\nvar ownKeys = require('../internals/own-keys');\nvar getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');\nvar definePropertyModule = require('../internals/object-define-property');\n\nmodule.exports = function (target, source) {\n var keys = ownKeys(source);\n var defineProperty = definePropertyModule.f;\n var getOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;\n for (var i = 0; i < keys.length; i++) {\n var key = keys[i];\n if (!has(target, key)) defineProperty(target, key, getOwnPropertyDescriptor(source, key));\n }\n};\n","var fails = require('../internals/fails');\n\nvar replacement = /#|\\.prototype\\./;\n\nvar isForced = function (feature, detection) {\n var value = data[normalize(feature)];\n return value == POLYFILL ? true\n : value == NATIVE ? false\n : typeof detection == 'function' ? fails(detection)\n : !!detection;\n};\n\nvar normalize = isForced.normalize = function (string) {\n return String(string).replace(replacement, '.').toLowerCase();\n};\n\nvar data = isForced.data = {};\nvar NATIVE = isForced.NATIVE = 'N';\nvar POLYFILL = isForced.POLYFILL = 'P';\n\nmodule.exports = isForced;\n","var global = require('../internals/global');\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefine = require('../internals/redefine');\nvar setGlobal = require('../internals/set-global');\nvar copyConstructorProperties = require('../internals/copy-constructor-properties');\nvar isForced = require('../internals/is-forced');\n\n/*\n options.target - name of the target object\n options.global - target is the global object\n options.stat - export as static methods of target\n options.proto - export as prototype methods of target\n options.real - real prototype method for the `pure` version\n options.forced - export even if the native feature is available\n options.bind - bind methods to the target, required for the `pure` version\n options.wrap - wrap constructors to preventing global pollution, required for the `pure` version\n options.unsafe - use the simple assignment of property instead of delete + defineProperty\n options.sham - add a flag to not completely full polyfills\n options.enumerable - export as enumerable property\n options.noTargetGet - prevent calling a getter on target\n*/\nmodule.exports = function (options, source) {\n var TARGET = options.target;\n var GLOBAL = options.global;\n var STATIC = options.stat;\n var FORCED, target, key, targetProperty, sourceProperty, descriptor;\n if (GLOBAL) {\n target = global;\n } else if (STATIC) {\n target = global[TARGET] || setGlobal(TARGET, {});\n } else {\n target = (global[TARGET] || {}).prototype;\n }\n if (target) for (key in source) {\n sourceProperty = source[key];\n if (options.noTargetGet) {\n descriptor = getOwnPropertyDescriptor(target, key);\n targetProperty = descriptor && descriptor.value;\n } else targetProperty = target[key];\n FORCED = isForced(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced);\n // contained in target\n if (!FORCED && targetProperty !== undefined) {\n if (typeof sourceProperty === typeof targetProperty) continue;\n copyConstructorProperties(sourceProperty, targetProperty);\n }\n // add a flag to not completely full polyfills\n if (options.sham || (targetProperty && targetProperty.sham)) {\n createNonEnumerableProperty(sourceProperty, 'sham', true);\n }\n // extend global\n redefine(target, key, sourceProperty, options);\n }\n};\n","module.exports = function (it) {\n if (typeof it != 'function') {\n throw TypeError(String(it) + ' is not a function');\n } return it;\n};\n","var aFunction = require('../internals/a-function');\n\n// optional / simple context binding\nmodule.exports = function (fn, that, length) {\n aFunction(fn);\n if (that === undefined) return fn;\n switch (length) {\n case 0: return function () {\n return fn.call(that);\n };\n case 1: return function (a) {\n return fn.call(that, a);\n };\n case 2: return function (a, b) {\n return fn.call(that, a, b);\n };\n case 3: return function (a, b, c) {\n return fn.call(that, a, b, c);\n };\n }\n return function (/* ...args */) {\n return fn.apply(that, arguments);\n };\n};\n","var requireObjectCoercible = require('../internals/require-object-coercible');\n\n// `ToObject` abstract operation\n// https://tc39.github.io/ecma262/#sec-toobject\nmodule.exports = function (argument) {\n return Object(requireObjectCoercible(argument));\n};\n","var classof = require('../internals/classof-raw');\n\n// `IsArray` abstract operation\n// https://tc39.github.io/ecma262/#sec-isarray\nmodule.exports = Array.isArray || function isArray(arg) {\n return classof(arg) == 'Array';\n};\n","var fails = require('../internals/fails');\n\nmodule.exports = !!Object.getOwnPropertySymbols && !fails(function () {\n // Chrome 38 Symbol has incorrect toString conversion\n // eslint-disable-next-line no-undef\n return !String(Symbol());\n});\n","var NATIVE_SYMBOL = require('../internals/native-symbol');\n\nmodule.exports = NATIVE_SYMBOL\n // eslint-disable-next-line no-undef\n && !Symbol.sham\n // eslint-disable-next-line no-undef\n && typeof Symbol.iterator == 'symbol';\n","var global = require('../internals/global');\nvar shared = require('../internals/shared');\nvar has = require('../internals/has');\nvar uid = require('../internals/uid');\nvar NATIVE_SYMBOL = require('../internals/native-symbol');\nvar USE_SYMBOL_AS_UID = require('../internals/use-symbol-as-uid');\n\nvar WellKnownSymbolsStore = shared('wks');\nvar Symbol = global.Symbol;\nvar createWellKnownSymbol = USE_SYMBOL_AS_UID ? Symbol : Symbol && Symbol.withoutSetter || uid;\n\nmodule.exports = function (name) {\n if (!has(WellKnownSymbolsStore, name)) {\n if (NATIVE_SYMBOL && has(Symbol, name)) WellKnownSymbolsStore[name] = Symbol[name];\n else WellKnownSymbolsStore[name] = createWellKnownSymbol('Symbol.' + name);\n } return WellKnownSymbolsStore[name];\n};\n","var isObject = require('../internals/is-object');\nvar isArray = require('../internals/is-array');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar SPECIES = wellKnownSymbol('species');\n\n// `ArraySpeciesCreate` abstract operation\n// https://tc39.github.io/ecma262/#sec-arrayspeciescreate\nmodule.exports = function (originalArray, length) {\n var C;\n if (isArray(originalArray)) {\n C = originalArray.constructor;\n // cross-realm fallback\n if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;\n else if (isObject(C)) {\n C = C[SPECIES];\n if (C === null) C = undefined;\n }\n } return new (C === undefined ? Array : C)(length === 0 ? 0 : length);\n};\n","var bind = require('../internals/function-bind-context');\nvar IndexedObject = require('../internals/indexed-object');\nvar toObject = require('../internals/to-object');\nvar toLength = require('../internals/to-length');\nvar arraySpeciesCreate = require('../internals/array-species-create');\n\nvar push = [].push;\n\n// `Array.prototype.{ forEach, map, filter, some, every, find, findIndex }` methods implementation\nvar createMethod = function (TYPE) {\n var IS_MAP = TYPE == 1;\n var IS_FILTER = TYPE == 2;\n var IS_SOME = TYPE == 3;\n var IS_EVERY = TYPE == 4;\n var IS_FIND_INDEX = TYPE == 6;\n var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;\n return function ($this, callbackfn, that, specificCreate) {\n var O = toObject($this);\n var self = IndexedObject(O);\n var boundFunction = bind(callbackfn, that, 3);\n var length = toLength(self.length);\n var index = 0;\n var create = specificCreate || arraySpeciesCreate;\n var target = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;\n var value, result;\n for (;length > index; index++) if (NO_HOLES || index in self) {\n value = self[index];\n result = boundFunction(value, index, O);\n if (TYPE) {\n if (IS_MAP) target[index] = result; // map\n else if (result) switch (TYPE) {\n case 3: return true; // some\n case 5: return value; // find\n case 6: return index; // findIndex\n case 2: push.call(target, value); // filter\n } else if (IS_EVERY) return false; // every\n }\n }\n return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : target;\n };\n};\n\nmodule.exports = {\n // `Array.prototype.forEach` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.foreach\n forEach: createMethod(0),\n // `Array.prototype.map` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.map\n map: createMethod(1),\n // `Array.prototype.filter` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.filter\n filter: createMethod(2),\n // `Array.prototype.some` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.some\n some: createMethod(3),\n // `Array.prototype.every` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.every\n every: createMethod(4),\n // `Array.prototype.find` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.find\n find: createMethod(5),\n // `Array.prototype.findIndex` method\n // https://tc39.github.io/ecma262/#sec-array.prototype.findIndex\n findIndex: createMethod(6)\n};\n","var internalObjectKeys = require('../internals/object-keys-internal');\nvar enumBugKeys = require('../internals/enum-bug-keys');\n\n// `Object.keys` method\n// https://tc39.github.io/ecma262/#sec-object.keys\nmodule.exports = Object.keys || function keys(O) {\n return internalObjectKeys(O, enumBugKeys);\n};\n","var DESCRIPTORS = require('../internals/descriptors');\nvar definePropertyModule = require('../internals/object-define-property');\nvar anObject = require('../internals/an-object');\nvar objectKeys = require('../internals/object-keys');\n\n// `Object.defineProperties` method\n// https://tc39.github.io/ecma262/#sec-object.defineproperties\nmodule.exports = DESCRIPTORS ? Object.defineProperties : function defineProperties(O, Properties) {\n anObject(O);\n var keys = objectKeys(Properties);\n var length = keys.length;\n var index = 0;\n var key;\n while (length > index) definePropertyModule.f(O, key = keys[index++], Properties[key]);\n return O;\n};\n","var getBuiltIn = require('../internals/get-built-in');\n\nmodule.exports = getBuiltIn('document', 'documentElement');\n","var wellKnownSymbol = require('../internals/well-known-symbol');\nvar create = require('../internals/object-create');\nvar definePropertyModule = require('../internals/object-define-property');\n\nvar UNSCOPABLES = wellKnownSymbol('unscopables');\nvar ArrayPrototype = Array.prototype;\n\n// Array.prototype[@@unscopables]\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\nif (ArrayPrototype[UNSCOPABLES] == undefined) {\n definePropertyModule.f(ArrayPrototype, UNSCOPABLES, {\n configurable: true,\n value: create(null)\n });\n}\n\n// add a key to Array.prototype[@@unscopables]\nmodule.exports = function (key) {\n ArrayPrototype[UNSCOPABLES][key] = true;\n};\n","var DESCRIPTORS = require('../internals/descriptors');\nvar fails = require('../internals/fails');\nvar has = require('../internals/has');\n\nvar defineProperty = Object.defineProperty;\nvar cache = {};\n\nvar thrower = function (it) { throw it; };\n\nmodule.exports = function (METHOD_NAME, options) {\n if (has(cache, METHOD_NAME)) return cache[METHOD_NAME];\n if (!options) options = {};\n var method = [][METHOD_NAME];\n var ACCESSORS = has(options, 'ACCESSORS') ? options.ACCESSORS : false;\n var argument0 = has(options, 0) ? options[0] : thrower;\n