Best JavaScript code snippet using playwright-internal
ReactFiberRoot.old.js
Source:ReactFiberRoot.old.js  
...23import {unstable_getThreadID} from 'scheduler/tracing';24import {initializeUpdateQueue} from './ReactUpdateQueue.old';25import {LegacyRoot, BlockingRoot, ConcurrentRoot} from './ReactRootTags';26// == FiberRootNode æé å½æ°27function FiberRootNode(containerInfo, tag, hydrate) {28  // == Fiber对åºç»ä»¶çç±»å Function/Class/Host...29  this.tag = tag;30  // == rootèç¹ï¼renderæ¹æ³æ¥æ¶ç第äºä¸ªåæ°31  this.containerInfo = containerInfo;32  // == åªæå¨æä¹
æ´æ°ä¸ä¼ç¨å°ï¼ä¹å°±æ¯ä¸æ¯æå¢éæ´æ°çå¹³å°ï¼react-domä¸ä¼ç¨å°33  this.pendingChildren = null;34  // == FiberNode æé å½æ°ï¼æ¯ä¸ª ReactElement 对åºä¸ä¸ª FiberNode35  this.current = null;36  this.pingCache = null;37  // == å·²ç»å®æçä»»å¡ç FiberRootNode 对象, å¦æåªæä¸ä¸ª Root, é£ä»æ°¸è¿åªå¯è½æ¯è¿ä¸ª Root 对åºç FiberRootNode, æè
æ¯ null38  // == å¨ commit é¶æ®µåªä¼å¤çè¿ä¸ªå¼å¯¹åºçä»»å¡39  this.finishedWork = null;40  // == å¨ä»»å¡è¢«æèµ·çæ¶åéè¿ setTimeout 设置çè¿åå
容, ç¨æ¥ä¸ä¸æ¬¡å¦æææ°çä»»å¡æèµ·æ¶æ¸
çè¿æ²¡è§¦åç timeout41  this.timeoutHandle = noTimeout;42  // == é¡¶å± context 对象ï¼åªæä¸»å¨è°ç¨ `renderSubtreeIntoContainer` æ¶æä¼æç¨43  this.context = null;44  this.pendingContext = null;45  // == ç¨æ¥ç¡®å®ç¬¬ä¸æ¬¡æ¸²æçæ¶åæ¯å¦éè¦èå46  this.hydrate = hydrate;47  this.callbackNode = null;48  this.callbackPriority = NoLanePriority;49  // == å½åæ´æ°å¯¹åºçè¿ææ¶é´50  // == NoLanePriority - 0ãNoLanes - 0b0000000000000000000000000000000ãNoTimestamp - -151  this.eventTimes = createLaneMap(NoLanes);52  this.expirationTimes = createLaneMap(NoTimestamp);53  this.pendingLanes = NoLanes;54  this.suspendedLanes = NoLanes;55  this.pingedLanes = NoLanes;56  this.expiredLanes = NoLanes;57  this.mutableReadLanes = NoLanes;58  this.finishedLanes = NoLanes;59  this.entangledLanes = NoLanes;60  this.entanglements = createLaneMap(NoLanes);61  if (supportsHydration) {62    this.mutableSourceEagerHydrationData = null;63  }64  if (enableSchedulerTracing) {65    this.interactionThreadID = unstable_getThreadID();66    this.memoizedInteractions = new Set();67    this.pendingInteractionMap = new Map();68  }69  if (enableSuspenseCallback) {70    this.hydrationCallbacks = null;71  }72  // == æµè¯ç¯å¢73  if (__DEV__) {74    switch (tag) {75      case BlockingRoot:76        this._debugRootType = 'createBlockingRoot()';77        break;78      case ConcurrentRoot:79        this._debugRootType = 'createRoot()';80        break;81      case LegacyRoot:82        this._debugRootType = 'createLegacyRoot()';83        break;84    }85  }86}87// == è¿å FiberRootNode å®ä¾88export function createFiberRoot(89  containerInfo: any,90  tag: RootTag,91  hydrate: boolean,92  hydrationCallbacks: null | SuspenseHydrationCallbacks,93): FiberRoot {94  // == å®ä¾ FiberRootNode: 为容å¨çå®ä¾95  const root: FiberRoot = (new FiberRootNode(containerInfo, tag, hydrate): any);96  if (enableSuspenseCallback) {97    root.hydrationCallbacks = hydrationCallbacks;98  }99  // Cyclic construction. This cheats the type system right now because100  // stateNode is any.101  // == è¿å FiberNode: 为ç»ä»¶çå®ä¾102  // == 1. æ¤å½æ°ç stateNode 屿§ä¼åå¨ FiberRoot å®ä¾103  // == 2. æ¤å½æ°ä¼è¢«æè½½å° FiberRoot ç current 屿§ä¸104  // == tag å³å®äº å建 FiberNode  çæ¨¡å¼: ConcurrentModeãBlockingModeãStrictModeãNoMode105  const uninitializedFiber = createHostRootFiber(tag);106  root.current = uninitializedFiber;107  uninitializedFiber.stateNode = root;108  // == åå§åæ´æ°éå: FiberNode109  // == FiberNode.updateQueue = queue ãå
¶ä¸ queue.baseState = FiberNode.memoizedStateã...ReactFiberRoot.new.js
Source:ReactFiberRoot.new.js  
