Best JavaScript code snippet using playwright-internal
ReactWheelHandler.js
Source:ReactWheelHandler.js  
1/**2 * Copyright (c) 2015, Facebook, Inc.3 * All rights reserved.4 *5 * This source code is licensed under the BSD-style license found in the6 * LICENSE file in the root directory of this source tree. An additional grant7 * of patent rights can be found in the PATENTS file in the same directory.8 *9 * This is utility that hanlds onWheel events and calls provided wheel10 * callback with correct frame rate.11 *12 * @providesModule ReactWheelHandler13 * @typechecks14 */15'use strict';16var emptyFunction = require('emptyFunction');17var normalizeWheel = require('normalizeWheel');18var requestAnimationFramePolyfill = require('requestAnimationFramePolyfill');19class ReactWheelHandler {20  /**21   * onWheel is the callback that will be called with right frame rate if22   * any wheel events happened23   * onWheel should is to be called with two arguments: deltaX and deltaY in24   * this order25   */26  constructor(27    /*function*/ onWheel,28    /*boolean|function*/ handleScrollX,29    /*boolean|function*/ handleScrollY,30    /*?boolean|?function*/ stopPropagation31  ) {32    this._animationFrameID = null;33    this._deltaX = 0;34    this._deltaY = 0;35    this._didWheel = this._didWheel.bind(this);36    if (typeof handleScrollX !== 'function') {37      handleScrollX = handleScrollX ?38        emptyFunction.thatReturnsTrue :39        emptyFunction.thatReturnsFalse;40    }41    if (typeof handleScrollY !== 'function') {42      handleScrollY = handleScrollY ?43        emptyFunction.thatReturnsTrue :44        emptyFunction.thatReturnsFalse;45    }46    if (typeof stopPropagation !== 'function') {47      stopPropagation = stopPropagation ?48        emptyFunction.thatReturnsTrue :49        emptyFunction.thatReturnsFalse;50    }51    this._handleScrollX = handleScrollX;52    this._handleScrollY = handleScrollY;53    this._stopPropagation = stopPropagation;54    this._onWheelCallback = onWheel;55    this.onWheel = this.onWheel.bind(this);56  }57  onWheel(/*object*/ event) {58    var normalizedEvent = normalizeWheel(event);59    var deltaX = this._deltaX + normalizedEvent.pixelX;60    var deltaY = this._deltaY + normalizedEvent.pixelY;61    var handleScrollX = this._handleScrollX(deltaX, deltaY);62    var handleScrollY = this._handleScrollY(deltaY, deltaX);63    if (!handleScrollX && !handleScrollY) {64      return;65    }66    this._deltaX += handleScrollX ? normalizedEvent.pixelX : 0;67    this._deltaY += handleScrollY ? normalizedEvent.pixelY : 0;68    event.preventDefault();69    var changed;70    if (this._deltaX !== 0 || this._deltaY !== 0) {71      if (this._stopPropagation()) {72        event.stopPropagation();73      }74      changed = true;75    }76    if (changed === true && this._animationFrameID === null) {77      this._animationFrameID = requestAnimationFramePolyfill(this._didWheel);78    }79  }80  _didWheel() {81    this._animationFrameID = null;82    this._onWheelCallback(this._deltaX, this._deltaY);83    this._deltaX = 0;84    this._deltaY = 0;85  }86}...SyntheticEvent.js
Source:SyntheticEvent.js  
1/* */ 2'use strict';3var PooledClass = require("./PooledClass");4var assign = require("./Object.assign");5var emptyFunction = require("./emptyFunction");6var getEventTarget = require("./getEventTarget");7var EventInterface = {8  type: null,9  target: getEventTarget,10  currentTarget: emptyFunction.thatReturnsNull,11  eventPhase: null,12  bubbles: null,13  cancelable: null,14  timeStamp: function(event) {15    return event.timeStamp || Date.now();16  },17  defaultPrevented: null,18  isTrusted: null19};20function SyntheticEvent(dispatchConfig, dispatchMarker, nativeEvent) {21  this.dispatchConfig = dispatchConfig;22  this.dispatchMarker = dispatchMarker;23  this.nativeEvent = nativeEvent;24  var Interface = this.constructor.Interface;25  for (var propName in Interface) {26    if (!Interface.hasOwnProperty(propName)) {27      continue;28    }29    var normalize = Interface[propName];30    if (normalize) {31      this[propName] = normalize(nativeEvent);32    } else {33      