var argument1 = has(options, 1) ? options[1] : undefined;\n\n return cache[METHOD_NAME] = !!method && !fails(function () {\n if (ACCESSORS && !DESCRIPTORS) return true;\n var O = { length: -1 };\n\n if (ACCESSORS) defineProperty(O, 1, { enumerable: true, get: thrower });\n else O[1] = 1;\n\n method.call(O, argument0, argument1);\n });\n};\n","'use strict';\nvar $ = require('../internals/export');\nvar $find = require('../internals/array-iteration').find;\nvar addToUnscopables = require('../internals/add-to-unscopables');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar FIND = 'find';\nvar SKIPS_HOLES = true;\n\nvar USES_TO_LENGTH = arrayMethodUsesToLength(FIND);\n\n// Shouldn't skip holes\nif (FIND in []) Array(1)[FIND](function () { SKIPS_HOLES = false; });\n\n// `Array.prototype.find` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.find\n$({ target: 'Array', proto: true, forced: SKIPS_HOLES || !USES_TO_LENGTH }, {\n find: function find(callbackfn /* , that = undefined */) {\n return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\naddToUnscopables(FIND);\n","var getBuiltIn = require('../internals/get-built-in');\n\nmodule.exports = getBuiltIn('navigator', 'userAgent') || '';\n","var global = require('../internals/global');\nvar userAgent = require('../internals/engine-user-agent');\n\nvar process = global.process;\nvar versions = process && process.versions;\nvar v8 = versions && versions.v8;\nvar match, version;\n\nif (v8) {\n match = v8.split('.');\n version = match[0] + match[1];\n} else if (userAgent) {\n match = userAgent.match(/Edge\\/(\\d+)/);\n if (!match || match[1] >= 74) {\n match = userAgent.match(/Chrome\\/(\\d+)/);\n if (match) version = match[1];\n }\n}\n\nmodule.exports = version && +version;\n","var fails = require('../internals/fails');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar V8_VERSION = require('../internals/engine-v8-version');\n\nvar SPECIES = wellKnownSymbol('species');\n\nmodule.exports = function (METHOD_NAME) {\n // We can't use this feature detection in V8 since it causes\n // deoptimization and serious performance degradation\n // https://github.com/zloirock/core-js/issues/677\n return V8_VERSION >= 51 || !fails(function () {\n var array = [];\n var constructor = array.constructor = {};\n constructor[SPECIES] = function () {\n return { foo: 1 };\n };\n return array[METHOD_NAME](Boolean).foo !== 1;\n });\n};\n","'use strict';\nvar $ = require('../internals/export');\nvar $map = require('../internals/array-iteration').map;\nvar arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('map');\n// FF49- issue\nvar USES_TO_LENGTH = arrayMethodUsesToLength('map');\n\n// `Array.prototype.map` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.map\n// with adding support of @@species\n$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {\n map: function map(callbackfn /* , thisArg */) {\n return $map(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n","'use strict';\nvar toPrimitive = require('../internals/to-primitive');\nvar definePropertyModule = require('../internals/object-define-property');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\n\nmodule.exports = function (object, key, value) {\n var propertyKey = toPrimitive(key);\n if (propertyKey in object) definePropertyModule.f(object, propertyKey, createPropertyDescriptor(0, value));\n else object[propertyKey] = value;\n};\n","'use strict';\nvar $ = require('../internals/export');\nvar isObject = require('../internals/is-object');\nvar isArray = require('../internals/is-array');\nvar toAbsoluteIndex = require('../internals/to-absolute-index');\nvar toLength = require('../internals/to-length');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar createProperty = require('../internals/create-property');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('slice');\nvar USES_TO_LENGTH = arrayMethodUsesToLength('slice', { ACCESSORS: true, 0: 0, 1: 2 });\n\nvar SPECIES = wellKnownSymbol('species');\nvar nativeSlice = [].slice;\nvar max = Math.max;\n\n// `Array.prototype.slice` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.slice\n// fallback for not array-like ES3 strings and DOM objects\n$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {\n slice: function slice(start, end) {\n var O = toIndexedObject(this);\n var length = toLength(O.length);\n var k = toAbsoluteIndex(start, length);\n var fin = toAbsoluteIndex(end === undefined ? length : end, length);\n // inline `ArraySpeciesCreate` for usage native `Array#slice` where it's possible\n var Constructor, result, n;\n if (isArray(O)) {\n Constructor = O.constructor;\n // cross-realm fallback\n if (typeof Constructor == 'function' && (Constructor === Array || isArray(Constructor.prototype))) {\n Constructor = undefined;\n } else if (isObject(Constructor)) {\n Constructor = Constructor[SPECIES];\n if (Constructor === null) Constructor = undefined;\n }\n if (Constructor === Array || Constructor === undefined) {\n return nativeSlice.call(O, k, fin);\n }\n }\n result = new (Constructor === undefined ? Array : Constructor)(max(fin - k, 0));\n for (n = 0; k < fin; k++, n++) if (k in O) createProperty(result, n, O[k]);\n result.length = n;\n return result;\n }\n});\n","var DESCRIPTORS = require('../internals/descriptors');\nvar defineProperty = require('../internals/object-define-property').f;\n\nvar FunctionPrototype = Function.prototype;\nvar FunctionPrototypeToString = FunctionPrototype.toString;\nvar nameRE = /^\\s*function ([^ (]*)/;\nvar NAME = 'name';\n\n// Function instances `.name` property\n// https://tc39.github.io/ecma262/#sec-function-instances-name\nif (DESCRIPTORS && !(NAME in FunctionPrototype)) {\n defineProperty(FunctionPrototype, NAME, {\n configurable: true,\n get: function () {\n try {\n return FunctionPrototypeToString.call(this).match(nameRE)[1];\n } catch (error) {\n return '';\n }\n }\n });\n}\n","'use strict';\nvar DESCRIPTORS = require('../internals/descriptors');\nvar fails = require('../internals/fails');\nvar objectKeys = require('../internals/object-keys');\nvar getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');\nvar propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');\nvar toObject = require('../internals/to-object');\nvar IndexedObject = require('../internals/indexed-object');\n\nvar nativeAssign = Object.assign;\nvar defineProperty = Object.defineProperty;\n\n// `Object.assign` method\n// https://tc39.github.io/ecma262/#sec-object.assign\nmodule.exports = !nativeAssign || fails(function () {\n // should have correct order of operations (Edge bug)\n if (DESCRIPTORS && nativeAssign({ b: 1 }, nativeAssign(defineProperty({}, 'a', {\n enumerable: true,\n get: function () {\n defineProperty(this, 'b', {\n value: 3,\n enumerable: false\n });\n }\n }), { b: 2 })).b !== 1) return true;\n // should work with symbols and should have deterministic property order (V8 bug)\n var A = {};\n var B = {};\n // eslint-disable-next-line no-undef\n var symbol = Symbol();\n var alphabet = 'abcdefghijklmnopqrst';\n A[symbol] = 7;\n alphabet.split('').forEach(function (chr) { B[chr] = chr; });\n return nativeAssign({}, A)[symbol] != 7 || objectKeys(nativeAssign({}, B)).join('') != alphabet;\n}) ? function assign(target, source) { // eslint-disable-line no-unused-vars\n var T = toObject(target);\n var argumentsLength = arguments.length;\n var index = 1;\n var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;\n var propertyIsEnumerable = propertyIsEnumerableModule.f;\n while (argumentsLength > index) {\n var S = IndexedObject(arguments[index++]);\n var keys = getOwnPropertySymbols ? objectKeys(S).concat(getOwnPropertySymbols(S)) : objectKeys(S);\n var length = keys.length;\n var j = 0;\n var key;\n while (length > j) {\n key = keys[j++];\n if (!DESCRIPTORS || propertyIsEnumerable.call(S, key)) T[key] = S[key];\n }\n } return T;\n} : nativeAssign;\n","var $ = require('../internals/export');\nvar assign = require('../internals/object-assign');\n\n// `Object.assign` method\n// https://tc39.github.io/ecma262/#sec-object.assign\n$({ target: 'Object', stat: true, forced: Object.assign !== assign }, {\n assign: assign\n});\n","var wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\nvar test = {};\n\ntest[TO_STRING_TAG] = 'z';\n\nmodule.exports = String(test) === '[object z]';\n","var TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');\nvar classofRaw = require('../internals/classof-raw');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\n// ES3 wrong here\nvar CORRECT_ARGUMENTS = classofRaw(function () { return arguments; }()) == 'Arguments';\n\n// fallback for IE11 Script Access Denied error\nvar tryGet = function (it, key) {\n try {\n return it[key];\n } catch (error) { /* empty */ }\n};\n\n// getting tag from ES6+ `Object.prototype.toString`\nmodule.exports = TO_STRING_TAG_SUPPORT ? classofRaw : function (it) {\n var O, tag, result;\n return it === undefined ? 'Undefined' : it === null ? 'Null'\n // @@toStringTag case\n : typeof (tag = tryGet(O = Object(it), TO_STRING_TAG)) == 'string' ? tag\n // builtinTag case\n : CORRECT_ARGUMENTS ? classofRaw(O)\n // ES3 arguments fallback\n : (result = classofRaw(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : result;\n};\n","'use strict';\nvar TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');\nvar classof = require('../internals/classof');\n\n// `Object.prototype.toString` method implementation\n// https://tc39.github.io/ecma262/#sec-object.prototype.tostring\nmodule.exports = TO_STRING_TAG_SUPPORT ? {}.toString : function toString() {\n return '[object ' + classof(this) + ']';\n};\n","var TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');\nvar redefine = require('../internals/redefine');\nvar toString = require('../internals/object-to-string');\n\n// `Object.prototype.toString` method\n// https://tc39.github.io/ecma262/#sec-object.prototype.tostring\nif (!TO_STRING_TAG_SUPPORT) {\n redefine(Object.prototype, 'toString', toString, { unsafe: true });\n}\n","var global = require('../internals/global');\n\nmodule.exports = global.Promise;\n","var defineProperty = require('../internals/object-define-property').f;\nvar has = require('../internals/has');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\n\nmodule.exports = function (it, TAG, STATIC) {\n if (it && !has(it = STATIC ? it : it.prototype, TO_STRING_TAG)) {\n defineProperty(it, TO_STRING_TAG, { configurable: true, value: TAG });\n }\n};\n","'use strict';\nvar getBuiltIn = require('../internals/get-built-in');\nvar definePropertyModule = require('../internals/object-define-property');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar DESCRIPTORS = require('../internals/descriptors');\n\nvar SPECIES = wellKnownSymbol('species');\n\nmodule.exports = function (CONSTRUCTOR_NAME) {\n var Constructor = getBuiltIn(CONSTRUCTOR_NAME);\n var defineProperty = definePropertyModule.f;\n\n if (DESCRIPTORS && Constructor && !Constructor[SPECIES]) {\n defineProperty(Constructor, SPECIES, {\n configurable: true,\n get: function () { return this; }\n });\n }\n};\n","module.exports = {};\n","var wellKnownSymbol = require('../internals/well-known-symbol');\nvar Iterators = require('../internals/iterators');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar ArrayPrototype = Array.prototype;\n\n// check on default Array iterator\nmodule.exports = function (it) {\n return it !