...29// ----------------------------------------------------------------------------------------------------------- FiberRootNode30// []FiberRootNode31// 132// init mount33// const root: FiberRoot = (new FiberRootNode(containerInfo, tag, hydrate): any);34function FiberRootNode(containerInfo, tag, hydrate) { // container, 0, false35  this.tag = tag;36  this.containerInfo = containerInfo; // container37  this.pendingChildren = null;38  this.current = null;39  // rootFiber.stateNode = fiberRoot40  // fiberRoot.current = rootFiber41  this.pingCache = null;42  this.finishedWork = null;43  this.timeoutHandle = noTimeout;44  this.context = null;45  this.pendingContext = null;46  this.hydrate = hydrate;47  this.callbackNode = null;48  this.callbackPriority = NoLane;49  this.eventTimes = createLaneMap(NoLanes);50  this.expirationTimes = createLaneMap(NoTimestamp);51  this.pendingLanes = NoLanes;52  this.suspendedLanes = NoLanes;53  this.pingedLanes = NoLanes;54  this.expiredLanes = NoLanes;55  this.mutableReadLanes = NoLanes;56  this.finishedLanes = NoLanes;57  this.entangledLanes = NoLanes;58  this.entanglements = createLaneMap(NoLanes);59  if (enableCache) {60    this.pooledCache = null;61    this.pooledCacheLanes = NoLanes;62  }63  if (supportsHydration) {64    this.mutableSourceEagerHydrationData = null;65  }66  if (enableSuspenseCallback) {67    this.hydrationCallbacks = null;68  }69  if (enableProfilerTimer && enableProfilerCommitHooks) {70    this.effectDuration = 0;71    this.passiveEffectDuration = 0;72  }73  if (enableUpdaterTracking) {74    this.memoizedUpdaters = new Set();75    const pendingUpdatersLaneMap = (this.pendingUpdatersLaneMap = []);76    for (let i = 0; i < TotalLanes; i++) {77      pendingUpdatersLaneMap.push(new Set());78    }79  }80  if (__DEV__) {81    switch (tag) {82      case ConcurrentRoot:83        this._debugRootType = 'createRoot()';84        break;85      case LegacyRoot:86        this._debugRootType = 'createLegacyRoot()';87        break;88    }89  }90}91// ----------------------------------------------------------------------------------------------------------- createFiberRoot92// createFiberRoot93// return createFiberRoot(94//   containerInfo,95//   tag,96//   hydrate,97//   hydrationCallbacks,98//   isStrictMode,99//   concurrentUpdatesByDefaultOverride,100// );101export function createFiberRoot(102  containerInfo: any,103  tag: RootTag, // 0104  hydrate: boolean,105  hydrationCallbacks: null | SuspenseHydrationCallbacks,106  isStrictMode: boolean,107  concurrentUpdatesByDefaultOverride: null | boolean, // null108): FiberRoot {109  const root: FiberRoot = (new FiberRootNode(containerInfo, tag, hydrate): any); // ==== fiberRoot110  if (enableSuspenseCallback) { // suspenseç¸å
³111    root.hydrationCallbacks = hydrationCallbacks;112  }113  // Cyclic construction. This cheats the type system right now because114  // stateNode is any.115  // 循ç¯ç»æãè¿ä¼ç«å³æ¬ºéªç±»åç³»ç»ï¼å ä¸ºstateNodeæ¯anyã116  const uninitializedFiber = createHostRootFiber( // =================================== rootFiber117    tag, // 0118    isStrictMode, // false119    concurrentUpdatesByDefaultOverride, // null120  );121  root.current = uninitializedFiber;122  uninitializedFiber.stateNode = root;123  // fiberRoot å rootFiber ä¹é´çç¸äºå¼ç¨...ticTacToeFiberRoot.js
Source:ticTacToeFiberRoot.js  
1container - HTMLDivElement {2  '__reactContainere$3ovmxfu0tzp': FiberNode {3    tag: 3,4    key: null,5    elementType: null,6    type: null,7    stateNode: FiberRootNode {8      tag: 0,9      current: [FiberNode],10      containerInfo: [Circular],11      pendingChildren: null,12      pingCache: null,13      finishedExpirationTime: 0,14      finishedWork: null,15      timeoutHandle: -1,16      context: {},17      pendingContext: null,18      hydrate: false,19      callbackNode: null,20      callbackPriority: 90,21      firstPendingTime: 0,22      firstSuspendedTime: 0,23      lastSuspendedTime: 0,24      nextKnownPendingLevel: 0,25      lastPingedTime: 0,26      lastExpiredTime: 0,27      interactionThreadID: 1,28      memoizedInteractions: Set {},29      