Best JavaScript code snippet using playwright-internal
ReactDOMEventListener.js
Source:ReactDOMEventListener.js  
...214function dispatchInteractiveEvent(topLevelType, eventSystemFlags, nativeEvent) {215  if (!enableEventAPI || shouldflushDiscreteUpdates(nativeEvent.timeStamp)) {216    flushDiscreteUpdates();217  }218  discreteUpdates(dispatchEvent, topLevelType, eventSystemFlags, nativeEvent);219}220function dispatchEventForPluginEventSystem(221  topLevelType: DOMTopLevelEventType,222  eventSystemFlags: EventSystemFlags,223  nativeEvent: AnyNativeEvent,224  targetInst: null | Fiber,225): void {226  const bookKeeping = getTopLevelCallbackBookKeeping(227    topLevelType,228    nativeEvent,229    targetInst,230  );231  try {232    // Event queue being processed in the same cycle allows...ReactDOM.库集合出口.js
Source:ReactDOM.库集合出口.js  
1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @flow8 */9import type {ReactNodeList} from 'shared/ReactTypes';10import type {Container} from './ReactDOMHostConfig';11import '../shared/checkReact';12import './ReactDOMClientInjection';13import {14  findDOMNode,15  render,16  hydrate,17  unstable_renderSubtreeIntoContainer,18  unmountComponentAtNode,19} from './ReactDOMLegacy';20import {createRoot, createBlockingRoot, isValidContainer} from './ReactDOMRoot';21import {22  batchedEventUpdates,23  batchedUpdates,24  discreteUpdates,25  flushDiscreteUpdates,26  flushSync,27  flushControlled,28  injectIntoDevTools,29  flushPassiveEffects,30  IsThisRendererActing,31  attemptSynchronousHydration,32  attemptUserBlockingHydration,33  attemptContinuousHydration,34  attemptHydrationAtCurrentPriority,35} from 'react-reconciler/inline.dom';36import {createPortal as createPortalImpl} from 'shared/ReactPortal';37import {canUseDOM} from 'shared/ExecutionEnvironment';38import {setBatchingImplementation} from 'legacy-events/ReactGenericBatching';39import {40  setRestoreImplementation,41  enqueueStateRestore,42  restoreStateIfNeeded,43} from 'legacy-events/ReactControlledComponent';44import {runEventsInBatch} from 'legacy-events/EventBatching';45import {46  eventNameDispatchConfigs,47  injectEventPluginsByName,48} from 'legacy-events/EventPluginRegistry';49import {50  accumulateTwoPhaseDispatches,51  accumulateDirectDispatches,52} from 'legacy-events/EventPropagators';53import ReactVersion from 'shared/ReactVersion';54import invariant from 'shared/invariant';55import {warnUnstableRenderSubtreeIntoContainer} from 'shared/ReactFeatureFlags';56import {57  getInstanceFromNode,58  getNodeFromInstance,59  getFiberCurrentPropsFromNode,60  getClosestInstanceFromNode,61} from './ReactDOMComponentTree';62import {restoreControlledState} from './ReactDOMComponent';63import {dispatchEvent} from '../events/ReactDOMEventListener';64import {65  setAttemptSynchronousHydration,66  setAttemptUserBlockingHydration,67  setAttemptContinuousHydration,68  setAttemptHydrationAtCurrentPriority,69  queueExplicitHydrationTarget,70} from '../events/ReactDOMEventReplaying';71setAttemptSynchronousHydration(attemptSynchronousHydration);72setAttemptUserBlockingHydration(attemptUserBlockingHydration);73setAttemptContinuousHydration(attemptContinuousHydration);74setAttemptHydrationAtCurrentPriority(attemptHydrationAtCurrentPriority);75let didWarnAboutUnstableCreatePortal = false;76let didWarnAboutUnstableRenderSubtreeIntoContainer = false;77if (__DEV__) { // Map, Setå
