Best JavaScript code snippet using playwright-internal
javascript.js
Source:javascript.js  
1"use strict";2Object.defineProperty(exports, "__esModule", {3  value: true4});5exports.evaluate = evaluate;6exports.evaluateExpression = evaluateExpression;7exports.evaluateExpressionAndWaitForSignals = evaluateExpressionAndWaitForSignals;8exports.parseUnserializableValue = parseUnserializableValue;9exports.normalizeEvaluationExpression = normalizeEvaluationExpression;10exports.isJavaScriptErrorInEvaluate = isJavaScriptErrorInEvaluate;11exports.JavaScriptErrorInEvaluate = exports.JSHandle = exports.ExecutionContext = void 0;12var utilityScriptSource = _interopRequireWildcard(require("../generated/utilityScriptSource"));13var _utilityScriptSerializers = require("./common/utilityScriptSerializers");14var _instrumentation = require("./instrumentation");15function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }16function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }17/**18 * Copyright (c) Microsoft Corporation.19 *20 * Licensed under the Apache License, Version 2.0 (the "License");21 * you may not use this file except in compliance with the License.22 * You may obtain a copy of the License at23 *24 * http://www.apache.org/licenses/LICENSE-2.025 *26 * Unless required by applicable law or agreed to in writing, software27 * distributed under the License is distributed on an "AS IS" BASIS,28 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.29 * See the License for the specific language governing permissions and30 * limitations under the License.31 */32class ExecutionContext extends _instrumentation.SdkObject {33  constructor(parent, delegate) {34    super(parent, 'execution-context');35    this._delegate = void 0;36    this._utilityScriptPromise = void 0;37    this._delegate = delegate;38  }39  async waitForSignalsCreatedBy(action) {40    return action();41  }42  adoptIfNeeded(handle) {43    return null;44  }45  utilityScript() {46    if (!this._utilityScriptPromise) {47      const source = `48      (() => {49        ${utilityScriptSource.source}50        return new pwExport();51      })();`;52      this._utilityScriptPromise = this._delegate.rawEvaluateHandle(source).then(objectId => new JSHandle(this, 'object', undefined, objectId));53    }54    return this._utilityScriptPromise;55  }56  createHandle(remoteObject) {57    return this._delegate.createHandle(this, remoteObject);58  }59  async rawEvaluateJSON(expression) {60    return await this._delegate.rawEvaluateJSON(expression);61  }62  async doSlowMo() {// overridden in FrameExecutionContext63  }64}65exports.ExecutionContext = ExecutionContext;66class JSHandle extends _instrumentation.SdkObject {67  constructor(context, type, preview, objectId, value) {68    super(context, 'handle');69    this._context = void 0;70    this._disposed = false;71    this._objectId = void 0;72    this._value = void 0;73    this._objectType = void 0;74    this._preview = void 0;75    this._previewCallback = void 0;76    this._context = context;77    this._objectId = objectId;78    this._value = value;79    this._objectType = type;80    this._preview = this._objectId ? preview || `JSHandle@${this._objectType}` : String(value);81  }82  callFunctionNoReply(func, arg) {83    this._context._delegate.rawCallFunctionNoReply(func, this, arg);84  }85  async evaluate(pageFunction, arg) {86    return evaluate(this._context, true87    /* returnByValue */88    , pageFunction, this, arg);89  }90  async evaluateHandle(pageFunction, arg) {91    return evaluate(this._context, false92    /* returnByValue */93    , pageFunction, this, arg);94  }95  async evaluateExpressionAndWaitForSignals(expression, isFunction, returnByValue, arg) {96    const value = await evaluateExpressionAndWaitForSignals(this._context, returnByValue, expression, isFunction, this, arg);97    await this._context.doSlowMo();98    return value;99  }100  async getProperty(propertyName) {101    const objectHandle = await this.evaluateHandle((object, propertyName) => {102      const result = {103        __proto__: null104      };105      result[propertyName] = object[propertyName];106      return result;107    }, propertyName);108    const properties = await objectHandle.getProperties();109    