Best JavaScript code snippet using playwright-internal
reconcile.js
Source:reconcile.js  
...20export const Deletion = /*                 */ 0b00000000001000;21let workInProgress = null; // å½åå·²å建çworkInProgress fiber22let workInProgressRoot = null;23export function scheduleUpdateOnFiber(fiber) {24  const root = markUpdateLaneFromFiberToRoot(fiber);25  performWorkOnRoot(root);26}27function performWorkOnRoot(root) {28  if (root !== workInProgressRoot) {29    root.finishedWork = null;30    workInProgressRoot = root;31    workInProgress = createWorkInProgress(root.current, null);32  }33  workLoop();34  commitRoot(root);35}36// ä»fiberå°root37function markUpdateLaneFromFiberToRoot(fiber) {38  // Walk the parent path to the root and update the child expiration time.39  let node = fiber.return;40  let root = null;41  if (node === null && fiber.tag === HostRoot) {42    // æ¯æ ¹èç¹äº43    root = fiber.stateNode;44  } else {45    // å䏿¾å°FiberRootNode46    while (node !== null) {47      if (node.return === null && node.tag === HostRoot) {48        root = node.stateNode;49        break;50      }51      node = node.return;...ReactFiberWorkLoop.dev.js
Source:ReactFiberWorkLoop.dev.js  
...17 * 18 * @param {*} fiber 19 */20function scheduleUpdateOnFiber(fiber) {21  var fiberRoot = markUpdateLaneFromFiberToRoot(fiber);22  performSyncWorkOnRoot(fiberRoot);23}24/**25 * æ ¹æ®èçfiberæ åæ´æ°å¯¹è±¡å建æ°çfiberæ ï¼ç¶åæ ¹æ®æ°çfiberæ æ´æ°çå®DOM26 * @param {*} fiberRoot 27 */28function performSyncWorkOnRoot(fiberRoot) {29  workInProgressRoot = fiberRoot;30  workInProgress = (0, _ReactFiber.createWorkInProgress)(workInProgressRoot.current);31  workLoopSync(); //æ§è¡å·¥ä½å¾ªç¯ï¼æå»ºå¯ä½ç¨é¾32  commitRoot(); //æäº¤ï¼ä¿®æ¹DOM33}34function commitRoot() {35  //æåæ°æå»ºçfiberæ 36  var finishedWork = workInProgressRoot.current.alternate;37  workInProgressRoot.finishedWork = finishedWork;38  commitMutationEffects(workInProgressRoot);39}40function getFlags(flags) {41  switch (flags) {42    case _ReactFiberFlags.Placement:43      return 'æå
¥';44    default:45      break;46  }47}48function commitMutationEffects(root) {49  var finishedWork = root.finishedWork;50  var nextEffect = finishedWork.firstEffect;51  var effectsList = '';52  while (nextEffect) {53    effectsList += "(".concat(getFlags(nextEffect.flags), "#").concat(nextEffect.type, "#").concat(nextEffect.key, ")");54    var flags = nextEffect.flags;55    if (flags === _ReactFiberFlags.Placement) {56      commitPlacement(nextEffect);57    }58    nextEffect = nextEffect.nextEffect;59  }60  effectsList += 'null'; //æ¤å¤ä¼æå°ä»ä¹ä¸è¥¿ï¼effectlisté¿ä»ä¹æ ·å61  console.log(effectsList);62  root.current = finishedWork;63}64function getParentStateNode(fiber) {65  var parent = fiber["return"];66  do {67    if (parent.tag === _ReactWorkTags.HostComponent) {68      return parent.stateNode;69    } else if (parent.tag === _ReactWorkTags.HostRoot) {70      return parent.stateNode.containerInfo;71    } else {72      //彿°ç»ä»¶æç±»ç»ä»¶73      parent = (_readOnlyError("parent"), parent["return"]);74    }75  } while (parent);76}77function commitPlacement(nextEffect) {78  var stateNode = nextEffect.stateNode;79  var parentStateNode = getParentStateNode(nextEffect);80  parentStateNode.appendChild(stateNode);81}82/**83 * å¼å§èªä¸èä¸æå»ºæ°çfiberæ 84 */85function workLoopSync() {86  while (workInProgress) {87    performUnitOfWork(workInProgress);88  }89}90/**91 * æ§è¡å个工ä½åå