¼å®¹è¦æ±78  if (79    typeof Map !== 'function' ||80    // $FlowIssue Flow incorrectly thinks Map has no prototype81    Map.prototype == null ||82    typeof Map.prototype.forEach !== 'function' ||83    typeof Set !== 'function' ||84    // $FlowIssue Flow incorrectly thinks Set has no prototype85    Set.prototype == null ||86    typeof Set.prototype.clear !== 'function' ||87    typeof Set.prototype.forEach !== 'function'88  ) {89    console.error(90      'React depends on Map and Set built-in types. Make sure that you load a ' +91        'polyfill in older browsers. https://fb.me/react-polyfills',92    );93  }94}95setRestoreImplementation(restoreControlledState);96setBatchingImplementation(97  batchedUpdates,98  discreteUpdates,99  flushDiscreteUpdates,100  batchedEventUpdates,101);102function createPortal(103  children: ReactNodeList,104  container: Container,105  key: ?string = null,106): React$Portal {107  invariant(108    isValidContainer(container),109    'Target container is not a DOM element.',110  );111  // TODO: pass ReactDOM portal implementation as third argument112  // $FlowFixMe The Flow type is opaque but there's no way to actually create it.113  return createPortalImpl(children, container, null, key);114}115function scheduleHydration(target: Node) {116  if (target) {117    queueExplicitHydrationTarget(target);118  }119}120function renderSubtreeIntoContainer(121  parentComponent: React$Component<any, any>,122  element: React$Element<any>,123  containerNode: Container,124  callback: ?Function,125) {126  if (__DEV__) {127    if (128      warnUnstableRenderSubtreeIntoContainer &&129      !didWarnAboutUnstableRenderSubtreeIntoContainer130    ) {131      didWarnAboutUnstableRenderSubtreeIntoContainer = true;132      console.warn(133        'ReactDOM.unstable_renderSubtreeIntoContainer() is deprecated ' +134          'and will be removed in a future major release. Consider using ' +135          'React Portals instead.',136      );137    }138  }139  return unstable_renderSubtreeIntoContainer(140    parentComponent,141    element,142    containerNode,143    callback,144  );145}146function unstable_createPortal(147  children: ReactNodeList,148  container: Container,149  key: ?string = null,150) {151  if (__DEV__) {152    if (!didWarnAboutUnstableCreatePortal) {153      didWarnAboutUnstableCreatePortal = true;154      console.warn(155        'The ReactDOM.unstable_createPortal() alias has been deprecated, ' +156          'and will be removed in React 17+. Update your code to use ' +157          'ReactDOM.createPortal() instead. It has the exact same API, ' +158          'but without the "unstable_" prefix.',159      );160    }161  }162  return createPortal(children, container, key);163}164const Internals = {165  // Keep in sync with ReactDOMUnstableNativeDependencies.js166  // ReactTestUtils.js, and ReactTestUtilsAct.js. This is an array for better minification.167  Events: [168    getInstanceFromNode,169    getNodeFromInstance,170    getFiberCurrentPropsFromNode,171    injectEventPluginsByName,172    eventNameDispatchConfigs,173    accumulateTwoPhaseDispatches,174    accumulateDirectDispatches,175    enqueueStateRestore,176    restoreStateIfNeeded,177    dispatchEvent,178    runEventsInBatch,179    flushPassiveEffects,180    IsThisRendererActing,181  ],182};183export {184  createPortal,185  batchedUpdates as unstable_batchedUpdates,186  flushSync,187  Internals as __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED,188  ReactVersion as version,189  // Disabled behind disableLegacyReactDOMAPIs190  findDOMNode,191  hydrate,192  render,193  unmountComponentAtNode,194  // exposeConcurrentModeAPIs195  createRoot,196  createBlockingRoot,197  discreteUpdates as unstable_discreteUpdates,198  flushDiscreteUpdates as unstable_flushDiscreteUpdates,199  flushControlled as unstable_flushControlled,200  scheduleHydration as unstable_scheduleHydration,201  // Disabled behind disableUnstableRenderSubtreeIntoContainer202  renderSubtreeIntoContainer as unstable_renderSubtreeIntoContainer,203  // Disabled behind disableUnstableCreatePortal204  // Temporary alias since we already shipped React 16 RC with it.205  // TODO: remove in React 17.206  unstable_createPortal,207};208const foundDevTools = injectIntoDevTools({209  findFiberByHostInstance: getClosestInstanceFromNode,210  bundleType: __DEV__ ? 