Visible for testing\r\n */\n\nvar MAX_VALUE_MILLIS = 4 * 60 * 60 * 1000; // Four hours, like iOS and Android.\n\n/**\r\n * The percentage of backoff time to randomize by.\r\n * See\r\n * http://go/safe-client-behavior#step-1-determine-the-appropriate-retry-interval-to-handle-spike-traffic\r\n * for context.\r\n *\r\n *
Visible for testing\r\n */\n\nvar RANDOM_FACTOR = 0.5;\n/**\r\n * Based on the backoff method from\r\n * https://github.com/google/closure-library/blob/master/closure/goog/math/exponentialbackoff.js.\r\n * Extracted here so we don't need to pass metadata and a stateful ExponentialBackoff object around.\r\n */\n\nfunction calculateBackoffMillis(backoffCount, intervalMillis, backoffFactor) {\n if (intervalMillis === void 0) {\n intervalMillis = DEFAULT_INTERVAL_MILLIS;\n }\n\n if (backoffFactor === void 0) {\n backoffFactor = DEFAULT_BACKOFF_FACTOR;\n } // Calculates an exponentially increasing value.\n // Deviation: calculates value from count and a constant interval, so we only need to save value\n // and count to restore state.\n\n\n var currBaseValue = intervalMillis * Math.pow(backoffFactor, backoffCount); // A random \"fuzz\" to avoid waves of retries.\n // Deviation: randomFactor is required.\n\n var randomWait = Math.round( // A fraction of the backoff value to add/subtract.\n // Deviation: changes multiplication order to improve readability.\n RANDOM_FACTOR * currBaseValue * ( // A random float (rounded to int by Math.round above) in the range [-1, 1]. Determines\n // if we add or subtract.\n Math.random() - 0.5) * 2); // Limits backoff to max to avoid effectively permanent backoff.\n\n return Math.min(MAX_VALUE_MILLIS, currBaseValue + randomWait);\n}\n/**\r\n * @license\r\n * Copyright 2020 Google LLC\r\n *\r\n * Licensed under the Apache License, Version 2.0 (the \"License\");\r\n * you may not use this file except in compliance with the License.\r\n * You may obtain a copy of the License at\r\n *\r\n * http://www.apache.org/licenses/LICENSE-2.0\r\n *\r\n * Unless required by applicable law or agreed to in writing, software\r\n * distributed under the License is distributed on an \"AS IS\" BASIS,\r\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r\n * See the License for the specific language governing permissions and\r\n * limitations under the License.\r\n */\n\n/**\r\n * Provide English ordinal letters after a number\r\n */\n\n\nfunction ordinal(i) {\n if (!Number.isFinite(i)) {\n return \"\" + i;\n }\n\n return i + indicator(i);\n}\n\nfunction indicator(i) {\n i = Math.abs(i);\n var cent = i % 100;\n\n if (cent >= 10 && cent <= 20) {\n return 'th';\n }\n\n var dec = i % 10;\n\n if (dec === 1) {\n return 'st';\n }\n\n if (dec === 2) {\n return 'nd';\n }\n\n if (dec === 3) {\n return 'rd';\n }\n\n return 'th';\n}\n/**\r\n * @license\r\n * Copyright 2021 Google LLC\r\n *\r\n * Licensed under the Apache License, Version 2.0 (the \"License\");\r\n * you may not use this file except in compliance with the License.\r\n * You may obtain a copy of the License at\r\n *\r\n * http://www.apache.org/licenses/LICENSE-2.0\r\n *\r\n * Unless required by applicable law or agreed to in writing, software\r\n * distributed under the License is distributed on an \"AS IS\" BASIS,\r\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r\n * See the License for the specific language governing permissions and\r\n * limitations under the License.