pendingInteractionMap: Map {},30      callbackExpirationTime: 031    },32    return: null,33    child: null,34    sibling: null,35    index: 0,36    ref: null,37    pendingProps: null,38    memoizedProps: null,39    updateQueue: {40      baseState: null,41      baseQueue: [Object],42      shared: [Object],43      effects: null44    },45    memoizedState: null,46    dependencies: null,47    mode: 0,48    effectTag: 0,49    nextEffect: null,50    firstEffect: null,51    lastEffect: null,52    expirationTime: 1073741823,53    childExpirationTime: 0,54    alternate: FiberNode {55      tag: 3,56      key: null,57      elementType: null,58      type: null,59      stateNode: [FiberRootNode],60      return: null,61      child: [FiberNode],62      sibling: null,63      index: 0,64      ref: null,65      pendingProps: null,66      memoizedProps: null,67      updateQueue: [Object],68      memoizedState: [Object],69      dependencies: null,70      mode: 0,71      effectTag: 0,72      nextEffect: null,73      firstEffect: [FiberNode],74      lastEffect: [FiberNode],75      expirationTime: 0,76      childExpirationTime: 0,77      alternate: [Circular],78      actualDuration: 0,79      actualStartTime: -1,80      selfBaseDuration: 0,81      treeBaseDuration: 0,82      _debugID: 1,83      _debugIsCurrentlyTiming: false,84      _debugSource: null,85      _debugOwner: null,86      _debugNeedsRemount: false,87      _debugHookTypes: null88    },89    actualDuration: 0,90    actualStartTime: -1,91    selfBaseDuration: 0,92    treeBaseDuration: 0,93    _debugID: 1,94    _debugIsCurrentlyTiming: false,95    _debugSource: null,96    _debugOwner: null,97    _debugNeedsRemount: false,98    _debugHookTypes: null99  },100  _reactRootContainer: ReactDOMBlockingRoot {101    _internalRoot: FiberRootNode {102      tag: 0,103      current: [FiberNode],104      containerInfo: [Circular],105      pendingChildren: null,106      pingCache: null,107      finishedExpirationTime: 0,108      finishedWork: null,109      timeoutHandle: -1,110      context: {},111      pendingContext: null,112      hydrate: false,113      callbackNode: null,114      callbackPriority: 90,115      firstPendingTime: 0,116      firstSuspendedTime: 0,117      lastSuspendedTime: 0,118      nextKnownPendingLevel: 0,119      lastPingedTime: 0,120      lastExpiredTime: 0,121      interactionThreadID: 1,122      memoizedInteractions: Set {},123      pendingInteractionMap: Map {},124      callbackExpirationTime: 0125    }126  }...customRenderer.js
Source:customRenderer.js  
1import ReactReconciler from 'react-reconciler'2const hostConfig = {3  getRootHostContext() {4    return {}5  },6  getChildHostContext() {7    return {}8  },9  prepareForCommit() {10    return true11  },12  resetAfterCommit() {},13  shouldSetTextContent(_, props) {14    return typeof props.children === 'string' || typeof props.children === 'number'15  },16  // å建 DOM èç¹17  createInstance(type, newProps, rootContainerInstance, _currentHostContext, workInProgress) {18    const domElement = document.createElement(type)19    Object.keys(newProps).forEach(propName => {20      const propValue = newProps[propName]21      if (propName === 'children') {22        if (typeof propValue === 'string' || typeof propValue === 'number') {23          domElement.textContent = propValue24        }25      } else if (propName === 'onClick') {26        domElement.addEventListener('click', propValue)27      } else if (propName === 'className') {28        domElement.setAttribute('class', propValue)29      } else {30        domElement.setAttribute(propName, propValue)31      }32    })33    return domElement34  },35  // å建 text èç¹36  createTextInstance(text) {37    return document.createTextNode(text)38  },39  finalizeInitialChildren() {},40  clearContainer() {},41  appendInitialChild(parent, child) {42    parent.appendChild(child)43  },44  