== undefined && (Iterators.Array === it || ArrayPrototype[ITERATOR] === it);\n};\n","var classof = require('../internals/classof');\nvar Iterators = require('../internals/iterators');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar ITERATOR = wellKnownSymbol('iterator');\n\nmodule.exports = function (it) {\n if (it != undefined) return it[ITERATOR]\n || it['@@iterator']\n || Iterators[classof(it)];\n};\n","var anObject = require('../internals/an-object');\n\n// call something on iterator step with safe closing on error\nmodule.exports = function (iterator, fn, value, ENTRIES) {\n try {\n return ENTRIES ? fn(anObject(value)[0], value[1]) : fn(value);\n // 7.4.6 IteratorClose(iterator, completion)\n } catch (error) {\n var returnMethod = iterator['return'];\n if (returnMethod !== undefined) anObject(returnMethod.call(iterator));\n throw error;\n }\n};\n","var anObject = require('../internals/an-object');\nvar isArrayIteratorMethod = require('../internals/is-array-iterator-method');\nvar toLength = require('../internals/to-length');\nvar bind = require('../internals/function-bind-context');\nvar getIteratorMethod = require('../internals/get-iterator-method');\nvar callWithSafeIterationClosing = require('../internals/call-with-safe-iteration-closing');\n\nvar Result = function (stopped, result) {\n this.stopped = stopped;\n this.result = result;\n};\n\nvar iterate = module.exports = function (iterable, fn, that, AS_ENTRIES, IS_ITERATOR) {\n var boundFunction = bind(fn, that, AS_ENTRIES ? 2 : 1);\n var iterator, iterFn, index, length, result, next, step;\n\n if (IS_ITERATOR) {\n iterator = iterable;\n } else {\n iterFn = getIteratorMethod(iterable);\n if (typeof iterFn != 'function') throw TypeError('Target is not iterable');\n // optimisation for array iterators\n if (isArrayIteratorMethod(iterFn)) {\n for (index = 0, length = toLength(iterable.length); length > index; index++) {\n result = AS_ENTRIES\n ? boundFunction(anObject(step = iterable[index])[0], step[1])\n : boundFunction(iterable[index]);\n if (result && result instanceof Result) return result;\n } return new Result(false);\n }\n iterator = iterFn.call(iterable);\n }\n\n next = iterator.next;\n while (!(step = next.call(iterator)).done) {\n result = callWithSafeIterationClosing(iterator, boundFunction, step.value, AS_ENTRIES);\n if (typeof result == 'object' && result && result instanceof Result) return result;\n } return new Result(false);\n};\n\niterate.stop = function (result) {\n return new Result(true, result);\n};\n","var wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar SAFE_CLOSING = false;\n\ntry {\n var called = 0;\n var iteratorWithReturn = {\n next: function () {\n return { done: !!called++ };\n },\n 'return': function () {\n SAFE_CLOSING = true;\n }\n };\n iteratorWithReturn[ITERATOR] = function () {\n return this;\n };\n // eslint-disable-next-line no-throw-literal\n Array.from(iteratorWithReturn, function () { throw 2; });\n} catch (error) { /* empty */ }\n\nmodule.exports = function (exec, SKIP_CLOSING) {\n if (!SKIP_CLOSING && !SAFE_CLOSING) return false;\n var ITERATION_SUPPORT = false;\n try {\n var object = {};\n object[ITERATOR] = function () {\n return {\n next: function () {\n return { done: ITERATION_SUPPORT = true };\n }\n };\n };\n exec(object);\n } catch (error) { /* empty */ }\n return ITERATION_SUPPORT;\n};\n","var global = require('../internals/global');\nvar fails = require('../internals/fails');\nvar classof = require('../internals/classof-raw');\nvar bind = require('../internals/function-bind-context');\nvar html = require('../internals/html');\nvar createElement = require('../internals/document-create-element');\nvar IS_IOS = require('../internals/engine-is-ios');\n\nvar location = global.location;\nvar set = global.setImmediate;\nvar clear = global.clearImmediate;\nvar process = global.process;\nvar MessageChannel = global.MessageChannel;\nvar Dispatch = global.Dispatch;\nvar counter = 0;\nvar queue = {};\nvar ONREADYSTATECHANGE = 'onreadystatechange';\nvar defer, channel, port;\n\nvar run = function (id) {\n // eslint-disable-next-line no-prototype-builtins\n if (queue.hasOwnProperty(id)) {\n var fn = queue[id];\n delete queue[id];\n fn();\n }\n};\n\nvar runner = function (id) {\n return function () {\n run(id);\n };\n};\n\nvar listener = function (event) {\n run(event.data);\n};\n\nvar post = function (id) {\n // old engines have not location.origin\n global.postMessage(id + '', location.protocol + '//' + location.host);\n};\n\n// Node.js 0.9+ & IE10+ has setImmediate, otherwise:\nif (!set || !clear) {\n set = function setImmediate(fn) {\n var args = [];\n var i = 1;\n while (arguments.length > i) args.push(arguments[i++]);\n queue[++counter] = function () {\n // eslint-disable-next-line no-new-func\n (typeof fn == 'function' ? fn : Function(fn)).apply(undefined, args);\n };\n defer(counter);\n return counter;\n };\n clear = function clearImmediate(id) {\n delete queue[id];\n };\n // Node.js 0.8-\n if (classof(process) == 'process') {\n defer = function (id) {\n process.nextTick(runner(id));\n };\n // Sphere (JS game engine) Dispatch API\n } else if (Dispatch && Dispatch.now) {\n defer = function (id) {\n Dispatch.now(runner(id));\n };\n // Browsers with MessageChannel, includes WebWorkers\n // except iOS - https://github.com/zloirock/core-js/issues/624\n } else if (MessageChannel && !IS_IOS) {\n channel = new MessageChannel();\n port = channel.port2;\n channel.port1.onmessage = listener;\n defer = bind(port.postMessage, port, 1);\n // Browsers with postMessage, skip WebWorkers\n // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'\n } else if (\n global.addEventListener &&\n typeof postMessage == 'function' &&\n !global.importScripts &&\n !fails(post) &&\n location.protocol !== 'file:'\n ) {\n defer = post;\n global.addEventListener('message', listener, false);\n // IE8-\n } else if (ONREADYSTATECHANGE in createElement('script')) {\n defer = function (id) {\n html.appendChild(createElement('script'))[ONREADYSTATECHANGE] = function () {\n html.removeChild(this);\n run(id);\n };\n };\n // Rest old browsers\n } else {\n defer = function (id) {\n setTimeout(runner(id), 0);\n };\n }\n}\n\nmodule.exports = {\n set: set,\n clear: clear\n};\n","var anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar SPECIES = wellKnownSymbol('species');\n\n// `SpeciesConstructor` abstract operation\n// https://tc39.github.io/ecma262/#sec-speciesconstructor\nmodule.exports = function (O, defaultConstructor) {\n var C = anObject(O).constructor;\n var S;\n return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? defaultConstructor : aFunction(S);\n};\n","var userAgent = require('../internals/engine-user-agent');\n\nmodule.exports = /(iphone|ipod|ipad).*applewebkit/i.test(userAgent);\n","var global = require('../internals/global');\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar classof = require('../internals/classof-raw');\nvar macrotask = require('../internals/task').set;\nvar IS_IOS = require('../internals/engine-is-ios');\n\nvar MutationObserver = global.MutationObserver || global.WebKitMutationObserver;\nvar process = global.process;\nvar Promise = global.Promise;\nvar IS_NODE = classof(process) == 'process';\n// Node.js 11 shows ExperimentalWarning on getting `queueMicrotask`\nvar queueMicrotaskDescriptor = getOwnPropertyDescriptor(global, 'queueMicrotask');\nvar queueMicrotask = queueMicrotaskDescriptor && queueMicrotaskDescriptor.value;\n\nvar flush, head, last, notify, toggle, node, promise, then;\n\n// modern engines have queueMicrotask method\nif (!queueMicrotask) {\n flush = function () {\n var parent, fn;\n if (IS_NODE && (parent = process.domain)) parent.exit();\n while (head) {\n fn = head.fn;\n head = head.next;\n try {\n fn();\n } catch (error) {\n if (head) notify();\n else last = undefined;\n throw error;\n }\n } last = undefined;\n if (parent) parent.enter();\n };\n\n // Node.js\n if (IS_NODE) {\n notify = function () {\n process.nextTick(flush);\n };\n // browsers with MutationObserver, except iOS - https://github.com/zloirock/core-js/issues/339\n } else if (MutationObserver && !IS_IOS) {\n toggle = true;\n node = document.createTextNode('');\n new MutationObserver(flush).observe(node, { characterData: true });\n notify = function () {\n node.data = toggle = !toggle;\n };\n // environments with maybe non-completely correct, but existent Promise\n } else if (Promise && Promise.resolve) {\n // Promise.resolve without an argument throws an error in LG WebOS 2\n promise = Promise.resolve(undefined);\n then = promise.then;\n notify = function () {\n then.call(promise, flush);\n };\n // for other environments - macrotask based on:\n // - setImmediate\n // - MessageChannel\n // - window.postMessag\n // - onreadystatechange\n // - setTimeout\n } else {\n notify = function () {\n // strange IE + webpack dev server bug - use .call(global)\n macrotask.call(global, flush);\n };\n }\n}\n\nmodule.exports = queueMicrotask || function (fn) {\n var task = { fn: fn, next: undefined };\n if (last) last.next = task;\n if (!head) {\n head = task;\n notify();\n } last = task;\n};\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar global = require('../internals/global');\nvar getBuiltIn = require('../internals/get-built-in');\nvar NativePromise = require('../internals/native-promise-constructor');\nvar redefine = require('../internals/redefine');\nvar redefineAll = require('../internals/redefine-all');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar setSpecies = require('../internals/set-species');\nvar isObject = require('../internals/is-object');\nvar aFunction = require('../internals/a-function');\nvar anInstance = require('../internals/an-instance');\nvar classof = require('../internals/classof-raw');\nvar inspectSource = require('../internals/inspect-source');\nvar iterate = require('../internals/iterate');\nvar checkCorrectnessOfIteration = require('../internals/check-correctness-of-iteration');\nvar speciesConstructor = require('../internals/species-constructor');\nvar task = require('../internals/task').set;\nvar microtask = require('../internals/microtask');\nvar promiseResolve = require('../internals/promise-resolve');\nvar hostReportErrors = require('../internals/host-report-errors');\nvar newPromiseCapabilityModule = require('../internals/new-promise-capability');\nvar perform = require('../internals/perform');\nvar InternalStateModule = require('../internals/internal-state');\nvar isForced = require('../internals/is-forced');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar V8_VERSION = require('../internals/engine-v8-version');\n\nvar SPECIES = wellKnownSymbol('species');\nvar PROMISE = 'Promise';\nvar getInternalState = InternalStateModule.get;\nvar setInternalState = InternalStateModule.set;\nvar getInternalPromiseState = InternalStateModule.getterFor(PROMISE);\nvar PromiseConstructor = NativePromise;\nvar TypeError = global.TypeError;\nvar document = global.document;\nvar process = global.process;\nvar $fetch = getBuiltIn('fetch');\nvar newPromiseCapability = newPromiseCapabilityModule.f;\nvar newGenericPromiseCapability = newPromiseCapability;\nvar IS_NODE = classof(process) == 'process';\nvar DISPATCH_EVENT = !!