const result = properties.get(propertyName);110    objectHandle.dispose();111    return result;112  }113  async getProperties() {114    if (!this._objectId) return new Map();115    return this._context._delegate.getProperties(this._context, this._objectId);116  }117  rawValue() {118    return this._value;119  }120  async jsonValue() {121    if (!this._objectId) return this._value;122    const utilityScript = await this._context.utilityScript();123    const script = `(utilityScript, ...args) => utilityScript.jsonValue(...args)`;124    return this._context._delegate.evaluateWithArguments(script, true, utilityScript, [true], [this._objectId]);125  }126  asElement() {127    return null;128  }129  dispose() {130    if (this._disposed) return;131    this._disposed = true;132    if (this._objectId) this._context._delegate.releaseHandle(this._objectId).catch(e => {});133  }134  toString() {135    return this._preview;136  }137  _setPreviewCallback(callback) {138    this._previewCallback = callback;139  }140  preview() {141    return this._preview;142  }143  _setPreview(preview) {144    this._preview = preview;145    if (this._previewCallback) this._previewCallback(preview);146  }147}148exports.JSHandle = JSHandle;149async function evaluate(context, returnByValue, pageFunction, ...args) {150  return evaluateExpression(context, returnByValue, String(pageFunction), typeof pageFunction === 'function', ...args);151}152async function evaluateExpression(context, returnByValue, expression, isFunction, ...args) {153  const utilityScript = await context.utilityScript();154  expression = normalizeEvaluationExpression(expression, isFunction);155  const handles = [];156  const toDispose = [];157  const pushHandle = handle => {158    handles.push(handle);159    return handles.length - 1;160  };161  args = args.map(arg => (0, _utilityScriptSerializers.serializeAsCallArgument)(arg, handle => {162    if (handle instanceof JSHandle) {163      if (!handle._objectId) return {164        fallThrough: handle._value165      };166      if (handle._disposed) throw new Error('JSHandle is disposed!');167      const adopted = context.adoptIfNeeded(handle);168      if (adopted === null) return {169        h: pushHandle(Promise.resolve(handle))170      };171      toDispose.push(adopted);172      return {173        h: pushHandle(adopted)174      };175    }176    return {177      fallThrough: handle178    };179  }));180  const utilityScriptObjectIds = [];181  for (const handle of await Promise.all(handles)) {182    if (handle._context !== context) throw new Error('JSHandles can be evaluated only in the context they were created!');183    utilityScriptObjectIds.push(handle._objectId);184  } // See UtilityScript for arguments.185  const utilityScriptValues = [isFunction, returnByValue, expression, args.length, ...args];186  const script = `(utilityScript, ...args) => utilityScript.evaluate(...args)`;187  try {188    return await context._delegate.evaluateWithArguments(script, returnByValue, utilityScript, utilityScriptValues, utilityScriptObjectIds);189  } finally {190    toDispose.map(handlePromise => handlePromise.then(handle => handle.dispose()));191  }192}193async function evaluateExpressionAndWaitForSignals(context, returnByValue, expression, isFunction, ...args) {194  return await context.waitForSignalsCreatedBy(() => evaluateExpression(context, returnByValue, expression, isFunction, ...args));195}196function parseUnserializableValue(unserializableValue) {197  if (unserializableValue === 'NaN') return NaN;198  if (unserializableValue === 'Infinity') return Infinity;199  if (unserializableValue === '-Infinity') return -Infinity;200  if (unserializableValue === '-0') return -0;201}202function normalizeEvaluationExpression(expression, isFunction) {203  expression = expression.trim();204  if (isFunction) {205    try {206      new Function('(' + expression + ')');207    } catch (e1) {208      // This means we might have a function shorthand. Try another209      // time prefixing 'function '.210      if (expression.startsWith('async ')) expression = 'async function ' + expression.substring('async '.length);else expression = 'function ' + expression;211      try {212        new Function('(' + expression + ')');213      } catch (e2) {214        // We tried hard to serialize, but there's a weird beast here.215        throw new Error('Passed function is not well-serializable!');216      }217    }218  }219  if (/^(async)?\s*function(\s|\()/.test(expression)) expression = '(' + expression + ')';220  return expression;221} // Error inside the expression evaluation as opposed to a protocol error.222class JavaScriptErrorInEvaluate extends Error {}223exports.JavaScriptErrorInEvaluate = JavaScriptErrorInEvaluate;224function isJavaScriptErrorInEvaluate(error) {225  return error instanceof JavaScriptErrorInEvaluate;...utilityScriptSource.js
