Best JavaScript code snippet using playwright-internal
react-dom.js
Source:react-dom.js  
...9let nextRenderExpirationTime = NoWork; // 表示æ£å¨æ§è¡renderçè¿ç¨ä¸ å¯ä»¥å
许æ§è¡renderçæå¤§æ¶é´ å¨è¿ä¸ªæ¶é´å
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è¿äºå°±ä¸è½ä¸æäº10let isRendering = false; // 表示æ£å¨renderé¶æ®µ ä¹å°±æ¯å建æè
æ´æ°fiberæ é¶æ®µ11// ç¨æ¥è®°å½reactåºç¨æåæ§è¡æ¶é´ä»¥å计ç®12let originalStartTimeMs = performance.now();13let currentRenderTime = msToExpirationTime(originalStartTimeMs);14let currentSchedulerTime = currentRenderTime;15let expirationContext = NoWork;16/**17 * 18 * @param {*} parentComponent ç¶ç»ä»¶19 * @param {*} children 20 * @param {*} container root 容å¨21 * @param {*} forceHydrate æå¡ç«¯æ¸²æ22 * @param {*} callback 23 */24function legacyRenderSubtreeIntoContainer (parentComponent, children, container, forceHydrate, callback ) {25    // _reactRootContainer å°±æ¯ FiberRoot26    let root = container._reactRootContainer; 27    if(!root) {28        let isConcurrent = false; // æ¯å¦å¼æ¥29        root = container._reactRootContainer = new ReactRoot(container, isConcurrent);30        // è¿éæ£æ¥callback 31        // ... å¤çå
è·³è¿32        unbatchedUpdates(function() {33            root.render(children, callback);34        });35    }36}37function unbatchedUpdates(fn, a) {38    return fn(a);39}40function createFiber(tag, pendingProps, key, mode) {41    return new FiberNode(tag, pendingProps, key, mode);42}43class FiberNode {44    // å建ä¸ä¸ªfiberæ°æ®ç»æ45    constructor(tag, pendingProps, key, mode) {46        this.tag = tag;  // 忬¡æ¸²æçæ¶å为 HostRoot=> 347        this.key = key;48        this.elementType = null;49        this.type = null; // 该fiberç±»å50        this.stateNode = null; //该fiberå®ä¾51        // Fiber52        this.return = null; // ç¶fiber53        this.child = null; // 该fiberç第ä¸ä¸ªåfiber54        this.sibling = null; // ç´§é»ç该fiberçå
å¼fiber55        this.index = 0; // 该fiberçindex56        this.ref = null; // ç¨æ¥è·åçå®domç57        this.pendingProps = pendingProps; // 该fiberçæ°å±æ§58        this.memorizedProps = null; // å½åfiberçæ§å±æ§59        this.updateQueue = null; // 该fiberçæ´æ°éå è¿ä¸ªéåä¸ä¼åæ¾çä¸ä¸ªæå¤ä¸ª update60        this.memorizedState = null; // å½åfiberçstate61        this.firstContextDependency = null;62        this.mode = mode;63        // Effects64        this.effectTag = NoEffect; // 表示该fiberçæ´æ°ç±»å ä¸è¬ææ¾ç½®ãæ¿æ¢ãå é¤è¿ä¸ä¸ª65        this.nextEffect = null; // ä¸ä¸ä¸ªeffectçfiber 表示ä¸ä¸ä¸ªæ´æ°66        // è¿ä¸¤ä¸ªå±æ§æ¯ä¸æ¡é¾è¡¨ ä» first æå last67        this.firstEffect = null; // 第ä¸ä¸ª effectç fiber68        this.lastEffect = null; // æåä¸ä¸ªeffectçfiber69        this.expirationTime = NoWork; // å½åfiberçæ´æ°ä¼å
级70        this.childExpirationTime = NoWork; // å½åfiberçåfiberçæ´æ°ä¼å
级71        this.alternate = null; // ç¨æ¥è¿æ¥ä¸ä¸ä¸ªç¶æçå½åfiber72    }73}74/**75 * 计ç®å½åæ¶é´76 */77function requestCurrentTime() {78    if(isRendering) {79        // å·²ç»å¼å§æ¸²æçè¯ é£ä¹è¿åæè¿è®¡ç®åºæ¥çæ¶é´80        return currentSchedulerTime;81    };82    if(nextFlushedExpirationTime === NoWork || nextFlushedExpirationTime === Never) {83        currentSchedulerTime = currentRenderTime = msToExpirationTime(performance.now() - originalStartTimeMs);84    }85    return currentSchedulerTime;86}87function computeExpirationForFiber(currentTime, fiber) {88    let expirationTime = null;89    if(expirationContext !== NoWork) {90        // å½éè¿SyncUpdatesæä»»å¡å¼ºå¶åæä¸ºæé«ä¼å