92 * workInProgress è¦å¤ççfiber93 */94function performUnitOfWork(unitOfWork) {95  //è·åå½åæ£å¨æå»ºçfiberçæ¿èº«96  var current = unitOfWork.alternate; //å¼å§æå»ºå½åfiberçåfiberé¾è¡¨97  //å®ä¼è¿åä¸ä¸ä¸ªè¦å¤ççfiber,ä¸è¬é½æ¯unitOfWorkç大å¿å98  //div#titleè¿ä¸ªfiber å®çè¿å弿¯ä¸ä¸ªnull99  var next = (0, _ReactFiberBeginWork.beginWork)(current, unitOfWork); //å¨beginWorkåï¼éè¦ææ°å±æ§åæ¥å°è屿§ä¸100  //div id =1 memoizedProps={id:2}   pendingProps ={id:2}101  unitOfWork.memoizedProps = unitOfWork.pendingProps; //å½åçfiberè¿æåèç¹102  if (next) {103    workInProgress = next;104  } else {105    //妿å½åfiber没æåfiber,é£ä¹å½åçfiberå°±ç®å®æ106    completeUnitOfWork(unitOfWork);107  }108}109/**110 * 宿ä¸ä¸ªfiberèç¹111 * @param {*} unitOfWork 112 */113function completeUnitOfWork(unitOfWork) {114  var completedWork = unitOfWork;115  do {116    var current = completedWork.alternate;117    var returnFiber = completedWork["return"]; //宿æ¤fiber对åºççå®DOMèç¹å建å屿§èµå¼çåè½118    (0, _ReactFiberCompleteWork.completeWork)(current, completedWork); //æ¶éå½åfiberçå¯ä½ç¨å°ç¶fiberä¸119    collectEffectList(returnFiber, completedWork); //å½èªå·±è¿ä¸ªfiber宿åï¼å¦ä½å¯»æ¾ä¸ä¸ä¸ªè¦æå»ºçfiber120    var siblingFiber = completedWork.sibling;121    if (siblingFiber) {122      //妿æå¼å¼ï¼å°±å¼å§æå»ºå¼å¼ï¼å¤çå¼å¼ beginWork123      workInProgress = siblingFiber;124      return;125    } //å¦ææ²¡æå¼å¼ï¼è¯´æè¿æ¯æåä¸ä¸ªå¿åäºï¼ç¶äº²ä¹å¯ä»¥å®æäº126    //è¿ä¸ªå¾ªç¯å°æåçæ¶å returnFiberå°±æ¯null,ä¹å°±æ¯æ ¹fiberçç¶äº² 127    completedWork = returnFiber; //ä¸åçä¿®æ¹å½åæ£å¨å¤ççfiberæå workInProgress=nullå°±å¯ä»¥éåºworkLoopäº128    workInProgress = completedWork;129  } while (workInProgress);130}131function collectEffectList(returnFiber, completedWork) {132  if (returnFiber) {133    //妿ç¶äº² 没æeffectList,é£å°±è®©ç¶äº² çfirstEffecté¾è¡¨å¤´æåèªå·±ç头134    if (!returnFiber.firstEffect) {135      returnFiber.firstEffect = completedWork.firstEffect;136    } //妿èªå·±æé¾è¡¨å°¾137    if (completedWork.lastEffect) {138      //å¹¶ä¸ç¶äº²ä¹æé¾è¡¨å°¾139      if (returnFiber.lastEffect) {140        //æèªå·±èº«ä¸çeffectlistææ¥å°ç¶äº²çé¾è¡¨å°¾é¨141        returnFiber.lastEffect.nextEffect = completedWork.firstEffect;142      }143      returnFiber.lastEffect = completedWork.lastEffect;144    }145    var flags = completedWork.flags; //妿æ¤å®æçfiberæå¯ä½¿ç¨ï¼é£ä¹å°±éè¦æ·»å å°effectListé146    if (flags) {147      //妿ç¶fiberælastEffectçè¯ï¼è¯´æç¶fiberå·²ç»æeffecté¾è¡¨148      if (returnFiber.lastEffect) {149        returnFiber.lastEffect.nextEffect = completedWork;150      } else {151        returnFiber.firstEffect = completedWork;152      }153      returnFiber.lastEffect = completedWork;154    }155  }156}157function markUpdateLaneFromFiberToRoot(sourceFiber) {158  var node = sourceFiber;159  var parent = node["return"];160  while (parent) {161    node = parent;162    parent = parent["return"];163  } //nodeå
¶å®è¯å®fiberæ çæ ¹èç¹ï¼å
¶å®å°±æ¯ hostRootFiber .stateNode div#root164  return node.stateNode;...ReactWorkLoop.js
Source:ReactWorkLoop.js  
...8//å½åæ£å¨æ´æ°fiberèç¹9let workInProgress = null;1011export function scheduleUpdateOnFiber(fiber) {12  const fiberRoot = markUpdateLaneFromFiberToRoot(fiber);13  performSyncWorkOnRoot(fiberRoot);14}1516/**17 * æ¾å°æé¡¶çº§çfiberèç¹ï¼æé¡¶çº§çfiberèç¹æ²¡æparentæé18 */19function markUpdateLaneFromFiberToRoot(sourceFiber) {20  let node = sourceFiber;21  let parent = node.return;22  while (parent) {23    node = parent;24    parent = node.parent;25  }26  return node.stateNode;27}2829function performSyncWorkOnRoot(fiberRoot) {30  workInProgressRoot = fiberRoot;31  workInProgress = createWorkInProgress(workInProgressRoot.current);3233  workLoopSync(); // æ§è¡å·¥ä½å¾ªç¯