1 : 0,211  version: ReactVersion,212  rendererPackageName: 'react-dom',213});214if (__DEV__) {215  if (!foundDevTools && canUseDOM && window.top === window.self) {216    // If we're in Chrome or Firefox, provide a download link if not installed.217    if (218      (navigator.userAgent.indexOf('Chrome') > -1 &&219        navigator.userAgent.indexOf('Edge') === -1) ||220      navigator.userAgent.indexOf('Firefox') > -1221    ) {222      const protocol = window.location.protocol;223      // Don't warn in exotic cases like chrome-extension://.224      if (/^(https?|file):$/.test(protocol)) {225        // eslint-disable-next-line react-internal/no-production-logging226        console.info(227          '%cDownload the React DevTools ' +228            'for a better development experience: ' +229            'https://fb.me/react-devtools' +230            (protocol === 'file:'231              ? '\nYou might need to use a local HTTP server (instead of file://): ' +232                'https://fb.me/react-devtools-faq'233              : ''),234          'font-weight:bold',235        );236      }237    }238  }...ReactFiberReconciler.js
Source:ReactFiberReconciler.js  
1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @flow8 */9import {enableNewReconciler} from 'shared/ReactFeatureFlags';10// The entry file imports either the old or new version of the reconciler.11// During build and testing, this indirection is always shimmed with the actual12// modules, otherwise both reconcilers would be initialized. So this is really13// only here for Flow purposes.14import {15  createContainer as createContainer_old,16  updateContainer as updateContainer_old,17  batchedEventUpdates as batchedEventUpdates_old,18  batchedUpdates as batchedUpdates_old,19  unbatchedUpdates as unbatchedUpdates_old,20  deferredUpdates as deferredUpdates_old,21  syncUpdates as syncUpdates_old,22  discreteUpdates as discreteUpdates_old,23  flushDiscreteUpdates as flushDiscreteUpdates_old,24  flushControlled as flushControlled_old,25  flushSync as flushSync_old,26  flushPassiveEffects as flushPassiveEffects_old,27  IsThisRendererActing as IsThisRendererActing_old,28  getPublicRootInstance as getPublicRootInstance_old,29  attemptSynchronousHydration as attemptSynchronousHydration_old,30  attemptUserBlockingHydration as attemptUserBlockingHydration_old,31  attemptContinuousHydration as attemptContinuousHydration_old,32  attemptHydrationAtCurrentPriority as attemptHydrationAtCurrentPriority_old,33  findHostInstance as findHostInstance_old,34  findHostInstanceWithWarning as findHostInstanceWithWarning_old,35  findHostInstanceWithNoPortals as findHostInstanceWithNoPortals_old,36  shouldSuspend as shouldSuspend_old,37  injectIntoDevTools as injectIntoDevTools_old,38  act as act_old,39  createPortal as createPortal_old,40} from './ReactFiberReconciler.old';41import {42  createContainer as createContainer_new,43  updateContainer as updateContainer_new,44  batchedEventUpdates as batchedEventUpdates_new,45  batchedUpdates as batchedUpdates_new,46  unbatchedUpdates as unbatchedUpdates_new,47  deferredUpdates as deferredUpdates_new,48  syncUpdates as syncUpdates_new,49  discreteUpdates as discreteUpdates_new,50  flushDiscreteUpdates as flushDiscreteUpdates_new,51  flushControlled as flushControlled_new,52  flushSync as flushSync_new,53  flushPassiveEffects as flushPassiveEffects_new,54  IsThisRendererActing as IsThisRendererActing_new,55  getPublicRootInstance as getPublicRootInstance_new,56  attemptSynchronousHydration as attemptSynchronousHydration_new,57  attemptUserBlockingHydration as attemptUserBlockingHydration_new,58  attemptContinuousHydration as attemptContinuousHydration_new,59  attemptHydrationAtCurrentPriority as attemptHydrationAtCurrentPriority_new,60  findHostInstance as findHostInstance_new,61  findHostInstanceWithWarning as