(document && document.createEvent && global.dispatchEvent);\nvar UNHANDLED_REJECTION = 'unhandledrejection';\nvar REJECTION_HANDLED = 'rejectionhandled';\nvar PENDING = 0;\nvar FULFILLED = 1;\nvar REJECTED = 2;\nvar HANDLED = 1;\nvar UNHANDLED = 2;\nvar Internal, OwnPromiseCapability, PromiseWrapper, nativeThen;\n\nvar FORCED = isForced(PROMISE, function () {\n var GLOBAL_CORE_JS_PROMISE = inspectSource(PromiseConstructor) !== String(PromiseConstructor);\n if (!GLOBAL_CORE_JS_PROMISE) {\n // V8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables\n // https://bugs.chromium.org/p/chromium/issues/detail?id=830565\n // We can't detect it synchronously, so just check versions\n if (V8_VERSION === 66) return true;\n // Unhandled rejections tracking support, NodeJS Promise without it fails @@species test\n if (!IS_NODE && typeof PromiseRejectionEvent != 'function') return true;\n }\n // We need Promise#finally in the pure version for preventing prototype pollution\n if (IS_PURE && !PromiseConstructor.prototype['finally']) return true;\n // We can't use @@species feature detection in V8 since it causes\n // deoptimization and performance degradation\n // https://github.com/zloirock/core-js/issues/679\n if (V8_VERSION >= 51 && /native code/.test(PromiseConstructor)) return false;\n // Detect correctness of subclassing with @@species support\n var promise = PromiseConstructor.resolve(1);\n var FakePromise = function (exec) {\n exec(function () { /* empty */ }, function () { /* empty */ });\n };\n var constructor = promise.constructor = {};\n constructor[SPECIES] = FakePromise;\n return !(promise.then(function () { /* empty */ }) instanceof FakePromise);\n});\n\nvar INCORRECT_ITERATION = FORCED || !checkCorrectnessOfIteration(function (iterable) {\n PromiseConstructor.all(iterable)['catch'](function () { /* empty */ });\n});\n\n// helpers\nvar isThenable = function (it) {\n var then;\n return isObject(it) && typeof (then = it.then) == 'function' ? then : false;\n};\n\nvar notify = function (promise, state, isReject) {\n if (state.notified) return;\n state.notified = true;\n var chain = state.reactions;\n microtask(function () {\n var value = state.value;\n var ok = state.state == FULFILLED;\n var index = 0;\n // variable length - can't use forEach\n while (chain.length > index) {\n var reaction = chain[index++];\n var handler = ok ? reaction.ok : reaction.fail;\n var resolve = reaction.resolve;\n var reject = reaction.reject;\n var domain = reaction.domain;\n var result, then, exited;\n try {\n if (handler) {\n if (!ok) {\n if (state.rejection === UNHANDLED) onHandleUnhandled(promise, state);\n state.rejection = HANDLED;\n }\n if (handler === true) result = value;\n else {\n if (domain) domain.enter();\n result = handler(value); // can throw\n if (domain) {\n domain.exit();\n exited = true;\n }\n }\n if (result === reaction.promise) {\n reject(TypeError('Promise-chain cycle'));\n } else if (then = isThenable(result)) {\n then.call(result, resolve, reject);\n } else resolve(result);\n } else reject(value);\n } catch (error) {\n if (domain && !exited) domain.exit();\n reject(error);\n }\n }\n state.reactions = [];\n state.notified = false;\n if (isReject && !state.rejection) onUnhandled(promise, state);\n });\n};\n\nvar dispatchEvent = function (name, promise, reason) {\n var event, handler;\n if (DISPATCH_EVENT) {\n event = document.createEvent('Event');\n event.promise = promise;\n event.reason = reason;\n event.initEvent(name, false, true);\n global.dispatchEvent(event);\n } else event = { promise: promise, reason: reason };\n if (handler = global['on' + name]) handler(event);\n else if (name === UNHANDLED_REJECTION) hostReportErrors('Unhandled promise rejection', reason);\n};\n\nvar onUnhandled = function (promise, state) {\n task.call(global, function () {\n var value = state.value;\n var IS_UNHANDLED = isUnhandled(state);\n var result;\n if (IS_UNHANDLED) {\n result = perform(function () {\n if (IS_NODE) {\n process.emit('unhandledRejection', value, promise);\n } else dispatchEvent(UNHANDLED_REJECTION, promise, value);\n });\n // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should\n state.rejection = IS_NODE || isUnhandled(state) ? UNHANDLED : HANDLED;\n if (result.error) throw result.value;\n }\n });\n};\n\nvar isUnhandled = function (state) {\n return state.rejection !== HANDLED && !state.parent;\n};\n\nvar onHandleUnhandled = function (promise, state) {\n task.call(global, function () {\n if (IS_NODE) {\n process.emit('rejectionHandled', promise);\n } else dispatchEvent(REJECTION_HANDLED, promise, state.value);\n });\n};\n\nvar bind = function (fn, promise, state, unwrap) {\n return function (value) {\n fn(promise, state, value, unwrap);\n };\n};\n\nvar internalReject = function (promise, state, value, unwrap) {\n if (state.done) return;\n state.done = true;\n if (unwrap) state = unwrap;\n state.value = value;\n state.state = REJECTED;\n notify(promise, state, true);\n};\n\nvar internalResolve = function (promise, state, value, unwrap) {\n if (state.done) return;\n state.done = true;\n if (unwrap) state = unwrap;\n try {\n if (promise === value) throw TypeError(\"Promise can't be resolved itself\");\n var then = isThenable(value);\n if (then) {\n microtask(function () {\n var wrapper = { done: false };\n try {\n then.call(value,\n bind(internalResolve, promise, wrapper, state),\n bind(internalReject, promise, wrapper, state)\n );\n } catch (error) {\n internalReject(promise, wrapper, error, state);\n }\n });\n } else {\n state.value = value;\n state.state = FULFILLED;\n notify(promise, state, false);\n }\n } catch (error) {\n internalReject(promise, { done: false }, error, state);\n }\n};\n\n// constructor polyfill\nif (FORCED) {\n // 25.4.3.1 Promise(executor)\n PromiseConstructor = function Promise(executor) {\n anInstance(this, PromiseConstructor, PROMISE);\n aFunction(executor);\n Internal.call(this);\n var state = getInternalState(this);\n try {\n executor(bind(internalResolve, this, state), bind(internalReject, this, state));\n } catch (error) {\n internalReject(this, state, error);\n }\n };\n // eslint-disable-next-line no-unused-vars\n Internal = function Promise(executor) {\n setInternalState(this, {\n type: PROMISE,\n done: false,\n notified: false,\n parent: false,\n reactions: [],\n rejection: false,\n state: PENDING,\n value: undefined\n });\n };\n Internal.prototype = redefineAll(PromiseConstructor.prototype, {\n // `Promise.prototype.then` method\n // https://tc39.github.io/ecma262/#sec-promise.prototype.then\n then: function then(onFulfilled, onRejected) {\n var state = getInternalPromiseState(this);\n var reaction = newPromiseCapability(speciesConstructor(this, PromiseConstructor));\n reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;\n reaction.fail = typeof onRejected == 'function' && onRejected;\n reaction.domain = IS_NODE ? process.domain : undefined;\n state.parent = true;\n state.reactions.push(reaction);\n if (state.state != PENDING) notify(this, state, false);\n return reaction.promise;\n },\n // `Promise.prototype.catch` method\n // https://tc39.github.io/ecma262/#sec-promise.prototype.catch\n 'catch': function (onRejected) {\n return this.then(undefined, onRejected);\n }\n });\n OwnPromiseCapability = function () {\n var promise = new Internal();\n var state = getInternalState(promise);\n this.promise = promise;\n this.resolve = bind(internalResolve, promise, state);\n this.reject = bind(internalReject, promise, state);\n };\n newPromiseCapabilityModule.f = newPromiseCapability = function (C) {\n return C === PromiseConstructor || C === PromiseWrapper\n ? new OwnPromiseCapability(C)\n : newGenericPromiseCapability(C);\n };\n\n if (!IS_PURE && typeof NativePromise == 'function') {\n nativeThen = NativePromise.prototype.then;\n\n // wrap native Promise#then for native async functions\n redefine(NativePromise.prototype, 'then', function then(onFulfilled, onRejected) {\n var that = this;\n return new PromiseConstructor(function (resolve, reject) {\n nativeThen.call(that, resolve, reject);\n }).then(onFulfilled, onRejected);\n // https://github.com/zloirock/core-js/issues/640\n }, { unsafe: true });\n\n // wrap fetch result\n if (typeof $fetch == 'function') $({ global: true, enumerable: true, forced: true }, {\n // eslint-disable-next-line no-unused-vars\n fetch: function fetch(input /* , init */) {\n return promiseResolve(PromiseConstructor, $fetch.apply(global, arguments));\n }\n });\n }\n}\n\n$({ global: true, wrap: true, forced: FORCED }, {\n Promise: PromiseConstructor\n});\n\nsetToStringTag(PromiseConstructor, PROMISE, false, true);\nsetSpecies(PROMISE);\n\nPromiseWrapper = getBuiltIn(PROMISE);\n\n// statics\n$({ target: PROMISE, stat: true, forced: FORCED }, {\n // `Promise.reject` method\n // https://tc39.github.io/ecma262/#sec-promise.reject\n reject: function reject(r) {\n var capability = newPromiseCapability(this);\n capability.reject.call(undefined, r);\n return capability.promise;\n }\n});\n\n$({ target: PROMISE, stat: true, forced: IS_PURE || FORCED }, {\n // `Promise.resolve` method\n // https://tc39.github.io/ecma262/#sec-promise.resolve\n resolve: function resolve(x) {\n return promiseResolve(IS_PURE && this === PromiseWrapper ? PromiseConstructor : this, x);\n }\n});\n\n$({ target: PROMISE, stat: true, forced: INCORRECT_ITERATION }, {\n // `Promise.all` method\n // https://tc39.github.io/ecma262/#sec-promise.all\n all: function all(iterable) {\n var C = this;\n var capability = newPromiseCapability(C);\n var resolve = capability.resolve;\n var reject = capability.reject;\n var result = perform(function () {\n var $promiseResolve = aFunction(C.resolve);\n var values = [];\n var counter = 0;\n var remaining = 1;\n iterate(iterable, function (promise) {\n var index = counter++;\n var alreadyCalled = false;\n values.push(undefined);\n remaining++;\n $promiseResolve.call(C, promise).then(function (value) {\n if (alreadyCalled) return;\n alreadyCalled = true;\n values[index] = value;\n --remaining || resolve(values);\n }, reject);\n });\n --remaining || resolve(values);\n });\n if (result.error) reject(result.value);\n return capability.promise;\n },\n // `Promise.race` method\n // https://tc39.github.io/ecma262/#sec-promise.race\n race: function race(iterable) {\n var C = this;\n var capability = newPromiseCapability(C);\n var reject = capability.reject;\n var result = perform(function () {\n var $promiseResolve = aFunction(C.resolve);\n iterate(iterable, function (promise) {\n $promiseResolve.call(C, promise).then(capability.resolve, reject);\n });\n });\n if (result.error) reject(result.value);\n return capability.promise;\n }\n});\n","'use strict';\nvar aFunction = require('../internals/a-function');\n\nvar PromiseCapability = function (C) {\n var resolve, reject;\n this.promise = new C(function ($$resolve, $$reject) {\n if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');\n resolve = $$resolve;\n reject = $$reject;\n });\n this.resolve = aFunction(resolve);\n this.reject = aFunction(reject);\n};\n\n// 25.4.1.5 NewPromiseCapability(C)\nmodule.exports.f = function (C) {\n return new PromiseCapability(C);\n};\n","var anObject = require('../internals/an-object');\nvar isObject = require('../internals/is-object');\nvar newPromiseCapability = require('../internals/new-promise-capability');\n\nmodule.exports = function (C, x) {\n anObject(C);\n if (isObject(x) && x.constructor === C) return x;\n var promiseCapability = newPromiseCapability.f(C);\n var resolve = promiseCapability.resolve;\n resolve(x);\n return promiseCapability.promise;\n};\n","module.exports = function (exec) {\n try {\n return { error: false, value: exec() };\n } catch (error) {\n return { error: true, value: error };\n }\n};\n","var global = require('../internals/global');\n\nmodule.exports = function (a, b) {\n var console = global.console;\n if (console && console.error) {\n arguments.length === 1 ? console.error(a) : console.error(a, b);\n }\n};\n","module.exports = function (it, Constructor, name) {\n if (!