\r\n */\n\n\nfunction getModularInstance(service) {\n if (service && service._delegate) {\n return service._delegate;\n } else {\n return service;\n }\n}\n\nexport { CONSTANTS, Deferred, ErrorFactory, FirebaseError, MAX_VALUE_MILLIS, RANDOM_FACTOR, Sha1, areCookiesEnabled, assert, assertionError, async, base64, base64Decode, base64Encode, base64urlEncodeWithoutPadding, calculateBackoffMillis, contains, createMockUserToken, createSubscribe, decode, deepCopy, deepEqual, deepExtend, errorPrefix, extractQuerystring, getGlobal, getModularInstance, getUA, isAdmin, isBrowser, isBrowserExtension, isElectron, isEmpty, isIE, isIndexedDBAvailable, isMobileCordova, isNode, isNodeSdk, isReactNative, isSafari, isUWP, isValidFormat, isValidTimestamp, issuedAtTime, jsonEval, map, ordinal, querystring, querystringDecode, safeGet, stringLength, stringToByteArray, stringify, validateArgCount, validateCallback, validateContextObject, validateIndexedDBOpenable, validateNamespace };","function _typeof(obj) { \"@babel/helpers - typeof\"; return _typeof = \"function\" == typeof Symbol && \"symbol\" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && \"function\" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }, _typeof(obj); }\n\n// Source: http://jsfiddle.net/vWx8V/\n// http://stackoverflow.com/questions/5603195/full-list-of-javascript-keycodes\n\n/**\n * Conenience method returns corresponding value for given keyName or keyCode.\n *\n * @param {Mixed} keyCode {Number} or keyName {String}\n * @return {Mixed}\n * @api public\n */\nfunction keyCode(searchInput) {\n // Keyboard Events\n if (searchInput && 'object' === _typeof(searchInput)) {\n var hasKeyCode = searchInput.which || searchInput.keyCode || searchInput.charCode;\n if (hasKeyCode) searchInput = hasKeyCode;\n } // Numbers\n\n\n if ('number' === typeof searchInput) return names[searchInput]; // Everything else (cast to string)\n\n var search = String(searchInput); // check codes\n\n var foundNamedKey = codes[search.toLowerCase()];\n if (foundNamedKey) return foundNamedKey; // check aliases\n\n var foundNamedKey = aliases[search.toLowerCase()];\n if (foundNamedKey) return foundNamedKey; // weird character?\n\n if (search.length === 1) return search.charCodeAt(0);\n return undefined;\n}\n/**\n * Compares a keyboard event with a given keyCode or keyName.\n *\n * @param {Event} event Keyboard event that should be tested\n * @param {Mixed} keyCode {Number} or keyName {String}\n * @return {Boolean}\n * @api public\n */\n\n\nkeyCode.isEventKey = function isEventKey(event, nameOrCode) {\n if (event && 'object' === _typeof(event)) {\n var keyCode = event.which || event.keyCode || event.charCode;\n\n if (keyCode === null || keyCode === undefined) {\n return false;\n }\n\n if (typeof nameOrCode === 'string') {\n // check codes\n var foundNamedKey = codes[nameOrCode.toLowerCase()];\n\n if (foundNamedKey) {\n return foundNamedKey === keyCode;\n } // check aliases\n\n\n var foundNamedKey = aliases[nameOrCode.toLowerCase()];\n\n if (foundNamedKey) {\n return foundNamedKey === keyCode;\n }\n } else if (typeof nameOrCode === 'number') {\n return nameOrCode === keyCode;\n }\n\n return false;\n }\n};\n\nexports = module.exports = keyCode;\n/**\n * Get by name\n *\n * exports.code['enter'] // => 13\n */\n\nvar codes = exports.code = exports.codes = {\n 'backspace': 8,\n 'tab': 9,\n 'enter': 13,\n 'shift': 16,\n 'ctrl': 17,\n 'alt': 18,\n 'pause/break': 19,\n 'caps lock': 20,\n 'esc': 27,\n 'space': 32,\n 'page up': 33,\n 'page down': 34,\n 'end': 35,\n 'home': 36,\n 'left': 37,\n 'up': 38,\n 'right': 39,\n 'down': 40,\n 'insert': 45,\n 'delete': 46,\n 'command': 91,\n 'left command': 91,\n 'right command': 93,\n 'numpad *': 106,\n 'numpad +': 107,\n 'numpad -': 109,\n 'numpad .': 110,\n 'numpad /': 111,\n 'num lock': 144,\n 'scroll lock': 145,\n 'my computer': 182,\n 'my calculator': 183,\n ';': 186,\n '=': 187,\n ',': 188,\n '-': 189,\n '.': 190,\n '/': 191,\n '`': 192,\n '[': 219,\n '\\\\': 220,\n ']': 221,\n \"'\": 222\n}; // Helper aliases\n\nvar aliases = exports.aliases = {\n 'windows': 91,\n '⇧': 16,\n '⌥': 18,\n '⌃': 17,\n '⌘': 91,\n 'ctl': 17,\n 'control': 17,\n 'option': 18,\n 'pause': 19,\n 'break': 19,\n 'caps': 20,\n 'return': 13,\n 'escape': 27,\n 'spc': 32,\n 'spacebar': 32,\n 'pgup': 33,\n 'pgdn': 34,\n 'ins': 45,\n 'del': 46,\n 'cmd': 91\n};\n/*!