findHostInstanceWithWarning_new,62  findHostInstanceWithNoPortals as findHostInstanceWithNoPortals_new,63  shouldSuspend as shouldSuspend_new,64  injectIntoDevTools as injectIntoDevTools_new,65  act as act_new,66  createPortal as createPortal_new,67} from './ReactFiberReconciler.new';68export const createContainer = enableNewReconciler69  ? createContainer_new70  : createContainer_old;71export const updateContainer = enableNewReconciler72  ? updateContainer_new73  : updateContainer_old;74export const batchedEventUpdates = enableNewReconciler75  ? batchedEventUpdates_new76  : batchedEventUpdates_old;77export const batchedUpdates = enableNewReconciler78  ? batchedUpdates_new79  : batchedUpdates_old;80export const unbatchedUpdates = enableNewReconciler81  ? unbatchedUpdates_new82  : unbatchedUpdates_old;83export const deferredUpdates = enableNewReconciler84  ? deferredUpdates_new85  : deferredUpdates_old;86export const syncUpdates = enableNewReconciler87  ? syncUpdates_new88  : syncUpdates_old;89export const discreteUpdates = enableNewReconciler90  ? discreteUpdates_new91  : discreteUpdates_old;92export const flushDiscreteUpdates = enableNewReconciler93  ? flushDiscreteUpdates_new94  : flushDiscreteUpdates_old;95export const flushControlled = enableNewReconciler96  ? flushControlled_new97  : flushControlled_old;98export const flushSync = enableNewReconciler ? flushSync_new : flushSync_old;99export const flushPassiveEffects = enableNewReconciler100  ? flushPassiveEffects_new101  : flushPassiveEffects_old;102export const IsThisRendererActing = enableNewReconciler103  ? IsThisRendererActing_new104  : IsThisRendererActing_old;105export const getPublicRootInstance = enableNewReconciler106  ? getPublicRootInstance_new107  : getPublicRootInstance_old;108export const attemptSynchronousHydration = enableNewReconciler109  ? attemptSynchronousHydration_new110  : attemptSynchronousHydration_old;111export const attemptUserBlockingHydration = enableNewReconciler112  ? attemptUserBlockingHydration_new113  : attemptUserBlockingHydration_old;114export const attemptContinuousHydration = enableNewReconciler115  ? attemptContinuousHydration_new116  : attemptContinuousHydration_old;117export const attemptHydrationAtCurrentPriority = enableNewReconciler118  ? attemptHydrationAtCurrentPriority_new119  : attemptHydrationAtCurrentPriority_old;120export const findHostInstance = enableNewReconciler121  ? findHostInstance_new122  : findHostInstance_old;123export const findHostInstanceWithWarning = enableNewReconciler124  ? findHostInstanceWithWarning_new125  : findHostInstanceWithWarning_old;126export const findHostInstanceWithNoPortals = enableNewReconciler127  ? findHostInstanceWithNoPortals_new128  : findHostInstanceWithNoPortals_old;129export const shouldSuspend = enableNewReconciler130  ? shouldSuspend_new131  : shouldSuspend_old;132export const injectIntoDevTools = enableNewReconciler133  ? injectIntoDevTools_new134  : injectIntoDevTools_old;135export const act = enableNewReconciler ? act_new : act_old;136export const createPortal = enableNewReconciler137  ? createPortal_new...index.js
Source:index.js  
1import {2	createContainer,3	updateContainer,4	getPublicRootInstance,5} from '../react-reconciler';6import {7	unbatchedUpdates,8	batchedUpdates,9	discreteUpdates,10	flushDiscreteUpdates,11	batchedEventUpdates,12} from '../react-reconciler/ReactFiberWorkLoop';13import { LegacyRoot } from '../shared/ReactRootTags';14import './ReactDOMClientInjection';15import CustomInjection from './injection/index';16import { setBatchingImplementation } from './events/ReactGenericBatching';17setBatchingImplementation(18	batchedUpdates,19	discreteUpdates,20	flushDiscreteUpdates,21	batchedEventUpdates,22);23/**24 * å
é¨åªæåè°25 * thenæ¹æ³æ·»å åè°ï¼å¦æä»»å¡å·²ç»è¢«æäº¤ï¼åç´æ¥è°ç¨ï¼26 * _onCommit æäº¤ï¼æ§è¡callbackæ°ç»å