(it instanceof Constructor)) {\n throw TypeError('Incorrect ' + (name ? name + ' ' : '') + 'invocation');\n } return it;\n};\n","var redefine = require('../internals/redefine');\n\nmodule.exports = function (target, src, options) {\n for (var key in src) redefine(target, key, src[key], options);\n return target;\n};\n","var toIndexedObject = require('../internals/to-indexed-object');\nvar nativeGetOwnPropertyNames = require('../internals/object-get-own-property-names').f;\n\nvar toString = {}.toString;\n\nvar windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames\n ? Object.getOwnPropertyNames(window) : [];\n\nvar getWindowNames = function (it) {\n try {\n return nativeGetOwnPropertyNames(it);\n } catch (error) {\n return windowNames.slice();\n }\n};\n\n// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window\nmodule.exports.f = function getOwnPropertyNames(it) {\n return windowNames && toString.call(it) == '[object Window]'\n ? getWindowNames(it)\n : nativeGetOwnPropertyNames(toIndexedObject(it));\n};\n","var wellKnownSymbol = require('../internals/well-known-symbol');\n\nexports.f = wellKnownSymbol;\n","var path = require('../internals/path');\nvar has = require('../internals/has');\nvar wrappedWellKnownSymbolModule = require('../internals/well-known-symbol-wrapped');\nvar defineProperty = require('../internals/object-define-property').f;\n\nmodule.exports = function (NAME) {\n var Symbol = path.Symbol || (path.Symbol = {});\n if (!has(Symbol, NAME)) defineProperty(Symbol, NAME, {\n value: wrappedWellKnownSymbolModule.f(NAME)\n });\n};\n","'use strict';\nvar $ = require('../internals/export');\nvar global = require('../internals/global');\nvar getBuiltIn = require('../internals/get-built-in');\nvar IS_PURE = require('../internals/is-pure');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar NATIVE_SYMBOL = require('../internals/native-symbol');\nvar USE_SYMBOL_AS_UID = require('../internals/use-symbol-as-uid');\nvar fails = require('../internals/fails');\nvar has = require('../internals/has');\nvar isArray = require('../internals/is-array');\nvar isObject = require('../internals/is-object');\nvar anObject = require('../internals/an-object');\nvar toObject = require('../internals/to-object');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar toPrimitive = require('../internals/to-primitive');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\nvar nativeObjectCreate = require('../internals/object-create');\nvar objectKeys = require('../internals/object-keys');\nvar getOwnPropertyNamesModule = require('../internals/object-get-own-property-names');\nvar getOwnPropertyNamesExternal = require('../internals/object-get-own-property-names-external');\nvar getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');\nvar getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');\nvar definePropertyModule = require('../internals/object-define-property');\nvar propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefine = require('../internals/redefine');\nvar shared = require('../internals/shared');\nvar sharedKey = require('../internals/shared-key');\nvar hiddenKeys = require('../internals/hidden-keys');\nvar uid = require('../internals/uid');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar wrappedWellKnownSymbolModule = require('../internals/well-known-symbol-wrapped');\nvar defineWellKnownSymbol = require('../internals/define-well-known-symbol');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar InternalStateModule = require('../internals/internal-state');\nvar $forEach = require('../internals/array-iteration').forEach;\n\nvar HIDDEN = sharedKey('hidden');\nvar SYMBOL = 'Symbol';\nvar PROTOTYPE = 'prototype';\nvar TO_PRIMITIVE = wellKnownSymbol('toPrimitive');\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(SYMBOL);\nvar ObjectPrototype = Object[PROTOTYPE];\nvar $Symbol = global.Symbol;\nvar $stringify = getBuiltIn('JSON', 'stringify');\nvar nativeGetOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;\nvar nativeDefineProperty = definePropertyModule.f;\nvar nativeGetOwnPropertyNames = getOwnPropertyNamesExternal.f;\nvar nativePropertyIsEnumerable = propertyIsEnumerableModule.f;\nvar AllSymbols = shared('symbols');\nvar ObjectPrototypeSymbols = shared('op-symbols');\nvar StringToSymbolRegistry = shared('string-to-symbol-registry');\nvar SymbolToStringRegistry = shared('symbol-to-string-registry');\nvar WellKnownSymbolsStore = shared('wks');\nvar QObject = global.QObject;\n// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173\nvar USE_SETTER = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;\n\n// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687\nvar setSymbolDescriptor = DESCRIPTORS && fails(function () {\n return nativeObjectCreate(nativeDefineProperty({}, 'a', {\n get: function () { return nativeDefineProperty(this, 'a', { value: 7 }).a; }\n })).a != 7;\n}) ? function (O, P, Attributes) {\n var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor(ObjectPrototype, P);\n if (ObjectPrototypeDescriptor) delete ObjectPrototype[P];\n nativeDefineProperty(O, P, Attributes);\n if (ObjectPrototypeDescriptor && O !== ObjectPrototype) {\n nativeDefineProperty(ObjectPrototype, P, ObjectPrototypeDescriptor);\n }\n} : nativeDefineProperty;\n\nvar wrap = function (tag, description) {\n var symbol = AllSymbols[tag] = nativeObjectCreate($Symbol[PROTOTYPE]);\n setInternalState(symbol, {\n type: SYMBOL,\n tag: tag,\n description: description\n });\n if (!DESCRIPTORS) symbol.description = description;\n return symbol;\n};\n\nvar isSymbol = USE_SYMBOL_AS_UID ? function (it) {\n return typeof it == 'symbol';\n} : function (it) {\n return Object(it) instanceof $Symbol;\n};\n\nvar $defineProperty = function defineProperty(O, P, Attributes) {\n if (O === ObjectPrototype) $defineProperty(ObjectPrototypeSymbols, P, Attributes);\n anObject(O);\n var key = toPrimitive(P, true);\n anObject(Attributes);\n if (has(AllSymbols, key)) {\n if (!Attributes.enumerable) {\n if (!has(O, HIDDEN)) nativeDefineProperty(O, HIDDEN, createPropertyDescriptor(1, {}));\n O[HIDDEN][key] = true;\n } else {\n if (has(O, HIDDEN) && O[HIDDEN][key]) O[HIDDEN][key] = false;\n Attributes = nativeObjectCreate(Attributes, { enumerable: createPropertyDescriptor(0, false) });\n } return setSymbolDescriptor(O, key, Attributes);\n } return nativeDefineProperty(O, key, Attributes);\n};\n\nvar $defineProperties = function defineProperties(O, Properties) {\n anObject(O);\n var properties = toIndexedObject(Properties);\n var keys = objectKeys(properties).concat($getOwnPropertySymbols(properties));\n $forEach(keys, function (key) {\n if (!DESCRIPTORS || $propertyIsEnumerable.call(properties, key)) $defineProperty(O, key, properties[key]);\n });\n return O;\n};\n\nvar $create = function create(O, Properties) {\n return Properties === undefined ? nativeObjectCreate(O) : $defineProperties(nativeObjectCreate(O), Properties);\n};\n\nvar $propertyIsEnumerable = function propertyIsEnumerable(V) {\n var P = toPrimitive(V, true);\n var enumerable = nativePropertyIsEnumerable.call(this, P);\n if (this === ObjectPrototype && has(AllSymbols, P) && !has(ObjectPrototypeSymbols, P)) return false;\n return enumerable || !has(this, P) || !has(AllSymbols, P) || has(this, HIDDEN) && this[HIDDEN][P] ? enumerable : true;\n};\n\nvar $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(O, P) {\n var it = toIndexedObject(O);\n var key = toPrimitive(P, true);\n if (it === ObjectPrototype && has(AllSymbols, key) && !has(ObjectPrototypeSymbols, key)) return;\n var descriptor = nativeGetOwnPropertyDescriptor(it, key);\n if (descriptor && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) {\n descriptor.enumerable = true;\n }\n return descriptor;\n};\n\nvar $getOwnPropertyNames = function getOwnPropertyNames(O) {\n var names = nativeGetOwnPropertyNames(toIndexedObject(O));\n var result = [];\n $forEach(names, function (key) {\n if (!has(AllSymbols, key) && !has(hiddenKeys, key)) result.push(key);\n });\n return result;\n};\n\nvar $getOwnPropertySymbols = function getOwnPropertySymbols(O) {\n var IS_OBJECT_PROTOTYPE = O === ObjectPrototype;\n var names = nativeGetOwnPropertyNames(IS_OBJECT_PROTOTYPE ? ObjectPrototypeSymbols : toIndexedObject(O));\n var result = [];\n $forEach(names, function (key) {\n if (has(AllSymbols, key) && (!IS_OBJECT_PROTOTYPE || has(ObjectPrototype, key))) {\n result.push(AllSymbols[key]);\n }\n });\n return result;\n};\n\n// `Symbol` constructor\n// https://tc39.github.io/ecma262/#sec-symbol-constructor\nif (!NATIVE_SYMBOL) {\n $Symbol = function Symbol() {\n if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor');\n var description = !arguments.length || arguments[0] === undefined ? undefined : String(arguments[0]);\n var tag = uid(description);\n var setter = function (value) {\n if (this === ObjectPrototype) setter.call(ObjectPrototypeSymbols, value);\n if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;\n setSymbolDescriptor(this, tag, createPropertyDescriptor(1, value));\n };\n if (DESCRIPTORS && USE_SETTER) setSymbolDescriptor(ObjectPrototype, tag, { configurable: true, set: setter });\n return wrap(tag, description);\n };\n\n redefine($Symbol[PROTOTYPE], 'toString', function toString() {\n return getInternalState(this).tag;\n });\n\n redefine($Symbol, 'withoutSetter', function (description) {\n return wrap(uid(description), description);\n });\n\n propertyIsEnumerableModule.f = $propertyIsEnumerable;\n definePropertyModule.f = $defineProperty;\n getOwnPropertyDescriptorModule.f = $getOwnPropertyDescriptor;\n getOwnPropertyNamesModule.f = getOwnPropertyNamesExternal.f = $getOwnPropertyNames;\n getOwnPropertySymbolsModule.f = $getOwnPropertySymbols;\n\n wrappedWellKnownSymbolModule.f = function (name) {\n return wrap(wellKnownSymbol(name), name);\n };\n\n if (DESCRIPTORS) {\n // https://github.com/tc39/proposal-Symbol-description\n nativeDefineProperty($Symbol[PROTOTYPE], 'description', {\n configurable: true,\n get: function description() {\n return getInternalState(this).description;\n }\n });\n if (!IS_PURE) {\n redefine(ObjectPrototype, 'propertyIsEnumerable', $propertyIsEnumerable, { unsafe: true });\n }\n }\n}\n\n$({ global: true, wrap: true, forced: !NATIVE_SYMBOL, sham: !NATIVE_SYMBOL }, {\n Symbol: $Symbol\n});\n\n$forEach(objectKeys(WellKnownSymbolsStore), function (name) {\n defineWellKnownSymbol(name);\n});\n\n$({ target: SYMBOL, stat: true, forced: !NATIVE_SYMBOL }, {\n // `Symbol.for` method\n // https://tc39.github.io/ecma262/#sec-symbol.for\n 'for': function (key) {\n var string = String(key);\n if (has(StringToSymbolRegistry, string)) return StringToSymbolRegistry[string];\n var symbol = $Symbol(string);\n StringToSymbolRegistry[string] = symbol;\n SymbolToStringRegistry[symbol] = string;\n return symbol;\n },\n // `Symbol.keyFor` method\n // https://tc39.github.io/ecma262/#sec-symbol.keyfor\n keyFor: function keyFor(sym) {\n if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol');\n if (has(SymbolToStringRegistry, sym)) return SymbolToStringRegistry[sym];\n },\n useSetter: function () { USE_SETTER = true; },\n useSimple: function () { USE_SETTER = false; }\n});\n\n$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL, sham: !DESCRIPTORS }, {\n // `Object.create` method\n // https://tc39.github.io/ecma262/#sec-object.create\n create: $create,\n // `Object.defineProperty` method\n // https://tc39.github.io/ecma262/#sec-object.defineproperty\n defineProperty: $defineProperty,\n // `Object.defineProperties` method\n // https://tc39.github.io/ecma262/#sec-object.defineproperties\n defineProperties: $defineProperties,\n // `Object.getOwnPropertyDescriptor` method\n // https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptors\n getOwnPropertyDescriptor: $getOwnPropertyDescriptor\n});\n\n$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL }, {\n // `Object.getOwnPropertyNames` method\n // https://tc39.github.io/ecma262/#sec-object.getownpropertynames\n getOwnPropertyNames: $getOwnPropertyNames,\n // `Object.getOwnPropertySymbols` method\n // https://tc39.github.io/ecma262/#sec-object.getownpropertysymbols\n getOwnPropertySymbols: $getOwnPropertySymbols\n});\n\n// Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives\n// https://bugs.chromium.org/p/v8/issues/detail?id=3443\n$({ target: 'Object', stat: true, forced: fails(function () { getOwnPropertySymbolsModule.f(1); }) }, {\n getOwnPropertySymbols: function getOwnPropertySymbols(it) {\n return getOwnPropertySymbolsModule.f(toObject(it));\n }\n});\n\n// `JSON.stringify` method behavior with symbols\n// https://tc39.github.io/ecma262/#sec-json.stringify\nif ($stringify) {\n var FORCED_JSON_STRINGIFY = !NATIVE_SYMBOL || fails(function () {\n var symbol = $Symbol();\n // MS Edge converts symbol values to JSON as {}\n return $stringify([symbol]) != '[null]'\n // WebKit converts symbol values to JSON as null\n || $stringify({ a: symbol }) != '{}'\n // V8 throws on boxed symbols\n || $stringify(Object(symbol)) != '{}';\n });\n\n $({ target: 'JSON', stat: true, forced: FORCED_JSON_STRINGIFY }, {\n // eslint-disable-next-line no-unused-vars\n stringify: function stringify(it, replacer, space) {\n var args = [it];\n var index = 1;\n var $replacer;\n while (arguments.length > index) args.push(arguments[index++]);\n $replacer = replacer;\n if (!isObject(replacer) && it === undefined || isSymbol(it)) return; // IE8 returns string on undefined\n if (!isArray(replacer)) replacer = function (key, value) {\n if (typeof $replacer == 'function') value = $replacer.call(this, key, value);\n if (!isSymbol(value)) return value;\n };\n args[1] = replacer;\n return $stringify.apply(null, args);\n }\n });\n}\n\n// `Symbol.prototype[@@toPrimitive]` method\n// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@toprimitive\nif (!$Symbol[PROTOTYPE][TO_PRIMITIVE]) {\n createNonEnumerableProperty($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);\n}\n// `Symbol.prototype[@@toStringTag]` property\n// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@tostringtag\nsetToStringTag($Symbol, SYMBOL);\n\nhiddenKeys[HIDDEN] = true;\n","// `Symbol.prototype.description` getter\n// https://tc39.github.io/ecma262/#sec-symbol.prototype.description\n'use strict';\nvar $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar global = require('../internals/global');\nvar has = require('../internals/has');\nvar isObject = require('../internals/is-object');\nvar defineProperty = require('../internals/object-define-property').f;\nvar copyConstructorProperties = require('../internals/copy-constructor-properties');\n\nvar NativeSymbol = global.Symbol;\n\nif (DESCRIPTORS && typeof NativeSymbol == 'function' && (!('description' in NativeSymbol.prototype) ||\n // Safari 12 bug\n NativeSymbol().description !== undefined\n)) {\n var EmptyStringDescriptionStore = {};\n // wrap Symbol constructor for correct work with undefined description\n var SymbolWrapper = function Symbol() {\n var description = arguments.length < 1 || arguments[0] === undefined ? undefined : String(arguments[0]);\n var result = this instanceof SymbolWrapper\n ? new NativeSymbol(description)\n // in Edge 13, String(Symbol(undefined)) === 'Symbol(undefined)'\n : description === undefined ? NativeSymbol() : NativeSymbol(description);\n if (description === '') EmptyStringDescriptionStore[result] = true;\n return result;\n };\n copyConstructorProperties(SymbolWrapper, NativeSymbol);\n var symbolPrototype = SymbolWrapper.prototype = NativeSymbol.prototype;\n symbolPrototype.constructor = SymbolWrapper;\n\n var symbolToString = symbolPrototype.toString;\n var native = String(NativeSymbol('test')) == 'Symbol(test)';\n var regexp = /^Symbol\\((.*)\\)[^)]+$/;\n defineProperty(symbolPrototype, 'description', {\n configurable: true,\n get: function description() {\n var symbol = isObject(this) ? this.valueOf() : this;\n var string = symbolToString.call(symbol);\n if (has(EmptyStringDescriptionStore, symbol)) return '';\n var desc = native ? string.slice(7, -1) : string.replace(regexp, '$1');\n return desc === '' ? undefined : desc;\n }\n });\n\n $({ global: true, forced: true }, {\n Symbol: SymbolWrapper\n });\n}\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.asyncIterator` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.asynciterator\ndefineWellKnownSymbol('asyncIterator');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.iterator` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.iterator\ndefineWellKnownSymbol('iterator');\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.toStringTag` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.tostringtag\ndefineWellKnownSymbol('toStringTag');\n","'use strict';\nvar fails = require('../internals/fails');\n\nmodule.exports = function (METHOD_NAME, argument) {\n var method = [][METHOD_NAME];\n return !!method && fails(function () {\n // eslint-disable-next-line no-useless-call,no-throw-literal\n method.call(null, argument || function () { throw 1; }, 1);\n });\n};\n","'use strict';\nvar $forEach = require('../internals/array-iteration').forEach;\nvar arrayMethodIsStrict = require('../internals/array-method-is-strict');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar STRICT_METHOD = arrayMethodIsStrict('forEach');\nvar USES_TO_LENGTH = arrayMethodUsesToLength('forEach');\n\n// `Array.prototype.forEach` method implementation\n// https://tc39.github.io/ecma262/#sec-array.prototype.foreach\nmodule.exports = (!STRICT_METHOD || !USES_TO_LENGTH) ? function forEach(callbackfn /* , thisArg */) {\n return $forEach(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n} : [].forEach;\n","'use strict';\nvar $ = require('../internals/export');\nvar forEach = require('../internals/array-for-each');\n\n// `Array.prototype.forEach` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.foreach\n$({ target: 'Array', proto: true, forced: [].forEach != forEach }, {\n forEach: forEach\n});\n","var fails = require('../internals/fails');\n\nmodule.exports = !fails(function () {\n function F() { /* empty */ }\n F.prototype.constructor = null;\n return Object.getPrototypeOf(new F()) !== F.prototype;\n});\n","'use strict';\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar has = require('../internals/has');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar IS_PURE = require('../internals/is-pure');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar BUGGY_SAFARI_ITERATORS = false;\n\nvar returnThis = function () { return this; };\n\n// `%IteratorPrototype%` object\n// https://tc39.github.io/ecma262/#sec-%iteratorprototype%-object\nvar IteratorPrototype, PrototypeOfArrayIteratorPrototype, arrayIterator;\n\nif ([].keys) {\n arrayIterator = [].keys();\n // Safari 8 has buggy iterators w/o `next`\n if (!('next' in arrayIterator)) BUGGY_SAFARI_ITERATORS = true;\n else {\n PrototypeOfArrayIteratorPrototype = getPrototypeOf(getPrototypeOf(arrayIterator));\n if (PrototypeOfArrayIteratorPrototype !== Object.prototype) IteratorPrototype = PrototypeOfArrayIteratorPrototype;\n }\n}\n\nif (IteratorPrototype == undefined) IteratorPrototype = {};\n\n// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()\nif (!IS_PURE && !has(IteratorPrototype, ITERATOR)) {\n createNonEnumerableProperty(IteratorPrototype, ITERATOR, returnThis);\n}\n\nmodule.exports = {\n IteratorPrototype: IteratorPrototype,\n BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS\n};\n","var has = require('../internals/has');\nvar toObject = require('../internals/to-object');\nvar sharedKey = require('../internals/shared-key');\nvar CORRECT_PROTOTYPE_GETTER = require('../internals/correct-prototype-getter');\n\nvar IE_PROTO = sharedKey('IE_PROTO');\nvar ObjectPrototype = Object.prototype;\n\n// `Object.getPrototypeOf` method\n// https://tc39.github.io/ecma262/#sec-object.getprototypeof\nmodule.exports = CORRECT_PROTOTYPE_GETTER ? Object.getPrototypeOf : function (O) {\n O = toObject(O);\n if (has(O, IE_PROTO)) return O[IE_PROTO];\n if (typeof O.constructor == 'function' && O instanceof O.constructor) {\n return O.constructor.prototype;\n } return O instanceof Object ? ObjectPrototype : null;\n};\n","'use strict';\nvar IteratorPrototype = require('../internals/iterators-core').IteratorPrototype;\nvar create = require('../internals/object-create');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar Iterators = require('../internals/iterators');\n\nvar returnThis = function () { return this; };\n\nmodule.exports = function (IteratorConstructor, NAME, next) {\n var TO_STRING_TAG = NAME + ' Iterator';\n IteratorConstructor.prototype = create(IteratorPrototype, { next: createPropertyDescriptor(1, next) });\n setToStringTag(IteratorConstructor, TO_STRING_TAG, false, true);\n Iterators[TO_STRING_TAG] = returnThis;\n return IteratorConstructor;\n};\n","var anObject = require('../internals/an-object');\nvar aPossiblePrototype = require('../internals/a-possible-prototype');\n\n// `Object.setPrototypeOf` method\n// https://tc39.github.io/ecma262/#sec-object.setprototypeof\n// Works with __proto__ only. Old v8 can't work with null proto objects.\n/* eslint-disable no-proto */\nmodule.exports = Object.setPrototypeOf || ('__proto__' in {} ? function () {\n var CORRECT_SETTER = false;\n var test = {};\n var setter;\n try {\n setter = Object.getOwnPropertyDescriptor(Object.prototype, '__proto__').set;\n setter.call(test, []);\n CORRECT_SETTER = test instanceof Array;\n } catch (error) { /* empty */ }\n return function setPrototypeOf(O, proto) {\n anObject(O);\n aPossiblePrototype(proto);\n if (CORRECT_SETTER) setter.call(O, proto);\n else O.