this[propName] = nativeEvent[propName];34    }35  }36  var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false;37  if (defaultPrevented) {38    this.isDefaultPrevented = emptyFunction.thatReturnsTrue;39  } else {40    this.isDefaultPrevented = emptyFunction.thatReturnsFalse;41  }42  this.isPropagationStopped = emptyFunction.thatReturnsFalse;43}44assign(SyntheticEvent.prototype, {45  preventDefault: function() {46    this.defaultPrevented = true;47    var event = this.nativeEvent;48    if (event.preventDefault) {49      event.preventDefault();50    } else {51      event.returnValue = false;52    }53    this.isDefaultPrevented = emptyFunction.thatReturnsTrue;54  },55  stopPropagation: function() {56    var event = this.nativeEvent;57    if (event.stopPropagation) {58      event.stopPropagation();59    } else {60      event.cancelBubble = true;61    }62    this.isPropagationStopped = emptyFunction.thatReturnsTrue;63  },64  persist: function() {65    this.isPersistent = emptyFunction.thatReturnsTrue;66  },67  isPersistent: emptyFunction.thatReturnsFalse,68  destructor: function() {69    var Interface = this.constructor.Interface;70    for (var propName in Interface) {71      this[propName] = null;72    }73    this.dispatchConfig = null;74    this.dispatchMarker = null;75    this.nativeEvent = null;76  }77});78SyntheticEvent.Interface = EventInterface;79SyntheticEvent.augmentClass = function(Class, Interface) {80  var Super = this;81  var prototype = Object.create(Super.prototype);82  assign(prototype, Class.prototype);83  Class.prototype = prototype;84  Class.prototype.constructor = Class;85  Class.Interface = assign({}, Super.Interface, Interface);86  Class.augmentClass = Super.augmentClass;87  PooledClass.addPoolingTo(Class, PooledClass.threeArgumentPooler);88};89PooledClass.addPoolingTo(SyntheticEvent, PooledClass.threeArgumentPooler);...emptyFunction.js
Source:emptyFunction.js  
1/**2 * @flow3 * @copyright Prometheus Research, LLC 20144 */5'use strict';6function emptyFunction() {7}8emptyFunction.toString = function() {9  return '<empty function>';10};11emptyFunction.thatReturnsTrue = function(): bool {12  return true;13};14emptyFunction.thatReturnsTrue.toString = function() {15  return '<empty function that returns true>';16};17emptyFunction.thatReturnsArgument = function<A>(arg: A): A {18  return arg;19};20emptyFunction.thatReturnsArgument.toString = function() {21  return '<empty function that returns argument>';22};...Using AI Code Generation
1const { PlaywrightInternal } = require('playwright');2console.log(PlaywrightInternal.thatReturnsTrue());3const { PlaywrightInternal } = require('playwright');4console.log(PlaywrightInternal.thatReturnsFalse());5const { PlaywrightInternal } = require('playwright');6console.log(PlaywrightInternal.thatReturnsNull());7const { PlaywrightInternal } = require('playwright');8console.log(PlaywrightInternal.thatReturnsThis());9const { PlaywrightInternal } = require('playwright');10console.log(PlaywrightInternal.thatReturnsArgument());11const { PlaywrightInternal } = require('playwright');12console.log(PlaywrightInternal.noop());13const { PlaywrightInternal } = require('playwright');14console.log(PlaywrightInternal.assert());15const { PlaywrightInternal } = require('playwright');16console.log(PlaywrightInternal.valueFromEvaluate());17const { PlaywrightInternal } = require('playwright');18console.log(PlaywrightInternal.valueFromEvaluateHandle());19const { PlaywrightInternal } = require('playwright');20console.log(PlaywrightInternal.getExceptionMessage());21const { PlaywrightInternal } = require('playwright');22console.log(PlaywrightInternal.getExceptionMessage());23const { PlaywrightInternal } = require('playwright');24console.log(PlaywrightInternal.getExceptionMessage());25const { PlaywrightInternal } = require('playwright');26console.log(PlaywrightInternal.getExceptionMessage());27const { PlaywrightInternal } = require('playwright');28console.log(PlaywrightInternal.getExceptionMessage());Using AI Code Generation