çåè°ï¼ å¦æå·²ç»æäº¤åè¿åï¼ åªå¯ä»¥æäº¤ä¸æ¬¡ å¤äºæäº¤ç¶æthenç´æ¥æ§è¡27 */28class ReactWork {29	constructor() {30		this._callback = null;31		this._didCommit = false;32		this._onCommit = this._onCommit.bind(this);33	}34	then(onCommit) {35		if (this._didCommit) {36			onCommit();37			return;38		}39		let callback = this._callback || [];40		callback.push(onCommit);41	}42	_onCommit() {43		if (this._didCommit) {44			return;45		}46		this._didCommit = true;47		const callbacks = this._callback;48		if (callbacks === null) {49			return;50		}51		for (let i = 0; i < callbacks.length; i++) {52			const callback = callbacks[i];53			callback();54		}55	}56}57function commonRootRender(children, callback) {58	const root = this._internalRoot;59	const work = new ReactWork();60	callback = callback === undefined ? null : callback; // ???61	if (callback !== null) {62		work.then(callback);63	}64	updateContainer(children, root, work._onCommit);65	return work;66}67function commonUnmount(callback) {68	const root = this._internalRoot;69	const work = new ReactWork();70	callback = callback === undefined ? null : callback;71	if (callback !== null) {72		work.then(callback);73	}74	updateContainer(null, root, null, work._onCommit);75	return work;76}77class ReactRoot {78	constructor(container) {79		const root = createContainer(container);80		this._internalRoot = root;81	}82	render = commonRootRender;83	renderSubtreeIntoContainer() {}84}85function ReactSyncRoot(container, tag) {86	const root = createContainer(container, tag);87	this._internalRoot = root;88}89ReactSyncRoot.prototype.render = commonRootRender;90ReactSyncRoot.prototype.unmount = commonUnmount;91function createRootFromDOMContainer(container, forceHydrate) {92	let rootSibling;93	// å°containerçåèç¹å
¨é¨ç§»é¤94	while ((rootSibling = container.lastChild)) {95		container.removeChild(rootSibling);96	}97	return new ReactSyncRoot(container, LegacyRoot);98}99function renderSubtreeIntoContainer(100	parentComponent,101	children,102	container,103	forceHydrate,104	callback,105) {106	let root = container._reactRootContainer;107	// è·åå°containerä¸ç root container 妿ä¸åå¨ åè¯´ææ¯ç¬¬ä¸æ¸²æ åå建å个fiber root 对象108	let fiberRoot;109	if (!root) {110		root = container._reactRootContainer = createRootFromDOMContainer(111			container,112			forceHydrate,113		);114		fiberRoot = root._internalRoot;115		if (typeof callback === 'function') {116			const originCallback = callback;117			callback = function() {118				const instance = getPublicRootInstance(fiberRoot);119				originCallback.call(instance);120			};121		}122		unbatchedUpdates(() => {123			updateContainer(children, fiberRoot, parentComponent, callback);124		});125	} else {126		// TODO127	}128	return getPublicRootInstance(root._internalRoot);129}130const ReactDOM = {131	render(element, container, callback) {132		console.error('ececl');133		return renderSubtreeIntoContainer(134			null,135			element,136			container,137			false,138			callback,139		);140	},141	CustomInjection,142};...ReactDOM.js
Source:ReactDOM.js  
1import './ReactDOMClientInjection';2import { findDOMNode, render, hydrate, unmountComponentAtNode } from './ReactDOMLegacy';3import { createRoot, createBlockingRoot } from './ReactDOMRoot';4import {5  batchedEventUpdates,6  batchedUpdates,7  discreteUpdates,8  flushDiscreteUpdates,9  flushSync,10  attemptSynchronousHydration,11  attemptUserBlockingHydration,12  attemptContinuousHydration,13  attemptHydrationAtCurrentPriority,14} from 'react-reconciler/src/ReactFiberReconciler';15import { createPortal as createPortalImpl } from 'react-reconciler/src/ReactPortal';16import { restoreControlledState } from './ReactDOMComponent';17import {18  setAttemptSynchronousHydration,19  setAttemptUserBlockingHydration,20  setAttemptContinuousHydration,21  setAttemptHydrationAtCurrentPriority,22} from '../events/ReactDOMEventReplaying';23import { setBatchingImplementation } from '../events/ReactDOMUpdateBatching';24import { setRestoreImplementation } from '../events/ReactDOMControlledComponent';25setAttemptSynchronousHydration(attemptSynchronousHydration);26setAttemptUserBlockingHydration(attemptUserBlockingHydration);27setAttemptContinuousHydration(attemptContinuousHydration);28setAttemptHydrationAtCurrentPriority(attemptHydrationAtCurrentPriority);29setRestoreImplementation(restoreControlledState);30setBatchingImplementation(31  batchedUpdates,32  discreteUpdates,33  flushDiscreteUpdates,34  batchedEventUpdates35);36function createPortal(children, container, key) {37  return createPortalImpl(children, container, null, key);38}39export {40  createPortal,41  flushSync,42  findDOMNode,43  hydrate,44  render,45  unmountComponentAtNode,46  createRoot,47  createBlockingRoot,...eventHandler.js
Source:eventHandler.js  
...4function listener() {5  return window.dispatchDiscreteEvent(topLevelType, eventSystemFlags, container, nativeEvent) {6    flushDiscreateUpdatesIfNeeded(nativeEvent.timeStamp);7    // dispatchEvent, dispatchUserBlockingUpdate, dispatchEvent8    discreteUpdates(dispatchEvent, topLevelType, eventSystemFlags)9  }10}11/***12 * äºä»¶åè°çæ¶é13 */14function traverseTwoPhase(inst, fn, arg) {15  // å®ä¹ä¸ä¸ªpathæ°ç»16  var path = [];17  while(inst) {18    // å°å½åèç¹æ¶éè¿pathæ°ç»19    path.push(inst);20    // å䏿¶étag===HostComponentçç¶èç¹ãHostComponentåªæ¶éDOMå
素对åºçFiberèç¹21    inst = getParent(inst);22  }...ReactNoop.js
Source:ReactNoop.js  
1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @flow8 */9/**10 * This is a renderer of React that doesn't have a render target output.11 * It is useful to demonstrate the internals of the reconciler in isolation12 * and for testing semantics of reconciliation separate from the host13 * environment.14 */15import ReactFiberReconciler from 'react-reconciler';16import createReactNoop from './createReactNoop';17export const {18  _Scheduler,19  getChildren,20  getPendingChildren,21  getOrCreateRootContainer,22  createRoot,23  createBlockingRoot,24  createLegacyRoot,25  getChildrenAsJSX,26  getPendingChildrenAsJSX,27  createPortal,28  render,29  renderLegacySyncRoot,30  renderToRootWithID,31  unmountRootWithID,32  findInstance,33  flushNextYield,34  flushWithHostCounters,35  expire,36  flushExpired,37  batchedUpdates,38  deferredUpdates,39  unbatchedUpdates,40  discreteUpdates,41  flushDiscreteUpdates,42  flushSync,43  flushPassiveEffects,44  act,45  dumpTree,46  getRoot,47  // TODO: Remove this after callers migrate to alternatives.48  unstable_runWithPriority,49} = createReactNoop(50  ReactFiberReconciler, // reconciler51  true, // useMutation...discreteUpdates$1.js
Source:discreteUpdates$1.js  
1function discreteUpdates$1(fn, a, b, c) {2    var prevExecutionContext = executionContext;3    executionContext |= DiscreteEventContext;4    try {5        // Should this6        return runWithPriority$2(UserBlockingPriority$2, fn.bind(null, a, b, c));7    } finally {8        executionContext = prevExecutionContext;9        if (executionContext === NoContext) {10            // Flush the immediate callbacks that were scheduled during this batch11            flushSyncCallbackQueue();12        }13    }...Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch({ headless: false });4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.evaluate(() => {7    const {discreteUpdates} = require('@playwright/test/lib/utils');8    discreteUpdates(() => {9      document.querySelector('input[name="q"]').value = 'hello';10    });11  });12  await browser.close();13})();14#### `constructor(options)`15#### `run()`Using AI Code Generation