__proto__ = proto;\n return O;\n };\n}() : undefined);\n","var isObject = require('../internals/is-object');\n\nmodule.exports = function (it) {\n if (!isObject(it) && it !== null) {\n throw TypeError(\"Can't set \" + String(it) + ' as a prototype');\n } return it;\n};\n","'use strict';\nvar $ = require('../internals/export');\nvar createIteratorConstructor = require('../internals/create-iterator-constructor');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar setPrototypeOf = require('../internals/object-set-prototype-of');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefine = require('../internals/redefine');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar IS_PURE = require('../internals/is-pure');\nvar Iterators = require('../internals/iterators');\nvar IteratorsCore = require('../internals/iterators-core');\n\nvar IteratorPrototype = IteratorsCore.IteratorPrototype;\nvar BUGGY_SAFARI_ITERATORS = IteratorsCore.BUGGY_SAFARI_ITERATORS;\nvar ITERATOR = wellKnownSymbol('iterator');\nvar KEYS = 'keys';\nvar VALUES = 'values';\nvar ENTRIES = 'entries';\n\nvar returnThis = function () { return this; };\n\nmodule.exports = function (Iterable, NAME, IteratorConstructor, next, DEFAULT, IS_SET, FORCED) {\n createIteratorConstructor(IteratorConstructor, NAME, next);\n\n var getIterationMethod = function (KIND) {\n if (KIND === DEFAULT && defaultIterator) return defaultIterator;\n if (!BUGGY_SAFARI_ITERATORS && KIND in IterablePrototype) return IterablePrototype[KIND];\n switch (KIND) {\n case KEYS: return function keys() { return new IteratorConstructor(this, KIND); };\n case VALUES: return function values() { return new IteratorConstructor(this, KIND); };\n case ENTRIES: return function entries() { return new IteratorConstructor(this, KIND); };\n } return function () { return new IteratorConstructor(this); };\n };\n\n var TO_STRING_TAG = NAME + ' Iterator';\n var INCORRECT_VALUES_NAME = false;\n var IterablePrototype = Iterable.prototype;\n var nativeIterator = IterablePrototype[ITERATOR]\n || IterablePrototype['@@iterator']\n || DEFAULT && IterablePrototype[DEFAULT];\n var defaultIterator = !BUGGY_SAFARI_ITERATORS && nativeIterator || getIterationMethod(DEFAULT);\n var anyNativeIterator = NAME == 'Array' ? IterablePrototype.entries || nativeIterator : nativeIterator;\n var CurrentIteratorPrototype, methods, KEY;\n\n // fix native\n if (anyNativeIterator) {\n CurrentIteratorPrototype = getPrototypeOf(anyNativeIterator.call(new Iterable()));\n if (IteratorPrototype !== Object.prototype && CurrentIteratorPrototype.next) {\n if (!IS_PURE && getPrototypeOf(CurrentIteratorPrototype) !== IteratorPrototype) {\n if (setPrototypeOf) {\n setPrototypeOf(CurrentIteratorPrototype, IteratorPrototype);\n } else if (typeof CurrentIteratorPrototype[ITERATOR] != 'function') {\n createNonEnumerableProperty(CurrentIteratorPrototype, ITERATOR, returnThis);\n }\n }\n // Set @@toStringTag to native iterators\n setToStringTag(CurrentIteratorPrototype, TO_STRING_TAG, true, true);\n if (IS_PURE) Iterators[TO_STRING_TAG] = returnThis;\n }\n }\n\n // fix Array#{values, @@iterator}.name in V8 / FF\n if (DEFAULT == VALUES && nativeIterator && nativeIterator.name !== VALUES) {\n INCORRECT_VALUES_NAME = true;\n defaultIterator = function values() { return nativeIterator.call(this); };\n }\n\n // define iterator\n if ((!IS_PURE || FORCED) && IterablePrototype[ITERATOR] !== defaultIterator) {\n createNonEnumerableProperty(IterablePrototype, ITERATOR, defaultIterator);\n }\n Iterators[NAME] = defaultIterator;\n\n // export additional methods\n if (DEFAULT) {\n methods = {\n values: getIterationMethod(VALUES),\n keys: IS_SET ? defaultIterator : getIterationMethod(KEYS),\n entries: getIterationMethod(ENTRIES)\n };\n if (FORCED) for (KEY in methods) {\n if (BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME || !(KEY in IterablePrototype)) {\n redefine(IterablePrototype, KEY, methods[KEY]);\n }\n } else $({ target: NAME, proto: true, forced: BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME }, methods);\n }\n\n return methods;\n};\n","'use strict';\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar addToUnscopables = require('../internals/add-to-unscopables');\nvar Iterators = require('../internals/iterators');\nvar InternalStateModule = require('../internals/internal-state');\nvar defineIterator = require('../internals/define-iterator');\n\nvar ARRAY_ITERATOR = 'Array Iterator';\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(ARRAY_ITERATOR);\n\n// `Array.prototype.entries` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.entries\n// `Array.prototype.keys` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.keys\n// `Array.prototype.values` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.values\n// `Array.prototype[@@iterator]` method\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@iterator\n// `CreateArrayIterator` internal method\n// https://tc39.github.io/ecma262/#sec-createarrayiterator\nmodule.exports = defineIterator(Array, 'Array', function (iterated, kind) {\n setInternalState(this, {\n type: ARRAY_ITERATOR,\n target: toIndexedObject(iterated), // target\n index: 0, // next index\n kind: kind // kind\n });\n// `%ArrayIteratorPrototype%.next` method\n// https://tc39.github.io/ecma262/#sec-%arrayiteratorprototype%.next\n}, function () {\n var state = getInternalState(this);\n var target = state.target;\n var kind = state.kind;\n var index = state.index++;\n if (!target || index >= target.length) {\n state.target = undefined;\n return { value: undefined, done: true };\n }\n if (kind == 'keys') return { value: index, done: false };\n if (kind == 'values') return { value: target[index], done: false };\n return { value: [index, target[index]], done: false };\n}, 'values');\n\n// argumentsList[@@iterator] is %ArrayProto_values%\n// https://tc39.github.io/ecma262/#sec-createunmappedargumentsobject\n// https://tc39.github.io/ecma262/#sec-createmappedargumentsobject\nIterators.Arguments = Iterators.Array;\n\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\naddToUnscopables('keys');\naddToUnscopables('values');\naddToUnscopables('entries');\n","'use strict';\nvar $ = require('../internals/export');\nvar isArray = require('../internals/is-array');\n\nvar nativeReverse = [].reverse;\nvar test = [1, 2];\n\n// `Array.prototype.reverse` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.reverse\n// fix for Safari 12.0 bug\n// https://bugs.webkit.org/show_bug.cgi?id=188794\n$({ target: 'Array', proto: true, forced: String(test) === String(test.reverse()) }, {\n reverse: function reverse() {\n // eslint-disable-next-line no-self-assign\n if (isArray(this)) this.length = this.length;\n return nativeReverse.call(this);\n }\n});\n","var redefine = require('../internals/redefine');\n\nvar DatePrototype = Date.prototype;\nvar INVALID_DATE = 'Invalid Date';\nvar TO_STRING = 'toString';\nvar nativeDateToString = DatePrototype[TO_STRING];\nvar getTime = DatePrototype.getTime;\n\n// `Date.prototype.toString` method\n// https://tc39.github.io/ecma262/#sec-date.prototype.tostring\nif (new Date(NaN) + '' != INVALID_DATE) {\n redefine(DatePrototype, TO_STRING, function toString() {\n var value = getTime.call(this);\n // eslint-disable-next-line no-self-compare\n return value === value ? nativeDateToString.call(this) : INVALID_DATE;\n });\n}\n","var global = require('../internals/global');\nvar setToStringTag = require('../internals/set-to-string-tag');\n\n// JSON[@@toStringTag] property\n// https://tc39.github.io/ecma262/#sec-json-@@tostringtag\nsetToStringTag(global.JSON, 'JSON', true);\n","var setToStringTag = require('../internals/set-to-string-tag');\n\n// Math[@@toStringTag] property\n// https://tc39.github.io/ecma262/#sec-math-@@tostringtag\nsetToStringTag(Math, 'Math', true);\n","var $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar create = require('../internals/object-create');\n\n// `Object.create` method\n// https://tc39.github.io/ecma262/#sec-object.create\n$({ target: 'Object', stat: true, sham: !DESCRIPTORS }, {\n create: create\n});\n","var $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar objectDefinePropertyModile = require('../internals/object-define-property');\n\n// `Object.defineProperty` method\n// https://tc39.github.io/ecma262/#sec-object.defineproperty\n$({ target: 'Object', stat: true, forced: !DESCRIPTORS, sham: !DESCRIPTORS }, {\n defineProperty: objectDefinePropertyModile.f\n});\n","var $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar toObject = require('../internals/to-object');\nvar nativeGetPrototypeOf = require('../internals/object-get-prototype-of');\nvar CORRECT_PROTOTYPE_GETTER = require('../internals/correct-prototype-getter');\n\nvar FAILS_ON_PRIMITIVES = fails(function () { nativeGetPrototypeOf(1); });\n\n// `Object.getPrototypeOf` method\n// https://tc39.github.io/ecma262/#sec-object.getprototypeof\n$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !CORRECT_PROTOTYPE_GETTER }, {\n getPrototypeOf: function getPrototypeOf(it) {\n return nativeGetPrototypeOf(toObject(it));\n }\n});\n\n","var $ = require('../internals/export');\nvar setPrototypeOf = require('../internals/object-set-prototype-of');\n\n// `Object.setPrototypeOf` method\n// https://tc39.github.io/ecma262/#sec-object.setprototypeof\n$({ target: 'Object', stat: true }, {\n setPrototypeOf: setPrototypeOf\n});\n","'use strict';\nvar anObject = require('../internals/an-object');\n\n// `RegExp.prototype.flags` getter implementation\n// https://tc39.github.io/ecma262/#sec-get-regexp.prototype.flags\nmodule.exports = function () {\n var that = anObject(this);\n var result = '';\n if (that.global) result += 'g';\n if (that.ignoreCase) result += 'i';\n if (that.multiline) result += 'm';\n if (that.dotAll) result += 's';\n if (that.unicode) result += 'u';\n if (that.sticky) result += 'y';\n return result;\n};\n","'use strict';\nvar redefine = require('../internals/redefine');\nvar anObject = require('../internals/an-object');\nvar fails = require('../internals/fails');\nvar flags = require('../internals/regexp-flags');\n\nvar TO_STRING = 'toString';\nvar RegExpPrototype = RegExp.prototype;\nvar nativeToString = RegExpPrototype[TO_STRING];\n\nvar NOT_GENERIC = fails(function () { return nativeToString.call({ source: 'a', flags: 'b' }) != '/a/b'; });\n// FF44- RegExp#toString has a wrong name\nvar INCORRECT_NAME = nativeToString.name != TO_STRING;\n\n// `RegExp.prototype.toString` method\n// https://tc39.github.io/ecma262/#sec-regexp.prototype.tostring\nif (NOT_GENERIC || INCORRECT_NAME) {\n redefine(RegExp.prototype, TO_STRING, function toString() {\n var R = anObject(this);\n var p = String(R.source);\n var rf = R.flags;\n var f = String(rf === undefined && R instanceof RegExp && !('flags' in RegExpPrototype) ? flags.call(R) : rf);\n return '/' + p + '/' + f;\n }, { unsafe: true });\n}\n","var toInteger = require('../internals/to-integer');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\n\n// `String.prototype.