appendChild(parent, child) {45    parent.appendChild(child)46  },47  supportsMutation: true,48  appendChildToContainer(parent, child) {49    parent.appendChild(child)50  },51  prepareUpdate(domElement, oldProps, newProps) {52    return true53  },54  commitUpdate(domElement, updatePayload, type, oldProps, newProps) {55    Object.keys(newProps).forEach(propName => {56      const propValue = newProps[propName]57      if (propName === 'children') {58        if (typeof propValue === 'string' || typeof propValue === 'number') {59          domElement.textContent = propValue60        }61      } else {62        const propValue = newProps[propName]63        domElement.setAttribute(propName, propValue)64      }65    })66  },67  commitTextUpdate(textInstance, oldText, newText) {68    textInstance.text = newText69  },70  removeChild(parentInstance, child) {71    parentInstance.removeChild(child)72  },73}74const ReactReconcilerInst = ReactReconciler(hostConfig)75export default {76  render(reactElement, domElement, callback) {77    /**78     * FiberRootNode: {79     *  containerInfo: domElement80     *  context: {}81     *  tag: false82     * }83     */84    const FiberRootNode = ReactReconcilerInst.createContainer(domElement, false)85    const FiberNode = FiberRootNode.current86    console.log(FiberRootNode)87    console.log(FiberNode)88    // update the root Container89    return ReactReconcilerInst.updateContainer(reactElement, FiberRootNode, null, callback)90  },...index.js
Source:index.js  
...31 * @param {*} element32 * @param {*} container dom容å¨33 */34export function render(element, container) {35  const fiberRoot = new FiberRootNode(container, 0)36  const uninitializedFiber = new FiberNode(HostRoot)37  fiberRoot.current = uninitializedFiber38  uninitializedFiber.stateNode = fiberRoot39  initializeUpdateQueue(uninitializedFiber)40  container._reactRootContainer = fiberRoot41  unbatchedUpdates(() => {42    updateContainer(element, fiberRoot)43  })44}45export default {46  render,...ReactFiberRoot.js
Source:ReactFiberRoot.js  
...34    });35  }36}37export const createFiberRoot = (containerInfo, tag, hydrate) => {38  const root = new FiberRootNode(containerInfo, tag, hydrate);39  const uninitializedFiber = createHostRootFiber(tag);40  root.current = uninitializedFiber;41  uninitializedFiber.stateNode = root;42  initializeUpdateQueue(uninitializedFiber);43  return root;...FiberRoot.js
Source:FiberRoot.js  
1import { createHostRootFiber } from "./Fiber"2import { initializeUpdateQueue } from "./UpdateQueue"3function FiberRootNode(containerInfo, tag) {4  this.containerInfo = containerInfo5  this.current = null6}7export function createFiberRoot(containerInfo) {8  const root = new FiberRootNode(containerInfo)9  const uninitializedFiber = createHostRootFiber()10  root.current = uninitializedFiber11  uninitializedFiber.stateNode = root12  initializeUpdateQueue(uninitializedFiber)13  return root...Using AI Code Generation
1const { chromium } = require('playwright');2const { FiberRootNode } = require('playwright/lib/server/fiber');3(async () => {4  const browser = await chromium.launch({ headless: false });5  const context = await browser.newContext();6  const page = await context.newPage();7  const fiber = FiberRootNode.forPage(page);8  const element = await fiber.querySelector('text=Get started');9  await element.click();10  await browser.close();11})();12const { chromium } = require('playwright');13const { Playwright } = require('playwright/lib/server/playwright');14(async () => {15  const browser = await chromium.launch({ headless: false });16  const context = await browser.newContext();17  const page = await context.newPage();18  const playwright = Playwright.forPage(page);19  const element = await playwright.selectors._querySelector('text=Get started');20  await element.click();21  await browser.close();22})();23const { chromium } = require('playwright');24const { Playwright } = require('playwright/lib/server/playwright');25(async () => {26  const browser = await chromium.launch({ headless: false });27  const context = await browser.newContext();28  const page = await context.newPage();29  const playwright = Playwright.forPage(page);30  const element = await playwright.selectors._querySelector('text=Get started');31  await element.click();32  await browser.close();33})();34const { chromium } = require('playwright');35const { Playwright } = require('playwright/lib/server/playwright');36(async () => {37  const browser = await chromium.launch({ headless: false });38  const context = await browser.newContext();39  const page = await context.newPage();40  const playwright = Playwright.forPage(page);41  const element = await playwright.selectors._querySelector('text=Get started');42  await element.click();43  await browser.close();44})();45const { chromium } = requireUsing AI Code Generation
1const { FiberRootNode } = require('@playwright/test/lib/server/fiber');2const { Page } = require('@playwright/test/lib/server/page');3const { ElementHandle } = require('@playwright/test/lib/server/dom');4const { createTestFixtures } = require('@playwright/test');5const { test } = require('@playwright/test');6const { it } = test;7const { page, context } = createTestFixtures();8it('should work', async ({ page }) => {9  const fiberRoot = FiberRootNode.findOrCreateForPage(new Page(page));10  const handle = await page.evaluateHandle(() => document.body);11  const elementHandle = new ElementHandle(fiberRoot, handle);12  await elementHandle.click();13});14import { PlaywrightTestConfig } from '@playwright/test';15const config: PlaywrightTestConfig = {16  use: {17    viewport: { width: 1280, height: 720 },18  },19};20export default config;Using AI Code Generation
1const { FiberRootNode } = require('playwright/lib/server/fiberCall');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const fiber = new FiberRootNode();8  await fiber.call(page, 'screenshot', { path: 'example.png' });9  await browser.close();10})();11const { FiberRootNode } = require('playwright/lib/server/fiberCall');12const { chromium } = require('playwright');13(async () => {14  const browser = await chromium.launch();15  const context = await browser.newContext();16  const page = await context.newPage();17  const fiber = new FiberRootNode();18  await fiber.call(page, 'screenshot', { path: 'example.png' });19  await browser.close();20})();21const { FiberRootNode } = require('playwright/lib/server/fiberCall');22const { chromium } = require('playwright');23(async () => {24  const browser = await chromium.launch();25  const context = await browser.newContext();26  const page = await context.newPage();27  const fiber = new FiberRootNode();28  await fiber.call(page, 'screenshot', { path: 'example.png' });29  await browser.close();30})();31const { FiberRootNode } = require('playwright/lib/server/fiberCall');32const { chromium } = require('playwright');33(async () => {34  const browser = await chromium.launch();35  const context = await browser.newContext();36  const page = await context.newPage();37  const fiber = new FiberRootNode();38  await fiber.call(page, 'screenshot', { path: 'example.png' });39  await browser.close();40})();Using AI Code Generation
1const { FiberRootNode } = require('playwright/lib/server/fiber');2const { Page } = require('playwright/lib/server/page');3const { BrowserContext } = require('playwright/lib/server/browserContext');4const { Browser } = require('playwright/lib/server/browser');5const { Playwright } = require('playwright/lib/server/playwright');6const playwright = new Playwright();7const browser = playwright.chromium.launch();8const context = new BrowserContext(browser, {});9const page = new Page(context, {});10const fiberRootNode = new FiberRootNode(page);11const runInFiberContext = async function() {12  const { page } = this;13  await page.click('input[name="q"]');14  await page.keyboard.type('Hello World');15};16fiberRootNode.run(runInFiberContext);Using AI Code Generation