...scheduleUpdateOnFiber.js
Source:scheduleUpdateOnFiber.js  
...16function scheduleUpdateOnFiber(fiber, lane, eventTime) {17  //checkForNestedUpdates();18  //warnAboutRenderPhaseUpdatesInDEV(fiber);19  // å䏿¾å°è·èç¹ root20  var root = markUpdateLaneFromFiberToRoot(fiber, lane);21  ensureRootIsScheduled(root, eventTime);22  // 妿å½åçæ§è¡ä¸ä¸æç¯å¢æ¯NoContextï¼éæ¹éï¼å¹¶ä¸Mode䏿¯å¹¶åçè¯23  if (executionContext === NoContext && (fiber.mode & ConcurrentMode) === NoMode) {24    flushSyncCallbackQueue();25  }26}27// ä»å½åfiberèç¹ï¼é彿¾å°root28function markUpdateLaneFromFiberToRoot(fiber) {29  let parent = fiber.return;30  while(parent) {31    fiber = parent;32    parent = fiber.return;33    if (fiber.tag == HostRoot) {34      return parent;35    }36  }37  return null;38}39/**40 * 41 * @param {*} root 42 * @param {*} eventTime ...legacy.js
Source:legacy.js  
...109}110//******************  å¼å§è°åº¦ scheduleUpdateOnFiber *******************/111function scheduleUpdateOnFiber(fiber, lane, eventTime) {112  // æ è®°ä»Fiberå°æ ¹çæ´æ°éé113  const root = markUpdateLaneFromFiberToRoot(fiber, lane);114  // æ è®°æ ¹æä¸ä¸ªæèµ·çæ´æ°115  markRootUpdated(root, lane, eventTime);116  // 忥Lane legacyæ´æ°æ¨¡å¼117  if(lane === SyncLane) {118    // renderé¶æ®µ èµ·ç¹119    performSyncWorkOnRoot(root)120  }else {121    // concurrent Mode 122    ensureRootIsScheduled(root, eventTime);123  }...issues.js
Source:issues.js  
...60      "Distribute source maps for easier debugging in Chrome's Performance tab",61    status: 'closed'62  },63  {64    title: 'An improvement on fast return in markUpdateLaneFromFiberToRoot()',65    status: 'closed'66  },67  {68    title:69      'React Developer Tools triggers console error in Firefox for protected URLs',70    status: 'closed'71  },72  {73    title: 'Bug: Should have a queue',74    status: 'closed'75  },76  {77    title: 'feature: Move react-is to react/is',78    status: 'closed'...状态更新调用路径.js
Source:状态更新调用路径.js  
1/*2 *3触åç¶ææ´æ°ï¼æ ¹æ®åºæ¯è°ç¨ä¸åæ¹æ³ï¼4            1.ReactDOM.render5            2.this.setState6            3.this.forceUpdate7            4.useState8            5.useReducer9    |10    |11    v12å建Update对象ï¼'updateContainer'ï¼13    |14    |15    v16ä»fiberå°rootï¼`markUpdateLaneFromFiberToRoot`ï¼17            ï¼ä»è§¦åç¶ææ´æ°çfiberä¸ç´åä¸éåå°rootFiberï¼å¹¶è¿årootFiberãï¼18    |19    |20    v21è°åº¦æ´æ°ï¼`ensureRootIsScheduled`ï¼ åæ¥/弿¥22                以䏿¯ensureRootIsScheduledææ ¸å¿ç䏿®µä»£ç ï¼23                if (newCallbackPriority === SyncLanePriority) {24                    // ä»»å¡å·²ç»è¿æï¼éè¦åæ¥æ§è¡renderé¶æ®µ25                    newCallbackNode = scheduleSyncCallback(26                        performSyncWorkOnRoot.bind(null, root)27                    );28                    } else {29                    // æ ¹æ®ä»»å¡ä¼å
çº§å¼æ¥æ§è¡renderé¶æ®µ30                    var schedulerPriorityLevel = lanePriorityToSchedulerPriority(31                        newCallbackPriority32                    );33                    newCallbackNode = scheduleCallback(34                        schedulerPriorityLevel,35                        performConcurrentWorkOnRoot.bind(null, root)36                    );37                }38    |39    |40    v41renderé¶æ®µï¼`performSyncWorkOnRoot` æ `performConcurrentWorkOnRoot`ï¼42    |43    |44    v45commité¶æ®µï¼`commitRoot`ï¼...ReactFiberWorkLoop.js