çº§çæ¶åèµ°è¿é91        expirationTime = expirationContext;92    } else if(isWorking) {93        if(isCommitting) {94            // commit é¶æ®µ95            // å¨æäº¤é¶æ®µä¹å°±æ¯å
¨é¨çfiberé½å·²ç»æå»ºå®æä¹å96            // è¦ææ´æ°ç宿¸²æå°domä¸å» è¿ä¸ªè¿ç¨æ¯ä¸è½ä¸æç97            // æä»¥è¦ç´æ¥è®©ä»åæåæ¥ç...ReactFiberWorkLoop.js
Source:ReactFiberWorkLoop.js  
...39export function requestCurrentTimeForUpdate() {40  if (currentEventTime !== NoWork) {41    return currentEventTime;42  }43  currentEventTime = msToExpirationTime(Scheduler.now());44  return currentEventTime;45}46export function getCurrentTime() {47  return msToExpirationTime(Scheduler.now());48}49export function computeExpirationForFiber(currentTime, fiber) {50}51export function scheduleUpdateOnFiber(fiber, expirationTime) {52  const root = markUpdateTimeFromFiberToRoot(fiber, expirationTime);53  prepareFreshStack(root, expirationTime);54  performSyncWorkOnRoot(root);55}56function prepareFreshStack(root, expirationTime) {57  root.finishedWork = null;58  if (workInProgress !== null) {59  }60  workInProgress = createWorkInProgress(root.current, null);61}...ReactFiberExpirationTime.js
Source:ReactFiberExpirationTime.js  
...25//  expirationTimeåjsçæ¶é´æ³å¹¶ä¸æ¯ä¸ä¸ªä¸è¥¿ï¼26// expirationTimeç¸å½äºä¸ä¸ªè¡¨ç¤ºä¼å
级çä¸è¥¿ï¼expirationTimeè¶å¤§ä¼å
级è¶é«ï¼27// è对åºmsåºè¯¥è¶å°ä¼å
级è¶é«ï¼è¿ä¸ªååæè§èµ·çæç¹é®é¢28// 1 unit of expiration time represents 10ms.29export function msToExpirationTime(ms: number): ExpirationTime {30  // Always add an offset so that we don't clash with the magic number for NoWork.31  // 5000 - 2500 = 250032  // 1073741822 - 250 = 107374157233  return MAGIC_NUMBER_OFFSET - ((ms / UNIT_SIZE) | 0);34}35export function expirationTimeToMs(expirationTime: ExpirationTime): number {36  return (MAGIC_NUMBER_OFFSET - expirationTime) * UNIT_SIZE;37}38function ceiling(num: number, precision: number): number {39  return (((num / precision) | 0) + 1) * precision;40}41function computeExpirationBucket(42  currentTime,43  expirationInMs,44  bucketSizeMs,45): ExpirationTime {46  // currentTime ä¸è¬æ¯éè¿ performance.now() - ç¨åºä¸å¼å§è¿æ¥å°±æ§è¡ä¸æ¬¡ç performance.now() ç¶ååéè¿ msToExpirationTime ç®åºæ¥ç47  // 1073741823 毫ç§ï¼ä¹å°±æ¯åæ¥ï¼æ¢ç®æå¤©æ¯ 12 天å¤ç¹ 1073741824048  // å¦å¤ | 0 + 1 * bucketSizeMs / UNIT_SIZE æ¯ä¸ºäºæ¹å¹³ä¸æ®µæ¶é´å
(bucketSizeMs / UNIT_SIZE(low:25/high:10))çæ¶é´å·®49  return (50    MAGIC_NUMBER_OFFSET -51    ceiling(52      MAGIC_NUMBER_OFFSET - currentTime + expirationInMs / UNIT_SIZE,53      bucketSizeMs / UNIT_SIZE,54    )55  );56}57// TODO: This corresponds to Scheduler's NormalPriority, not LowPriority. Update58// the names to reflect.59export const LOW_PRIORITY_EXPIRATION = 5000;60export const LOW_PRIORITY_BATCH_SIZE = 250;61export function computeAsyncExpiration(62  currentTime: ExpirationTime,63): ExpirationTime {64  return computeExpirationBucket(65    currentTime,66    LOW_PRIORITY_EXPIRATION,67    LOW_PRIORITY_BATCH_SIZE,68  );69}70// We intentionally set a higher expiration time for interactive updates in71// dev than in production.72//73// If the main thread is being blocked so long that you hit the expiration,74// it's a problem that could be solved with better scheduling.75//76// People will be more likely to notice this and fix it with the long77// expiration time in development.78//79// In production we opt for better UX at the risk of masking scheduling80// problems, by expiring fast.81export const HIGH_PRIORITY_EXPIRATION = __DEV__ ? 