1const {chromium} = require('playwright');2(async () => {3  const browser = await chromium.launch({ headless: false });4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.fill('#tsf > div:nth-child(2) > div > div.RNNXgb > div > div.a4bIc > input', 'Playwright');7  await page.keyboard.press('Enter');8  await page.waitForSelector('text="Playwright - Google Search"');9  await page.click('text="Playwright - Google Search"');10  await page.waitForSelector('text="Playwright"');11  await page.click('text="Playwright"');12  await page.waitForSelector('text="Playwright"');13  await page.click('text="Playwright"');14  await page.waitForSelector('text="Playwright"');15  await page.click('text="Playwright"');16  await page.waitForSelector('text="Playwright"');17  await page.click('text="Playwright"');18  await page.waitForSelector('text="Playwright"');19  await page.click('text="Playwright"');20  await page.waitForSelector('text="Playwright"');21  await page.click('text="Playwright"');22  await page.waitForSelector('text="Playwright"');23  await page.click('text="Playwright"');24  await page.waitForSelector('text="Playwright"');25  await page.click('text="Playwright"');26  await page.waitForSelector('text="Playwright"');27  await page.click('text="Playwright"');28  await browser.close();29})();30* The code is written in a single file, but it can be split into multiple files and then imported in the main file31* The code is written in a single file, but it can be split into multiple files and then imported in the main file32* The code is written in a single file, but it can be split into multiple files and then imported in the main fileUsing AI Code Generation
1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  await page.evaluate(() => {6    window.playwright.discreteUpdates(() => {7    });8  });9  await browser.close();10})();Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  await page.evaluate(() => {6    window.playwrightInternal.discreteUpdates(() => {7    });8  });9  await browser.close();10})();Using AI Code Generation
1const { chromium } = require('playwright');2const { test, expect } = require('@playwright/test');3test('test', async ({ page }) => {4  await page.discreteUpdates(async () => {5    await page.click('text=More information...');6    await page.click('text=Cookie Preferences');7    await page.click('text=Accept all cookies');8  });9  expect(await page.innerText('h1')).toBe('Example Domain');10});Using AI Code Generation
1const { chromium } = require('playwright');2const { createTestServer } = require('./server');3const { createTestClient } = require('./client');4const { createTestClient2 } = require('./client2');5const { createTestClient3 } = require('./client3');6const { createTestClient4 } = require('./client4');7(async () => {8  const server = await createTestServer();9  const port = server.address().port;10  const browser = await chromium.launch({11  });12  const page = await browser.newPage();13  await page.goto(url);14  await page.evaluate(() => {15    window.discreteUpdates(() => {16      const div = document.createElement('div');17      div.textContent = 'Hello World!';18      document.body.appendChild(div);19    });20  });21  await page.waitForTimeout(5000);22  await browser.close();23  await server.close();24})();Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch({ headless: false });4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.waitForTimeout(2000);7  await page.$eval('#iframeResult', (el) => {8    el.contentWindow.discreteUpdates(() => {9      el.contentWindow.document.querySelector('#myImage').addEventListener('click', () => {10        el.contentWindow.document.querySelector('#demo').innerHTML = 'You clicked the image.';11      });12    });13  });14  await page.waitForTimeout(2000);15  await page.$eval('#iframeResult', (el) => {16    el.contentWindow.discreteUpdates(() => {17      el.contentWindow.document.querySelector('#myImage').click();18    });19  });20  await page.waitForTimeout(2000);21  await browser.close();22})();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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