1const { ThatReturnsTrue } = require('playwright/lib/utils/utils');2console.log(ThatReturnsTrue());3const { ThatReturnsFalse } = require('playwright/lib/utils/utils');4console.log(ThatReturnsFalse());5const { ThatReturnsZero } = require('playwright/lib/utils/utils');6console.log(ThatReturnsZero());7const { ThatReturnsNull } = require('playwright/lib/utils/utils');8console.log(ThatReturnsNull());9const { ThatReturnsThis } = require('playwright/lib/utils/utils');10console.log(ThatReturnsThis());11const { ThatReturnsArgument } = require('playwright/lib/utils/utils');12console.log(ThatReturnsArgument());13const { Empty } = require('playwright/lib/utils/utils');14console.log(Empty());15{}Using AI Code Generation
1const { ThatReturnsTrue } = require('playwright/lib/utils/utils');2const { ThatReturnsFalse } = require('playwright/lib/utils/utils');3console.log(ThatReturnsTrue());4console.log(ThatReturnsFalse());5ThatReturnsTrue() and ThatReturnsFalse() methods of Playwright Internal utils6ThatReturnsTrue() method of Playwright Internal utils7ThatReturnsFalse() method of Playwright Internal utilsUsing AI Code Generation
1const { Playwright } = require('playwright');2const playwright = new Playwright();3const browser = await playwright.chromium.launch();4const context = await browser.newContext();5const page = await context.newPage();6const result = await page.evaluate(() => {7    return Playwright.Internal.thatReturnsTrue();8});9console.log(result);10await browser.close();Using AI Code Generation
1const { Playwright } = require('@playwright/test');2const playwright = new Playwright();3const browser = await playwright.chromium.launch();4const context = await browser.newContext();5const page = await context.newPage();6const result = await page.evaluate(() => {7  return Playwright._internal.thatReturnsTrue();8});9console.log(result);Using AI Code Generation
1const { ThatReturnsTrue } = require('playwright/lib/utils/utils');2const { ThatReturnsFalse } = require('playwright/lib/utils/utils');3const { ThatReturnsZero } = require('playwright/lib/utils/utils');4const { ThatReturnsThis } = require('playwright/lib/utils/utils');5const { ThatReturnsNull } = require('playwright/lib/utils/utils');6const { ThatReturnsArgument } = require('playwright/lib/utils/utils');7const { ThatReturnsNewError } = require('playwright/lib/utils/utils');8const { ThatReturns } = require('playwright/lib/utils/utils');9const { ThatReturnsFalse } = require('playwright/lib/utils/utils');10const { ThatReturnsFalse } = require('playwright/lib/utils/utils');11const { ThatReturnsFalse } = require('playwright/lib/utils/utils');12const { ThatReturnsFalse } = require('playwright/lib/utils/utils');13const { ThatReturnsFalse } = require('Using AI Code Generation
1const { ThatReturnsTrue } = require('playwright/lib/internal/utils');2console.log(ThatReturnsTrue());3const { ThatReturnsTrue } = require('playwright/lib/internal/utils');4console.log(ThatReturnsTrue());5const { ThatReturnsTrue } = require('playwright/lib/internal/utils');6console.log(ThatReturnsTrue());7const { ThatReturnsTrue } = require('playwright/lib/internal/utils');8console.log(ThatReturnsTrue());9const { ThatReturnsTrue } = require('playwright/lib/internal/utils');10console.log(ThatReturnsTrue());11const { ThatReturnsTrue } = require('playwright/lib/internal/utils');12console.log(ThatReturnsTrue());13const { ThatReturnsTrue } = require('playwright/lib/internal/utils');14console.log(ThatReturnsTrue());15const { ThatReturnsTrue } = require('playwright/lib/internal/utils');16console.log(ThatReturnsTrue());17const { ThatReturnsTrue } = require('playwright/lib/internal/utils');18console.log(ThatReturnsTrue());19const { ThatReturnsTrue } = require('playwright/lib/internal/utils');20console.log(ThatReturnsTrue());21const { ThatReturnsTrue } = require('playwright/lib/internal/utils');22console.log(ThatReturnsTrue());23const { ThatReturnsTrue } = require('playwright/lib/internal/utils');24console.log(ThatReturnsTrue());25const { ThatReturnsTrue } = require('playwright/lib/internal/utils');26console.log(ThatReturnsTrue());27const { ThatReturnsTrue } = require('playwright/lib/internal/utils');28console.log(ThatReturnsTrue());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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