500 : 150;82export const HIGH_PRIORITY_BATCH_SIZE = 100;83export function computeInteractiveExpiration(currentTime: ExpirationTime) {84  // currentTime = 107374157285  // 250 * 10 = ç»è¿çæ¶é´86  // 250 + 50 = 30087  // 1073741822 - ((((1073741822 - 1073741572 + 15) / 10) | 0) + 1) * 1088  return computeExpirationBucket(89    currentTime,90    HIGH_PRIORITY_EXPIRATION,91    HIGH_PRIORITY_BATCH_SIZE,92  );93}94export function inferPriorityFromExpirationTime(95  currentTime: ExpirationTime,96  expirationTime: ExpirationTime,97): ReactPriorityLevel {98  if (expirationTime === Sync) {99    return ImmediatePriority;100  }101  if (expirationTime === Never) {102    return IdlePriority;103  }104  const msUntil =105    msToExpirationTime(expirationTime) - msToExpirationTime(currentTime);106  if (msUntil <= 0) {107    return ImmediatePriority;108  }109  if (msUntil <= HIGH_PRIORITY_EXPIRATION) {110    return UserBlockingPriority;111  }112  if (msUntil <= LOW_PRIORITY_EXPIRATION) {113    return NormalPriority;114  }115  // TODO: Handle LowPriority116  // Assume anything lower has idle priority117  return IdlePriority;...expiration-time-test.js
Source:expiration-time-test.js  
...31  return performance.now();32}33let initialTimeMs: number = Scheduler_now();34// 1 unit of expiration time represents 10ms.35function msToExpirationTime(ms: number): ExpirationTime {36  // Always add an offset so that we don't clash with the magic number for NoWork.37  return MAGIC_NUMBER_OFFSET - ((ms / UNIT_SIZE) | 0);38}39const now =40  initialTimeMs < 10000 ? Scheduler_now : () => Scheduler_now() - initialTimeMs;41export function requestCurrentTime() {42  return msToExpirationTime(performance.now());43}44function ceiling(num: number, precision: number): number {45  return (((num / precision) | 0) + 1) * precision;46}47function computeExpirationBucket(48  currentTime,49  expirationInMs,50  bucketSizeMs51): ExpirationTime {52  return (53    MAGIC_NUMBER_OFFSET -54    ceiling(55      MAGIC_NUMBER_OFFSET - currentTime + expirationInMs / UNIT_SIZE,56      bucketSizeMs / UNIT_SIZE...dangerfile.js
Source:dangerfile.js  
...3const Never = Math.pow(2, 30) - 1;4const UNIT_SIZE = 10;5const MAGIC_NUMBER_OFFSET = 2;6// 计ç®å½åæ¶é´ now/10 + 2 以10为åä½å¹¶å¢å ä¸ä¸ªåç§»é7function msToExpirationTime(ms){8    return ((ms / UNIT_SIZE) | 0) + MAGIC_NUMBER_OFFSET;9}10// è¿åæ¶é´å¯¹åºçæ¶é´æ³ åå计ç®11function expirationTimeToMs(expirationTime){12    return (expirationTime - MAGIC_NUMBER_OFFSET) * UNIT_SIZE;13}14// [(now+150)/100 + 1] * (100/10) = (now + 150)/10 + 1015function ceiling(num, precision){// (now + 150)/10    100/1016    return (((num / precision) | 0) + 1) * precision;17}18function computeExpirationBucket(19    currentTime,20    expirationInMs,//15021    bucketSizeMs,//10022  ){23    return (24      MAGIC_NUMBER_OFFSET +25      ceiling(26        currentTime - MAGIC_NUMBER_OFFSET + expirationInMs / UNIT_SIZE,// (now/10 + 2) - 2 + 150/10   (now + 150)/1027        bucketSizeMs / UNIT_SIZE,// 100/1028      )29    );30}31//计ç®å¼æ¥ä»»å¡è¿ææ¶é´32function computeAsyncExpiration(currentTime){33    return computeExpirationBucket(34      currentTime,35      5000,//LOW_PRIORITY_EXPIRATION36      250,//LOW_PRIORITY_BATCH_SIZE37    );38}39//计ç®äº¤äºä»»å¡è¿ææ¶é´  100ms以å
çé½å¿½ç¥æç
§ä»¥10为åä½çä¸éç® å¹¶å¢å 150msçåç§»é40function computeInteractiveExpiration(currentTime){ //å½åæ¶é´æ³ åç§»150å/10 + 1041    return computeExpirationBucket(42        currentTime,43        150,//HIGH_PRIORITY_EXPIRATION44        100,//HIGH_PRIORITY_BATCH_SIZE45    );46}47//[(now+150)/100 + 1] * (100/10) 48console.log(computeInteractiveExpiration(msToExpirationTime(1350)))//  16249console.log(computeInteractiveExpiration(msToExpirationTime(1350 + 99)))// 162...ReactFiberScheduler.js