Source:utilityScriptSource.js  
1var pwExport2;(() => {3  'use strict'4  var t = {5      645: (t, e, r) => {6        function n(t, e, o) {7          const i = e(t)8          if (!('fallThrough' in i)) return i9          if (((t = i.fallThrough), o.has(t)))10            throw new Error('Argument is a circular structure')11          if ('symbol' == typeof t) return { v: 'undefined' }12          if (Object.is(t, void 0)) return { v: 'undefined' }13          if (Object.is(t, null)) return { v: 'null' }14          if (Object.is(t, NaN)) return { v: 'NaN' }15          if (Object.is(t, 1 / 0)) return { v: 'Infinity' }16          if (Object.is(t, -1 / 0)) return { v: '-Infinity' }17          if (Object.is(t, -0)) return { v: '-0' }18          if ('boolean' == typeof t) return t19          if ('number' == typeof t) return t20          if ('string' == typeof t) return t21          if (22            (u = t) instanceof Error ||23            (u && u.__proto__ && 'Error' === u.__proto__.name)24          ) {25            const e = t26            return 'captureStackTrace' in r.g.Error27              ? e.stack || ''28              : `${e.name}: ${e.message}\n${e.stack}`29          }30          var u31          if (32            (function (t) {33              return (34                t instanceof Date ||35                '[object Date]' === Object.prototype.toString.call(t)36              )37            })(t)38          )39            return { d: t.toJSON() }40          if (41            (function (t) {42              return (43                t instanceof RegExp ||44                '[object RegExp]' === Object.prototype.toString.call(t)45              )46            })(t)47          )48            return { r: { p: t.source, f: t.flags } }49          if (Array.isArray(t)) {50            const r = []51            o.add(t)52            for (let i = 0; i < t.length; ++i) r.push(n(t[i], e, o))53            return o.delete(t), { a: r }54          }55          if ('object' == typeof t) {56            const r = []57            o.add(t)58            for (const i of Object.keys(t)) {59              let u60              try {61                u = t[i]62              } catch (t) {63                continue64              }65              'toJSON' === i && 'function' == typeof u66                ? r.push({ k: i, v: { o: [] } })67                : r.push({ k: i, v: n(u, e, o) })68            }69            return o.delete(t), { o: r }70          }71        }72        Object.defineProperty(e, '__esModule', { value: !0 }),73          (e.parseEvaluationResultValue = function t(e, r = []) {74            if (!Object.is(e, void 0)) {75              if ('object' == typeof e && e) {76                if ('v' in e) {77                  if ('undefined' === e.v) return78                  return 'null' === e.v79                    ? null80                    : 'NaN' === e.v81                    ? NaN82                    : 'Infinity' === e.v83                    ? 1 / 084                    : '-Infinity' === e.v85                    ? -1 / 086                    : '-0' === e.v87                    ? -088                    : void 089                }90                if ('d' in e) return new Date(e.d)91                if ('r' in e) return new RegExp(e.r.p, e.r.f)92                if ('a' in e) return e.a.map((e) => t(e, r))93                if ('o' in e) {94                  const n = {}95                  for (const { k: o, v: i } of e.o) n[o] = t(i, r)96                  return n97                }98                if ('h' in e) return r[e.h]99              }100              return e101            }102          }),103          (e.serializeAsCallArgument = function (t, e) {104            return n(t, e, new Set())105          })106      }107    },108    e = {}109  function r(n) {110    var o = e[n]111    if (void 0 !