\n * Programatically add the following\n */\n// lower case chars\n\nfor (i = 97; i < 123; i++) {\n codes[String.fromCharCode(i)] = i - 32;\n} // numbers\n\n\nfor (var i = 48; i < 58; i++) {\n codes[i - 48] = i;\n} // function keys\n\n\nfor (i = 1; i < 13; i++) {\n codes['f' + i] = i + 111;\n} // numpad keys\n\n\nfor (i = 0; i < 10; i++) {\n codes['numpad ' + i] = i + 96;\n}\n/**\n * Get by code\n *\n * exports.name[13] // => 'Enter'\n */\n\n\nvar names = exports.names = exports.title = {}; // title for backward compat\n// Create reverse mapping\n\nfor (i in codes) {\n names[codes[i]] = i;\n} // Add aliases\n\n\nfor (var alias in aliases) {\n codes[alias] = aliases[alias];\n}","export {\n firebaseStatusCheck,\n firebaseCreateUserByMail,\n firebaseLoginByGoogle,\n firebaseLoginByMail,\n GoogleLoginAndAppLogin,\n MailLoginAndAppLogin,\n sendMailVerification,\n checkEmail,\n changePassword,\n checkRecaptcha,\n checkPhoneNumber,\n mergeUserProvider,\n csrfTokenObj,\n authorizationObj,\n railsLogin,\n firebaseSignOut,\n firebaseError,\n currentUser,\n sendPasswordResetEmail,\n getAuth,\n authStateChanged,\n getParameterByName,\n}\nimport {\n disp_alert\n} from \"../common/ui\"\n\nimport {\n firebaseInit,\n firebase\n} from \"../firebase/firebase_main\"\n\nrequire('firebaseui');\n\n$(function () {\n firebaseInit();\n});\n\nconst getAuth = async () => {\n await authStateChanged();\n return firebase.auth();\n}\nconst currentUser = async () => {\n await authStateChanged();\n return firebase.auth().currentUser;\n}\n\nconst authStateChanged = () => {\n return new Promise((resolve) => {\n firebase.auth().onAuthStateChanged(() => {\n resolve();\n });\n });\n}\n\nconst firebaseStatusCheck = async () => {\n var status = {\n NOT_LOGIN: {\n value: 'NOT_LOGIN',\n message: 'ログインしてください'\n },\n CONTRACTOR_NOT_AUTH: {\n value: 'CONTRACTOR_NOT_AUTH',\n message: 'メールアドレス・電話番号を認証してください（契約者）'\n },\n CONTRACTOR_SHOULD_AUTH_PHONE_NUMBER: {\n value: 'CONTRACTOR_SHOULD_AUTH_PHONE_NUMBER',\n message: '電話番号を認証してください（契約者）'\n },\n CONTRACTOR_SHOULD_AUTH_EMAIL: {\n value: 'CONTRACTOR_SHOULD_AUTH_EMAIL',\n message: 'メールアドレスを認証してください（契約者）'\n },\n ALL_AUTHENTICATED: {\n value: 'ALL_AUTHENTICATED',\n message: 'すべて認証済みです'\n }\n };\n\n\n var user = await currentUser();\n var isExistPhone = false;\n\n if (!user) {\n return status.NOT_LOGIN;\n }\n\n user.providerData.forEach(function (profile) {\n console.log(\"Sign-in provider: \" + profile.providerId);\n if (profile.providerId == \"phone\") {\n isExistPhone = true;\n }\n });\n\n // 契約者の場合は電話番号とメールアドレス認証済みかチェック\n if (gon.user_info.role == \"contractor_admin\"){\n if (isExistPhone && user.emailVerified) {\n return status.ALL_AUTHENTICATED;\n } else if (isExistPhone) {\n return status.CONTRACTOR_SHOULD_AUTH_EMAIL;\n } else if (user.emailVerified) {\n return status.CONTRACTOR_SHOULD_AUTH_PHONE_NUMBER;\n } else {\n return status.CONTRACTOR_NOT_AUTH;\n }\n }\n\n}\n\nconst GoogleLoginAndAppLogin = async () => {\n await firebase.auth().setPersistence(firebase.auth.Auth.Persistence.LOCAL)\n var userCredential = await firebaseLoginByGoogle();\n