Source:ReactFiberScheduler.js  
...11  const {12    now,13  } = config;14  const originalStartTimeMs = now();15  let mostRecentCurrentTime: ExpirationTime = msToExpirationTime(0);16  let mostRecentCurrentTimeMs: ExpirationTime = originalStartTimeMs;17  let lastUniqueAsyncExpiration: number = 0;18  function unbatchedUpdates<A, R>(fn: (a: A) => R, a: A): R {19    if (isBatchingUpdates && !isUnbatchingUpdates) {20      isUnbatchingUpdates = true;21      try {22        return fn(a);23      } finally {24        isUnbatchingUpdates = false;25      }26    }27    return fn(a);28  }29  function recalculateCurrentTime(): ExpirationTime {30    mostRecentCurrentTimeMs = now() - originalStartTimeMs;31    mostRecentCurrentTime = msToExpirationTime(mostRecentCurrentTimeMs);32    return mostRecentCurrentTime;33  }34  function computeUniqueAsyncExpiration(): ExpirationTime {35    const currentTime = recalculateCurrentTime();36    let result = computeAsyncExpiration(currentTime);37    if (result <= lastUniqueAsyncExpiration) {38      result = lastUniqueAsyncExpiration + 1;39    }40    lastUniqueAsyncExpiration = result;41    return lastUniqueAsyncExpiration;42  }43  function flushRoot(root: FiberRoot, expirationTime: ExpirationTime) {44    performWorkOnRoot(root, expirationTime, false);45    finishRendering();...fiberScheduler.js
Source:fiberScheduler.js  
...17        // We're inside React, so it's fine to read the actual time.18        // 1000 * 60 = 6000019        // 1000 * 60 * 60 = 360000020        // 1000 * 60 * 60 * 24 = 8640000021		return msToExpirationTime(now() - initialTimeMs);22	}23	// We're not inside React, so we may be in the middle of a browser event.24	if (currentEventTime !== NoWork) {25		// Use the same start time for all updates until we enter React again.26		return currentEventTime;27	}28	// This is the first update since React yielded. Compute a new start time.29	currentEventTime = msToExpirationTime(now() - initialTimeMs);30	return currentEventTime;31}32export function computeExpirationForFiber(currentTime, fiber) {33    if (workPhase === RenderPhase) {34        return renderExpirationTime35    }36    let expirationTime;37    // çç¥å
¶ä»ä»£ç 38    expirationTime = computeAsyncExpiration(currentTime);39    if (workInProgressRoot !== null && expirationTime === renderExpirationTime) {40        expirationTime -= 141    }42    return expirationTime43}expirationTime.js
Source:expirationTime.js  
1const MAX_SIGNED_31_BIT_INT = 1073741823;2const UNIT_SIZE = 10;3const MAGIC_NUMBER_OFFSET = MAX_SIGNED_31_BIT_INT - 2;4let now = Date.now()5const currentTime = msToExpirationTime(now);6function msToExpirationTime(ms) {7    return MAGIC_NUMBER_OFFSET - ((ms / UNIT_SIZE) | 0);8}9function computeExpirationBucket(10    currentTime,11    expirationInMs,12    bucketSizeMs,13){14    return (15        MAGIC_NUMBER_OFFSET -16        ceiling(17            MAGIC_NUMBER_OFFSET - currentTime + expirationInMs / UNIT_SIZE,18            bucketSizeMs / UNIT_SIZE,19        )20    );...Using AI Code Generation
1const {msToExpirationTime} = require('playwright/lib/utils/utils');2const {chromium} = require('playwright');3const browser = await chromium.launch();4const context = await browser.newContext({5  storageState: {6    cookies: [{7      expires: msToExpirationTime(Date.now() + 10000),8    }]9  }10});11const page = await context.newPage();12await page.waitForTimeout(10000);13await page.reload();14await page.screenshot({ path: 'example.png' });15await browser.close();16#### storageState.constructor([options])17#### storageState.cookies([options])18#### storageState.origins()19### browserContext.storageState([options])Using AI Code Generation