== o) return o.exports112    var i = (e[n] = { exports: {} })113    return t[n](i, i.exports, r), i.exports114  }115  r.g = (function () {116    if ('object' == typeof globalThis) return globalThis117    try {118      return this || new Function('return this')()119    } catch (t) {120      if ('object' == typeof window) return window121    }122  })()123  var n = {}124  ;(() => {125    var t = n126    t.default = void 0127    var e = r(645)128    t.default = class {129      evaluate(t, n, o, i, ...u) {130        const a = u.slice(0, i),131          f = u.slice(i),132          s = a.map((t) => (0, e.parseEvaluationResultValue)(t, f))133        let c = r.g.eval(o)134        return (135          !0 === t136            ? (c = c(...s))137            : !1 === t138            ? (c = c)139            : 'function' == typeof c && (c = c(...s)),140          n ? this._promiseAwareJsonValueNoThrow(c) : c141        )142      }143      jsonValue(t, r) {144        if (!Object.is(r, void 0))145          return (0, e.serializeAsCallArgument)(r, (t) => ({ fallThrough: t }))146      }147      _promiseAwareJsonValueNoThrow(t) {148        const e = (t) => {149          try {150            return this.jsonValue(!0, t)151          } catch (t) {152            return153          }154        }155        return t && 'object' == typeof t && 'function' == typeof t.then156          ? (async () => {157              const r = await t158              return e(r)159            })()160          : e(t)161      }162    }163  })(),164    (pwExport = n.default)...utilityScriptSerializers.js
Source:utilityScriptSerializers.js  
...54    if ('h' in value) return handles[value.h];55  }56  return value;57}58function serializeAsCallArgument(value, handleSerializer) {59  return serialize(value, handleSerializer, new Set());60}61function serialize(value, handleSerializer, visited) {62  const result = handleSerializer(value);63  if ('fallThrough' in result) value = result.fallThrough;else return result;64  if (visited.has(value)) throw new Error('Argument is a circular structure');65  if (typeof value === 'symbol') return {66    v: 'undefined'67  };68  if (Object.is(value, undefined)) return {69    v: 'undefined'70  };71  if (Object.is(value, null)) return {72    v: 'null'...Using AI Code Generation
1const { serializeAsCallArgument } = require('playwright/lib/client/serializers');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const page = await browser.newPage();6  const value = await serializeAsCallArgument(page);7  console.log(value);8  await browser.close();9})();10const { serializeAsCallArgument } = require('playwright/lib/client/serializers');11const { chromium } = require('playwright');12(async () => {13  const browser = await chromium.launch();14  const page = await browser.newPage();15  const value = await serializeAsCallArgument(page);16  console.log(value);17  await browser.close();18})();Using AI Code Generation
1const { serializeAsCallArgument } = require('playwright/lib/server/serializers');2const { serializeAsCallArgument } = require('playwright/lib/server/serializers');3const { serializeAsCallArgument } = require('playwright/lib/server/serializers');4const { serializeAsCallArgument } = require('playwright/lib/server/serializers');5const { serializeAsCallArgument } = require('playwright/lib/server/serializers');6const { serializeAsCallArgument } = require('playwright/lib/server/serializers');7const { serializeAsCallArgument } = require('playwright/lib/server/serializers');8const { serializeAsCallArgument } = require('playwright/lib/server/serializers');9const { serializeAsCallArgument } = require('playwright/lib/server/serializers');10const { serializeAsCallArgument } = require('playwright/lib/server/serializers');11const { serializeAsCallArgument } = require('playwright/lib/server/serializers');12const { serializeAsCallArgument } = require('playwright/lib/server/serializers');13const { serializeAsCallArgument } = require('playwright/lib/server/serializers');14const { serializeAsCallArgument } = require('playwright/lib/server/serializers');15const { serializeAsCallArgument } = require('playwright/lib/server/serializers');16const {Using AI Code Generation