Source:ReactFiberWorkLoop.js  
...8 * 9 * @param {*} fiber 10 */11export function scheduleUpdateOnFiber(fiber) {12    const fiberRoot = markUpdateLaneFromFiberToRoot(fiber);13    performSyncWorkOnRoot(fiberRoot);14}15/**16 * æ ¹æ®èçfiberæ åæ´æ°å¯¹è±¡å建æ°çfiberæ ï¼ç¶åæ ¹æ®æ°çfiberæ æ´æ°çå®DOM17 * @param {*} fiberRoot 18 */19function performSyncWorkOnRoot(fiberRoot) {20    workInProgressRoot = fiberRoot;21    workInProgress = createWorkInProgress(workInProgressRoot.current);22    console.log(workInProgress);23}24function markUpdateLaneFromFiberToRoot(sourceFiber) {25    let node = sourceFiber;26    let parent = node.return;27    while (parent) {28        node = parent;29        parent = parent.parent;30    }31    //nodeå
¶å®è¯å®fiberæ çæ ¹èç¹ï¼å
¶å®å°±æ¯ hostRootFiber .stateNode div#root32    return node.stateNode;...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  const internalAPI = page._delegate;7  const markUpdateLaneFromFiberToRoot = internalAPI.markUpdateLaneFromFiberToRoot;8  const fiber = await internalAPI.getFiberForElementHandle(page.mainFrame().querySelector('a'));9  markUpdateLaneFromFiberToRoot(fiber, 1);10  await page.waitForTimeout(10000);11  await browser.close();12})();Using AI Code Generation
1const playwright = require('playwright');2(async () => {3  const browser = await playwright.chromium.launch({ headless: false });4  const context = await browser.newContext();5  const page = await context.newPage();6  const internal = require('playwright/lib/server/playwright.js').internal;7  const root = internal.getRoot(page);8  const fiber = internal.getFiber(page);9  internal.markUpdateLaneFromFiberToRoot(fiber, 1);10  await page.screenshot({ path: `example.png` });11  await browser.close();12})();Using AI Code Generation
1const { chromium } = require('playwright');2const { markUpdateLaneFromFiberToRoot } = require('playwright/lib/server/supplements/recorder/recorderSupplement');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  await page.click('text="I agree"');8  await page.click('input[aria-label="Search"]');9  await page.fill('input[aria-label="Search"]', 'playwright');10  await page.keyboard.press('Enter');11  await page.click('text="Playwright"');12  await page.click('text="Docs"');13  await page.click('text="API"');14  await page.click('text="Page"');15  await page.click('text="page.click"');16  markUpdateLaneFromFiberToRoot(page, 0);17  await page.click('text="Examples"');18  await page.click('textUsing AI Code Generation
1const { chromium } = require('playwright');2const { markUpdateLaneFromFiberToRoot } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  await page.click('input[name="q"]');8  await page.fill('input[name="q"]', 'Hello World');9  await page.press('input[name="q"]', 'Enter');10  const fiberId = await page.evaluate(() => {11    const input = document.querySelector('input[name="q"]');12    return input._reactRootContainer._internalRoot.current.fiberID;13  });14  await markUpdateLaneFromFiberToRoot(page, fiberId);15  await page.screenshot({ path: 'example.png' });16  await browser.close();17})();18const { updateLane } = require('playwright/lib/server/supplements/recorder/recorderSupplementImpl.js');19module.exports.markUpdateLaneFromFiberToRoot = async function (page, fiberId) {20  return await updateLane(page, fiberId, 1);21};22const { updateLane } = require('playwright/lib/server/supplements/recorder/recorderSupplementImpl.js');23module.exports.updateLane = async function (page, fiberId, lane) {24  return await page.evaluate((fiberId, lane) => {25    const fiber = window.