var idToken = await userCredential.user.getIdToken(true);\n railsLogin(idToken);\n}\n\nconst MailLoginAndAppLogin = async () => {\n await firebase.auth().setPersistence(firebase.auth.Auth.Persistence.LOCAL)\n var userCredential = await firebaseLoginByMail();\n var idToken = await userCredential.user.getIdToken(true);\n railsLogin(idToken);\n}\n\nconst firebaseLoginByGoogle = async () => {\n var provider = new firebase.auth.GoogleAuthProvider();\n return firebase.auth().signInWithPopup(provider)\n}\n\nconst firebaseLoginByMail = async (email, password) => {\n\n if (!password) {\n password = $(\".password\").val();\n }\n\n if (!email) {\n email = $(\".email\").val();\n }\n\n if (!password || !email) {\n throw {\n \"code\": \"app-00\",\n \"message\": \"メールアドレスまたはパスワードが入力されていません。\"\n };\n }\n\n return firebase.auth().signInWithEmailAndPassword(email, password);\n}\nconst passwordCheck = (password, password_confirm) => {\n\n if (!password || password != password_confirm) {\n throw {\n \"code\": \"app-01\",\n \"message\": \"パスワードとパスワード（確認）が一致しません。\"\n };\n }\n}\n\nconst firebaseCreateUserByMail = async (password, password_confirm, email) => {\n\n passwordCheck(password, password_confirm);\n\n return firebase.auth().createUserWithEmailAndPassword(email, password).then(function () {\n $(\"#mail-input-area\").hide();\n $(\"#signin-methods\").hide();\n }).catch((error) => {\n if (error.code == \"auth/email-already-in-use\") {\n firebaseLoginByMail(email, password)\n } else {\n throw error\n }\n });\n}\n\nconst sendMailVerification = async (user) => {\n\n if (!user) {\n user = firebase.auth().currentUser;\n }\n\n return user.sendEmailVerification()\n}\n\nconst checkRecaptcha = async (phoneNumber) => {\n var appVerifier = new firebase.auth.RecaptchaVerifier(\n 'recaptcha-container', {\n 'size': 'normal',\n 'callback': function (response) {\n onSolvedRecaptcha();\n },\n 'expired-callback': function () {}\n });\n var confirmationResult = await firebase.auth().signInWithPhoneNumber(phoneNumber, appVerifier)\n\n return confirmationResult\n}\n\nconst checkPhoneNumber = (verificationCode, confirmationResult) => {\n\n if (!verificationCode) {\n throw {\n \"code\": \"app-07\",\n \"message\": \"確認コードを入力してください。\"\n };\n }\n return firebase.auth.PhoneAuthProvider.credential(confirmationResult.verificationId, verificationCode);\n\n}\n\nconst mergeUserProvider = async (prevUser, credential) => {\n return prevUser.linkWithCredential(credential)\n}\n\nconst checkEmail = async () => {\n\n var mode = getParameterByName('mode');\n var actionCode = getParameterByName('oobCode');\n var continueUrl = getParameterByName('continueUrl');\n\n switch (mode) {\n case 'resetPassword':\n return await handleResetPassword(actionCode, continueUrl);\n case 'recoverEmail':\n return await handleRecoverEmail(actionCode);\n case 'verifyEmail':\n return await handleVerifyEmail(actionCode);\n default:\n return false;\n }\n}\n\nconst sendPasswordResetEmail = (email) => {\n return firebase.auth().sendPasswordResetEmail(email)\n}\n\nconst handleResetPassword = async (actionCode) => {\n //https://firebase.google.com/docs/auth/custom-email-handler\n await firebase.auth().verifyPasswordResetCode(actionCode)\n\n $(\".form-signin\").show();\n $(\".password_form\").show();\n $(\".login_link\").show();\n $(\".submit_password\").on('click', async function () {\n try {\n var password = $(\".password_form .password\").val();\n var password_confirm = $(\".password_form .password_confirm\").val();\n\n passwordCheck(password, password_confirm);\n await firebase.auth().confirmPasswordReset(actionCode, password);\n $(\"#message\").text(\"パスワード変更が完了しました。