1const { serializeAsCallArgument } = require('playwright/lib/server/serializers');2const { serializeAsCallArgument } = require('playwright/lib/server/serializers');3const { serializeAsCallArgument } = require('playwright/lib/server/serializers');4const { serializeAsCallArgument } = require('playwright/lib/server/serializers');5const { serializeAsCallArgument } = require('playwright/lib/server/serializers');6const { serializeAsCallArgument } = require('playwright/lib/server/serializers');7const { serializeAsCallArgument } = require('playwright/lib/server/serializers');8const { serializeAsCallArgument } = require('playwright/lib/server/serializers');9const { serializeAsCallArgument } = require('playwright/lib/server/serializers');10const { serializeAsCallArgument } = require('playwright/lib/server/serializers');11const { serializeAsCallArgument } = require('playwright/lib/server/serializers');12const { serializeAsCallArgument } = require('playwright/lib/server/serializers');13const { serializeAsCallArgument } = require('playwright/lib/server/serializers');14const { serializeAsCallArgument } = require('playwright/lib/server/serializers');15const { serializeAsCallArgument } = require('playwright/lib/server/serializers');16const { serializeAsCallArgument } = require('playwright/lib/server/serializers');Using AI Code Generation
1const { serializeAsCallArgument } = require('playwright/lib/server/serializers');2const { serializeAsCallArgument } = require('playwright/lib/server/serializers');3const { serializeAsCallArgument } = require('playwright/lib/server/serializers');4const serialized = serializeAsCallArgument({ a: 1, b: 2 });5console.log(serialized);6const { serializeAsCallArgument } = require('playwright/lib/server/serializers');7const { serializeAsCallArgument } = require('playwright/lib/server/serializers');8const { serializeAsCallArgument } = require('playwright/lib/server/serializers');9const serialized = serializeAsCallArgument({ a: 1, b: 2 });10console.log(serialized);11const { serializeAsCallArgument } = require('playwright/lib/server/serializers');12const { serializeAsCallArgument } = require('playwright/lib/server/serializers');13const { serializeAsCallArgument } = require('playwright/lib/server/serializers');14const serialized = serializeAsCallArgument({ a: 1, b: 2 });15console.log(serialized);16const { serializeAsCallArgument } = require('playwright/lib/server/serializers');17const { serializeAsCallArgument } = require('playwright/lib/server/serializers');18const { serializeAsCallArgument } = require('playwright/lib/server/serializers');19const serialized = serializeAsCallArgument({ a: 1, b: 2 });20console.log(serialized);21const { serializeAsCallArgument } = requireUsing AI Code Generation
1const { serializeAsCallArgument } = require(‘playwright/lib/client/serializers’);2const { chromium } = require(‘playwright’);3(async () => {4const browser = await chromium.launch();5const page = await browser.newPage();6const link = await page.$(‘text=Get started’);7const linkText = await link.innerText();8const linkTextSerialized = serializeAsCallArgument(linkText);9console.log(linkTextSerialized);10await browser.close();11})();12const { serializeAsCallArgument } = require(‘playwright/lib/client/serializers’);13const { chromium } = require(‘playwright’);14(async () => {15const browser = await chromium.launch();16const page = await browser.newPage();17const link = await page.$(‘text=Get started’);18const linkText = await link.innerText();19const linkTextSerialized = serializeAsCallArgument(linkText);20console.log(linkTextSerialized);21await browser.close();22})();23const { serializeAsCallArgument } = require(‘playwright/lib/client/serializers’);24const { chromium } = require(‘playwright’);25(async () => {26const browser = await chromium.launch();27const page = await browser.newPage();28const link = await page.$(‘text=Get started’);29const linkText = await link.innerText();30const linkTextSerialized = serializeAsCallArgument(linkText);31console.log(linkTextSerialized);32await browser.close();33})();34const { serializeAsCallArgument } = require(‘playwright/lib/client/serializers’);35const { chromium } = require(‘playwright’);36(async () => {37const browser = await chromium.launch();38const page = await browser.newPage();39const link = await page.$(‘text=Get started’);40const linkText = await link.innerText();Using AI Code Generation