__REACT_DEVTOOLS_GLOBAL_HOOK__._fiberRoots[0].current.child;26    if (!fiber) {27      return 'No Fiber Found';28    }29    if (fiberId === fiber.fiberID) {30      fiber.lanes |= lane;31      return 'Lane updated';32    }33    while (fiber.sibling) {34      fiber = fiber.sibling;35      if (fiberId === fiber.fiberID) {36        fiber.lanes |= lane;37        return 'Lane updated';38      }39    }40    return 'No Fiber Found';41  }, fiberId, lane);42};Using AI Code Generation
1const playwright = require('playwright');2const { markUpdateLaneFromFiberToRoot } = require('playwright/lib/server/webkit/webkit.js');3(async () => {4  const browser = await playwright.webkit.launch();5  const page = await browser.newPage();6  const element = await page.$('input.searchInput');7  await markUpdateLaneFromFiberToRoot(element, 1);8  await page.screenshot({ path: 'wikipedia.png' });9  await browser.close();10})();11[Apache 2.0](LICENSE)Using AI Code Generation
1const { markUpdateLaneFromFiberToRoot } = require('playwright');2const { chromium } = require('playwright');3const browser = await chromium.launch();4const page = await browser.newPage();5await page.screenshot({ path: `google.png` });6await browser.close();7markUpdateLaneFromFiberToRoot({ lane: 1, fiberID: 1 });8Your name to display (optional):9Your name to display (optional):10const { chromium } = require('playwright');11const { markUpdateLaneFromFiberToRoot } = require('playwright/lib/server/trace/recorder/playwright');12const browser = await chromium.launch();13const page = await browser.newPage();14await page.screenshot({ path: `google.png` });15await browser.close();16markUpdateLaneFromFiberToRoot({ lane: 1, fiberID: 1 });17Your name to display (optional):18const { chromium } = require('playwright');19const { markUpdateLaneFromFiberToRoot } = require('playwright/lib/server/trace/recorder/playwright');20const browser = await chromium.launch();21const page = await browser.newPage();22await page.screenshot({ path: `google.png` });23await browser.close();24markUpdateLaneFromFiberToRoot({ lane: 1, fiberID: 1 });25Your name to display (optional):26const { chromium } = require('playwright');27const { markUpdateLaneFromFiberToRoot } = require('playwright/lib/server/trace/recorder/playwright');Using AI Code Generation
1const { markUpdateLaneFromFiberToRoot } = require('@playwright/test/lib/server/trace/recorder/playwrightInternal.js');2const { playwright } = require('@playwright/test');3const { chromium } = require('playwright');4const { Page } = require('playwright/lib/server/page');5const { Frame } = require('playwright/lib/server/frame');6const { ElementHandle } = require('playwright/lib/server/dom');7const browser = await chromium.launch();8const context = await browser.newContext();9const page = await context.newPage();10const element = await page.$('text=Get started');11const fiber = await element.evaluateHandle(element => element._fiber);12const rootFiber = await page.evaluateHandle(page => page._mainFrame._document._fiber);13await markUpdateLaneFromFiberToRoot(fiber, rootFiber);14const updateLane = await page.evaluate(page => page._mainFrame._document._updateLane);15console.log(updateLane);16await browser.close();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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