\");\n $(\".password_form\").hide();\n } catch (error) {\n firebaseError(error);\n }\n })\n}\n\nconst handleRecoverEmail = async (actionCode) => {\n //https://firebase.google.com/docs/auth/custom-email-handler\n var info = await firebase.auth().checkActionCode(actionCode);\n var restoredEmail = info['data']['email'];\n console.log(\"restore: \" + \"restoredEmail\");\n await firebase.auth().applyActionCode(actionCode);\n $(\"#message\").text(\"メールアドレスの復元が完了しました。\" + \"メールアドレス：\" + restoredEmail);\n}\n\nconst handleVerifyEmail = async (actionCode) => {\n await firebase.auth().applyActionCode(actionCode);\n $(\"#message\").text(\"メールアドレスの確認が完了しました。\");\n console.log(\"メールチェック完了\");\n return true;\n}\n\nconst csrfTokenObj = () => {\n return {\n \"X-CSRF-TOKEN\": $('meta[name=\"csrf-token\"]').attr('content')\n };\n}\n\nconst authorizationObj = (idToken) => {\n return {\n \"Authorization\": `Bearer ${idToken}`\n };\n}\n\nconst changePassword = async (password, password_confirm) => {\n passwordCheck(password, password_confirm);\n var user = firebase.auth().currentUser;\n return user.updatePassword(password);\n}\n\nconst firebaseSignOut = () => {\n firebase.auth().signOut().then(() => {\n console.log(\"firebaseログアウトしました\");\n railsLogout();\n })\n .catch((error) => {\n console.log(`ログアウト時にエラーが発生しました (${error})`);\n });\n}\n\nconst railsLogin = async (idToken) => {\n if (!idToken) {\n var user = firebase.auth().currentUser;\n idToken = await user.getIdToken(true);\n }\n // const url = isNewUser ? \"/users/sign_up/social_sign_in\" : \"/users/sign_in\";\n const url = gon.user_info.url;\n const headers = Object.assign(csrfTokenObj(), authorizationObj(idToken));\n $.ajax({\n url: url,\n type: \"POST\",\n headers: headers\n })\n .done((data) => {\n console.log(\"APP login!\")\n $(document).trigger(\"appLogin\");\n if (\"is_redirect\" in gon.user_info && !gon.user_info.is_redirect) {\n return;\n }\n if ('result' in data && 'url' in data.result) {\n window.location.href = data.result.url;\n } else {\n window.location.href = '/';\n }\n\n })\n .fail((data) => {\n console.log(\"APP login failed!\");\n var message = \"ログインに失敗しました\";\n var detail_code = \"\";\n if ('responseJSON' in data && \"result\" in data.responseJSON && \"message\" in data.responseJSON.result) {\n message = data.responseJSON.result.message;\n detail_code = data.responseJSON.result.code;\n }\n if ('responseJSON' in data && \"token\" in data.responseJSON) {\n $('meta[name=\"csrf-token\"]').attr('content', data.responseJSON.token);\n }\n if (data.status == \"422\") {\n var fail_message = \"ログインに失敗しました。お手数ですがもう一度ログインしてください\"\n window.location.href = '/users/sign_in/?message=' + fail_message;\n }\n firebaseError({\n message: message,\n code: data.status\n });\n });\n}\n\nconst railsLogout = () => {\n const url = \"/users/sing_out\"\n $.ajax({\n url: url,\n type: \"POST\",\n data: {\n \"_method\": \"DELETE\"\n }\n })\n .done((data) => {\n console.log(\"APP logout!\")\n window.location.href = '/users/sign_in';\n })\n .fail((data) => {\n console.log(\"APP logout failed!\");\n var message = \"ログアウトに失敗しました\"\n if ('responseJSON' in data && \"result\" in data.responseJSON && \"message\" in data.responseJSON.result) {\n message = data.responseJSON.result.message;\n }\n firebaseError({\n message: message,\n code: data.status\n });\n });\n}\n\nconst firebaseError = (error) => {\n var error_message = \"エラーが発生しました。\";\n\n if (error.code == \"auth/email-already-in-use\") {\n error_message = \"ユーザーを二重で登録することはできません。\"\n\n } else if (error.code == \"auth/popup-closed-by-user\") {\n error_message = \"ユーザーによりポップアップが閉じられました。