1const { serializeAsCallArgument } = require('playwright/lib/server/common/serializers');2console.log(serializeAsCallArgument(1));3console.log(serializeAsCallArgument({ a: 1 }));4console.log(serializeAsCallArgument([1, 2, 3]));5console.log(serializeAsCallArgument(new Set([1, 2, 3])));6console.log(serializeAsCallArgument(new Map([[1, 2], [3, 4]])));7console.log(serializeAsCallArgument(new Date()));8console.log(serializeAsCallArgument(/abc/));9const { serializeAsCallArgument } = require('playwright/lib/server/common/serializers');10console.log(serializeAsCallArgument(1));11console.log(serializeAsCallArgument({ a: 1 }));12console.log(serializeAsCallArgument([1, 2, 3]));13console.log(serializeAsCallArgument(new Set([1, 2, 3])));14console.log(serializeAsCallArgument(new Map([[1, 2], [3, 4]])));15console.log(serializeAsCallArgument(new Date()));16console.log(serializeAsCallArgument(/abc/));17const { serializeAsCallArgument } = require('playwright/lib/server/common/serializers');18console.log(serializeAsCallArgument(1));19console.log(serializeAsCallArgument({ a: 1 }));20console.log(serializeAsCallArgument([Using AI Code Generation
1const { serializeAsCallArgument } = require('playwright/lib/server/common/serializers');2const { chromium } = require('playwright');3const { test } = require('@playwright/test');4test('test', async ({ page }) => {5  await page.click('text=Get Started');6  const serialized = serializeAsCallArgument(page);7  console.log(serialized);8});9import { chromium, Page } from 'playwright';10import { test } from '@playwright/test';11test('test', async ({ page }) => {12  await page.click('text=Get Started');13  const serialized = serializeAsCallArgument(page);14  console.log(serialized);15});16const { chromium, Page } = require('playwright');17const { test } = require('@playwright/test');18test('test', async ({ page }) => {19  await page.click('text=Get Started');20  const serialized = serializeAsCallArgument(page);21  console.log(serialized);22});23import { chromium, Page } from 'playwright';24import { test } from '@playwright/test';25test('test', async ({ page }) => {26  await page.click('text=Get Started');27  const serialized = serializeAsCallArgument(page);28  console.log(serialized);29});30const { chromium, Page } = require('playwright');31const { test } = require('@playwright/test');32test('test', async ({ page }) => {33  await page.click('text=Get Started');34  const serialized = serializeAsCallArgument(page);35  console.log(serialized);36});37const { chromium, Page } = require('playwright');38const { test } = require('@playwright/test');39test('test', async ({ page }) => {40  await page.click('text=Get Started');41  const serialized = serializeAsCallArgument(page);42  console.log(serialized);43});44import { chromium, Page } from 'playwright';45importUsing AI Code Generation
1const { serializeAsCallArgument } = require('@playwright/test/lib/server/frames');2const obj = {a: 1, b: 2};3const arg = serializeAsCallArgument(obj);4const page = await context.newPage();5await page.evaluate(arg => console.log(arg), arg);6const page = await context.newPage();7await page.evaluate(({a, b}) => console.log(a, b), arg);8const page = await context.newPage();9const handle = await page.evaluateHandle(arg => arg, arg);10const json = await handle.jsonValue();11console.log(json);Using AI Code Generation
1const { serializeAsCallArgument } = require('playwright-core/lib/server/serializers');2const data = serializeAsCallArgument(element);3console.log(data);4const { deserializeCallArgument } = require('playwright-core/lib/server/serializers');5const element = deserializeCallArgument(data);6console.log(element);7{ type: 'object',8   { type: 'node',9     attributes: { id: 'button1', class: 'btn btn-primary' },10     localName: 'button' } }LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.
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