{ codePointAt, at }` methods implementation\nvar createMethod = function (CONVERT_TO_STRING) {\n return function ($this, pos) {\n var S = String(requireObjectCoercible($this));\n var position = toInteger(pos);\n var size = S.length;\n var first, second;\n if (position < 0 || position >= size) return CONVERT_TO_STRING ? '' : undefined;\n first = S.charCodeAt(position);\n return first < 0xD800 || first > 0xDBFF || position + 1 === size\n || (second = S.charCodeAt(position + 1)) < 0xDC00 || second > 0xDFFF\n ? CONVERT_TO_STRING ? S.charAt(position) : first\n : CONVERT_TO_STRING ? S.slice(position, position + 2) : (first - 0xD800 << 10) + (second - 0xDC00) + 0x10000;\n };\n};\n\nmodule.exports = {\n // `String.prototype.codePointAt` method\n // https://tc39.github.io/ecma262/#sec-string.prototype.codepointat\n codeAt: createMethod(false),\n // `String.prototype.at` method\n // https://github.com/mathiasbynens/String.prototype.at\n charAt: createMethod(true)\n};\n","'use strict';\nvar charAt = require('../internals/string-multibyte').charAt;\nvar InternalStateModule = require('../internals/internal-state');\nvar defineIterator = require('../internals/define-iterator');\n\nvar STRING_ITERATOR = 'String Iterator';\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(STRING_ITERATOR);\n\n// `String.prototype[@@iterator]` method\n// https://tc39.github.io/ecma262/#sec-string.prototype-@@iterator\ndefineIterator(String, 'String', function (iterated) {\n setInternalState(this, {\n type: STRING_ITERATOR,\n string: String(iterated),\n index: 0\n });\n// `%StringIteratorPrototype%.next` method\n// https://tc39.github.io/ecma262/#sec-%stringiteratorprototype%.next\n}, function next() {\n var state = getInternalState(this);\n var string = state.string;\n var index = state.index;\n var point;\n if (index >= string.length) return { value: undefined, done: true };\n point = charAt(string, index);\n state.index += point.length;\n return { value: point, done: false };\n});\n","// iterable DOM collections\n// flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods\nmodule.exports = {\n CSSRuleList: 0,\n CSSStyleDeclaration: 0,\n CSSValueList: 0,\n ClientRectList: 0,\n DOMRectList: 0,\n DOMStringList: 0,\n DOMTokenList: 1,\n DataTransferItemList: 0,\n FileList: 0,\n HTMLAllCollection: 0,\n HTMLCollection: 0,\n HTMLFormElement: 0,\n HTMLSelectElement: 0,\n MediaList: 0,\n MimeTypeArray: 0,\n NamedNodeMap: 0,\n NodeList: 1,\n PaintRequestList: 0,\n Plugin: 0,\n PluginArray: 0,\n SVGLengthList: 0,\n SVGNumberList: 0,\n SVGPathSegList: 0,\n SVGPointList: 0,\n SVGStringList: 0,\n SVGTransformList: 0,\n SourceBufferList: 0,\n StyleSheetList: 0,\n TextTrackCueList: 0,\n TextTrackList: 0,\n TouchList: 0\n};\n","var global = require('../internals/global');\nvar DOMIterables = require('../internals/dom-iterables');\nvar forEach = require('../internals/array-for-each');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\n\nfor (var COLLECTION_NAME in DOMIterables) {\n var Collection = global[COLLECTION_NAME];\n var CollectionPrototype = Collection && Collection.prototype;\n // some Chrome versions have non-configurable methods on DOMTokenList\n if (CollectionPrototype && CollectionPrototype.forEach !== forEach) try {\n createNonEnumerableProperty(CollectionPrototype, 'forEach', forEach);\n } catch (error) {\n CollectionPrototype.forEach = forEach;\n }\n}\n","var global = require('../internals/global');\nvar DOMIterables = require('../internals/dom-iterables');\nvar ArrayIteratorMethods = require('../modules/es.array.iterator');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\nvar ArrayValues = ArrayIteratorMethods.values;\n\nfor (var COLLECTION_NAME in DOMIterables) {\n var Collection = global[COLLECTION_NAME];\n var CollectionPrototype = Collection && Collection.prototype;\n if (CollectionPrototype) {\n // some Chrome versions have non-configurable methods on DOMTokenList\n if (CollectionPrototype[ITERATOR] !== ArrayValues) try {\n createNonEnumerableProperty(CollectionPrototype, ITERATOR, ArrayValues);\n } catch (error) {\n CollectionPrototype[ITERATOR] = ArrayValues;\n }\n if (!CollectionPrototype[TO_STRING_TAG]) {\n createNonEnumerableProperty(CollectionPrototype, TO_STRING_TAG, COLLECTION_NAME);\n }\n if (DOMIterables[COLLECTION_NAME]) for (var METHOD_NAME in ArrayIteratorMethods) {\n // some Chrome versions have non-configurable methods on DOMTokenList\n if (CollectionPrototype[METHOD_NAME] !== ArrayIteratorMethods[METHOD_NAME]) try {\n createNonEnumerableProperty(CollectionPrototype, METHOD_NAME, ArrayIteratorMethods[METHOD_NAME]);\n } catch (error) {\n CollectionPrototype[METHOD_NAME] = ArrayIteratorMethods[METHOD_NAME];\n }\n }\n }\n}\n","/**\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","/* globals MathJax */\n/**\n * @file ext-mathjax.js\n *\n * @license MIT\n *\n * @copyright 2013 Jo Segaert\n *\n */\n\nconst loadExtensionTranslation = async function (lang) {\n let translationModule;\n try {\n translationModule = await import(`./locale/${lang}.js`);\n } catch (_error) {\n // eslint-disable-next-line no-console\n console.error(`Missing translation (${lang}) - using 'en'`);\n translationModule = await import(`./locale/en.js`);\n }\n return translationModule.default;\n};\n\nexport default {\n name: 'mathjax',\n async init ({$}) {\n const svgEditor = this;\n const strings = await loadExtensionTranslation(svgEditor.curPrefs.lang);\n const svgCanvas = svgEditor.canvas;\n\n // Configuration of the MathJax extention.\n\n // This will be added to the head tag before MathJax is loaded.\n const /* mathjaxConfiguration = ``, */\n // mathjaxSrc = 'http://cdn.mathjax.org/mathjax/latest/MathJax.js',\n // Had been on https://c328740.ssl.cf1.rackcdn.com/mathjax/latest/MathJax.js?config=TeX-AMS-MML_SVG.js\n // Obtained Text-AMS-MML_SVG.js from https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.3/config/TeX-AMS-MML_SVG.js\n {uiStrings} = svgEditor;\n let\n math,\n locationX,\n locationY,\n mathjaxLoaded = false;\n\n // TODO: Implement language support. Move these uiStrings to the locale files and\n // the code to the langReady callback. Also i18nize alert and HTML below\n $.extend(uiStrings, {\n mathjax: {\n embed_svg: 'Save as mathematics',\n embed_mathml: 'Save as figure',\n svg_save_warning: 'The math will be transformed into a figure is ' +\n 'manipulatable like everything else. You will not be able to ' +\n 'manipulate the TeX-code anymore.',\n mathml_save_warning: 'Advised. The math will be saved as a figure.',\n title: 'Mathematics code editor'\n }\n });\n\n /**\n *\n * @returns {void}\n */\n function saveMath () {\n const code = $('#mathjax_code_textarea').val();\n // displaystyle to force MathJax NOT to use the inline style. Because it is\n // less fancy!\n MathJax.Hub.queue.Push(['Text', math, '\\\\displaystyle{' + code + '}']);\n\n /*\n * The MathJax library doesn't want to bloat your webpage so it creates\n * every symbol (glymph) you need only once. These are saved in a `` on\n * the top of your html document, just under the body tag. Each glymph has\n * its unique id and is saved as a `` in the `` tag of the ``\n *\n * Then when the symbols are needed in the rest of your html document they\n * are refferd to by a `` tag.\n * Because of bug 1076 we can't just grab the defs tag on the top and add it\n * to your formula's `` and copy the lot. So we have to replace each\n * `` tag by its ``.\n */\n MathJax.Hub.queue.Push(\n function () {\n const mathjaxMath = $('.MathJax_SVG');\n const svg = $(mathjaxMath.html());\n svg.find('use').each(function () {\n // TODO: find a less pragmatic and more elegant solution to this.\n const id = $(this).attr('href')\n ? $(this).attr('href').slice(1) // Works in Chrome.\n : $(this).attr('xlink:href').slice(1); // Works in Firefox.\n const glymph = $('#' + id).clone().removeAttr('id');\n const x = $(this).attr('x');\n const y = $(this).attr('y');\n const transform = $(this).attr('transform');\n if (transform && (x || y)) {\n glymph.attr('transform', transform + ' translate(' + x + ',' + y + ')');\n } else if (transform) {\n glymph.attr('transform', transform);\n } else if (x || y) {\n glymph.attr('transform', 'translate(' + x + ',' + y + ')');\n }\n $(this).replaceWith(glymph);\n });\n // Remove the style tag because it interferes with SVG-Edit.\n svg.removeAttr('style');\n svg.attr('xmlns', 'http://www.w3.org/2000/svg');\n svgCanvas.importSvgString($('
').append(svg.clone()).html(), true);\n svgCanvas.ungroupSelectedElement();\n // TODO: To undo the adding of the Formula you now have to undo twice.\n // This should only be once!\n svgCanvas.moveSelectedElements(locationX, locationY, true);\n }\n );\n }\n\n const buttons = [{\n id: 'tool_mathjax',\n type: 'mode',\n icon: 'mathjax.png',\n events: {\n async click () {\n // Set the mode.\n svgCanvas.setMode('mathjax');\n\n // Only load Mathjax when needed, we don't want to strain Svg-Edit any more.\n // From this point on it is very probable that it will be needed, so load it.\n if (mathjaxLoaded === false) {\n $(\n '
' +\n '' +\n '
' +\n '$${}$$' +\n '
' +\n '
' +\n '
' +\n '
' +\n '' +\n '' +\n '
' +\n '
' +\n 'Mathematics Editor' +\n '' +\n '' +\n '
' +\n '
' +\n '
'\n ).insertAfter('#svg_prefs').hide();\n\n // Make the MathEditor draggable.\n $('#mathjax_container').draggable({\n cancel: 'button,fieldset',\n containment: 'window'\n });\n\n // Add functionality and picture to cancel button.\n $('#tool_mathjax_cancel').prepend($.getSvgIcon('cancel', true))\n .on('click touched', function () {\n $('#mathjax').hide();\n });\n\n // Add functionality and picture to the save button.\n $('#tool_mathjax_save').prepend($.getSvgIcon('ok', true))\n .on('click touched', function () {\n saveMath();\n $('#mathjax').hide();\n });\n\n // MathJax preprocessing has to ignore most of the page.\n $('body').addClass('tex2jax_ignore');\n\n try {\n await import('./mathjax/MathJax.min.js'); // ?config=TeX-AMS-MML_SVG.js');\n // When MathJax is loaded get the div where the math will be rendered.\n MathJax.Hub.queue.Push(function () {\n math = MathJax.Hub.getAllJax('#mathjax_creator')[0];\n console.log(math); // eslint-disable-line no-console\n mathjaxLoaded = true;\n console.log('MathJax Loaded'); // eslint-disable-line no-console\n });\n } catch (e) {\n console.log('Failed loading MathJax.'); // eslint-disable-line no-console\n $.alert('Failed loading MathJax. You will not be able to change the mathematics.');\n }\n }\n }\n }\n }];\n\n return {\n name: strings.name,\n svgicons: 'mathjax-icons.xml',\n buttons: strings.buttons.map((button, i) => {\n return Object.assign(buttons[i], button);\n }),\n\n mouseDown () {\n if (svgCanvas.getMode() === 'mathjax') {\n return {started: true};\n }\n return undefined;\n },\n mouseUp (opts) {\n if (svgCanvas.getMode() === 'mathjax') {\n // Get the coordinates from your mouse.\n const zoom = svgCanvas.getZoom();\n // Get the actual coordinate by dividing by the zoom value\n locationX = opts.mouse_x / zoom;\n locationY = opts.mouse_y / zoom;\n\n $('#mathjax').show();\n return {started: false}; // Otherwise the last selected object dissapears.\n }\n return undefined;\n },\n callback () {\n $('