\"\n console.log(\"エラーが発生しました。コード：\" + error.code + \" ／ メッセージ：\" + error_message);\n return;\n\n } else if (error.code == \"auth/user-not-found\") {\n error_message = \"ユーザーが存在しません。入力内容をご確認ください。\"\n\n } else if (error.code == \"auth/wrong-password\") {\n error_message = \"パスワードが違います。\"\n\n } else if (error.code == \"auth/invalid-action-code\") {\n error_message = \"有効期限切れのURLです。お手数ですが再度認証を行ってください。\"\n\n } else if (error.code == \"auth/weak-password\") {\n error_message = \"パスワードは6文字以上入力してください。\"\n\n } else if (error.code == \"auth/too-many-requests\") {\n error_message = \"時間をあけて再度やりなおしてください。\"\n\n } else if (error.code == \"auth/invalid-verification-code\") {\n error_message = \"確認コードが違います。\"\n\n } else if (error.code == \"auth/code-expired\") {\n error_message = \"確認コードが有効期限切れです。もう一度やり直してください。\"\n\n } else {\n error_message = \"エラーが発生しました。メッセージ：\" + error.message\n\n }\n\n disp_alert(error_message + \" コード：\" + error.code);\n console.log(\"エラーが発生しました。コード：\" + error.code + \" ／ メッセージ：\" + error.message);\n}\n\nconst getParameterByName = (name) => {\n var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search);\n return match && decodeURIComponent(match[1].replace(/\\+/g, ' '));\n}","function _typeof(obj) { \"@babel/helpers - typeof\"; return _typeof = \"function\" == typeof Symbol && \"symbol\" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && \"function\" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }, _typeof(obj); }\n\n/*!\n * jQuery JavaScript Library v3.6.0\n * https://jquery.com/\n *\n * Includes Sizzle.js\n * https://sizzlejs.com/\n *\n * Copyright OpenJS Foundation and other contributors\n * Released under the MIT license\n * https://jquery.org/license\n *\n * Date: 2021-03-02T17:08Z\n */\n(function (global, factory) {\n \"use strict\";\n\n if ((typeof module === \"undefined\" ? \"undefined\" : _typeof(module)) === \"object\" && _typeof(module.exports) === \"object\") {\n // For CommonJS and CommonJS-like environments where a proper `window`\n // is present, execute the factory and get jQuery.\n // For environments that do not have a `window` with a `document`\n // (such as Node.js), expose a factory as module.exports.\n // This accentuates the need for the creation of a real `window`.\n // e.g. var jQuery = require(\"jquery\")(window);\n // See ticket #14549 for more info.\n module.exports = global.document ? factory(global, true) : function (w) {\n if (!w.document) {\n throw new Error(\"jQuery requires a window with a document\");\n }\n\n return factory(w);\n };\n } else {\n factory(global);\n } // Pass this if window is not defined yet\n\n})(typeof window !== \"undefined\" ? window : this, function (window, noGlobal) {\n // Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1\n // throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode\n // arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common\n // enough that all such attempts are guarded in a try block.\n \"use strict\";\n\n var arr = [];\n var getProto = Object.getPrototypeOf;\n var _slice = arr.slice;\n var flat = arr.flat ? function (array) {\n return arr.flat.call(array);\n } : function (array) {\n return arr.concat.apply([], array);\n };\n var push = arr.push;\n var indexOf = arr.indexOf;\n var class2type = {};\n var toString = class2type.toString;\n var hasOwn = class2type.hasOwnProperty;\n var fnToString = hasOwn.toString;\n var ObjectFunctionString = fnToString.call(Object);\n var support = {};\n\n var isFunction = function isFunction(obj) {\n // Support: Chrome <=57, Firefox <=52\n // In some browsers, typeof returns \"function\" for HTML