1const { FiberRootNode } = require('@playwright/test/lib/runner/fiber');2const { test } = require('@playwright/test');3test('test', async ({ page }) => {4  const fiber = FiberRootNode.current();5  fiber._debugInfo = { name: 'test', test: { title: 'test' } };6  await page.waitForSelector('#features');7  await page.screenshot({ path: 'screenshot.png' });8});9{10  "scripts": {11  },12  "devDependencies": {13  }14}15const { FiberRootNode } = require('@playwright/test/lib/runner/fiber');16const { test } = require('@playwright/test');17test('test', async ({ page }) => {18  const fiber = FiberRootNode.current();19  fiber._debugInfo = { name: 'test', test: { title: 'test' } };20  await page.waitForSelector('#features');21  await page.screenshot({ path: 'screenshot.png' });22});23{24  "scripts": {25  },26  "devDependencies": {27  }28}29const { FiberRootNode } = require('@playwright/test/lib/runner/fiber');30const { test } =Using AI Code Generation
1const { Playwright } = require('playwright');2const { FiberRootNode } = require('playwright/lib/server/fiber');3const { test } = require('playwright/lib/test');4const playwright = new Playwright();5const { chromium } = playwright;6const { expect } = require('expect');7(async () => {8  const browser = await chromium.launch({ headless: false });9  const context = await browser.newContext();10  const page = await context.newPage();11  const input = await page.$('input[name="q"]');12  await FiberRootNode.run(async () => {13    await input.type('Type this text');14    await page.keyboard.press('Enter');15    await page.waitForSelector('h3');16    const title = await page.title();17    expect(title).toBe('Type this text - Google Search');18    await browser.close();19  });20})();Using AI Code Generation
1const { FiberRootNode } = require('playwright/lib/server/dom.js');2const { Page } = require('playwright/lib/server/page.js');3async function main() {4  const page = await browser.newPage();5  const fiberRootNode = new FiberRootNode({ page: page });6  fiberRootNode.setHTML('<div>hello</div>');7  const div = page.$('div');8  console.log(await div.innerText());9}10main();Using AI Code Generation
1const { FiberRootNode } = require('playwright/lib/server/fiber');2FiberRootNode.setRootNodeForFiberTree(page);3const { waitForSelector } = require('playwright/lib/server/dom');4const root = FiberRootNode.getRootNodeForFiberTree(page);5await waitForSelector(root, selector, options);6const { waitForSelector } = require('playwright/lib/server/dom');7const root = FiberRootNode.getRootNodeForFiberTree(page);8await waitForSelector(root, selector, options);9const { waitForSelector } = require('playwright/lib/server/dom');10const root = FiberRootNode.getRootNodeForFiberTree(page);11await waitForSelector(root, selector, options);12const { waitForSelector } = require('playwright/lib/server/dom');13const root = FiberRootNode.getRootNodeForFiberTree(page);14await waitForSelector(root, selector, options);15const { waitForSelector } = require('playwright/lib/server/dom');16const root = FiberRootNode.getRootNodeForFiberTree(page);17await waitForSelector(root, selector, options);18const { waitForSelector } = require('playwright/lib/server/dom');19const root = FiberRootNode.getRootNodeForFiberTree(page);20await waitForSelector(root, selector, options);21const { waitForSelector } = require('playwright/lib/server/dom');22const root = FiberRootNode.getRootNodeForFiberTree(page);23await waitForSelector(root, selector, options);24const { waitForSelector } = require('playwright/lib/server/dom');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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