1const { msToExpirationTime } = require('playwright/lib/utils/utils');2const expirationTime = msToExpirationTime(1000);3const { msToExpirationTime } = require('playwright/lib/utils/utils');4const expirationTime = msToExpirationTime(1000);5import { msToExpirationTime } from 'playwright/lib/utils/utils';6const expirationTime = msToExpirationTime(1000);7import { msToExpirationTime } from 'playwright/lib/utils/utils';8const expirationTime = msToExpirationTime(1000);9const { msToExpirationTime } = require('playwright/lib/utils/utils');10const expirationTime = msToExpirationTime(1000);11const { msToExpirationTime } = require('playwright/lib/utils/utils');12const expirationTime = msToExpirationTime(1000);13import { msToExpirationTime } from 'playwright/lib/utils/utils';14const expirationTime = msToExpirationTime(1000);15import { msToExpirationTime } from 'playwright/lib/utils/utils';16const expirationTime = msToExpirationTime(1000);17const { msToExpirationTime } = require('playwright/lib/utils/utils');18const expirationTime = msToExpirationTime(1000);19const { msToExpirationTime } = require('playwright/lib/utils/utils');20const expirationTime = msToExpirationTime(1000);21import { msToExpirationTime } from 'playwright/lib/utils/utils';Using AI Code Generation
1const { msToExpirationTime } = require('playwright/lib/utils/utils');2console.log(msToExpirationTime(1000));3const { msToExpirationTime } = require('playwright/lib/utils/utils');4console.log(msToExpirationTime(1000));5const { msToExpirationTime } = require('playwright/lib/utils/utils');6console.log(msToExpirationTime(1000));7const { msToExpirationTime } = require('playwright/lib/utils/utils');8console.log(msToExpirationTime(1000));9const { msToExpirationTime } = require('playwright/lib/utils/utils');10console.log(msToExpirationTime(1000));11const { msToExpirationTime } = require('playwright/lib/utils/utils');12console.log(msToExpirationTime(1000));13const { msToExpirationTime } = require('playwright/lib/utils/utils');14console.log(msToExpirationTime(1000));15const { msToExpirationTime } = require('playwright/lib/utils/utils');16console.log(msToExpirationTime(1000));17const { msToExpirationTime } = require('playwright/lib/utils/utils');18console.log(msToExpirationTime(1000));19const { msToExpirationTime } = require('playUsing AI Code Generation
1const { msToExpirationTime } = require('playwright/lib/utils/utils');2const ms = 1000;3console.log(msToExpirationTime(ms));4const { msToExpirationTime } = require('playwright/lib/utils/utils');5const ms = 1000;6console.log(msToExpirationTime(ms));Using AI Code Generation
1const { msToExpirationTime } = require('playwright/lib/utils/utils');2const { chromium } = require('playwright');3const context = await chromium.launchPersistentContext('/tmp/myprofile');4await context.addCookies([5  {6  },7]);8const { msToExpirationTime } = require('playwright/lib/utils/utils');9const { chromium } = require('playwright');10const context = await chromium.launchPersistentContext('/tmp/myprofile');11await context.addCookies([12  {13  },14]);Using AI Code Generation
1const { msToExpirationTime } = require('playwright/lib/utils/utils');2console.log(msToExpirationTime(1000));3const browser = await chromium.launch({ headless: false });4const context = await browser.newContext();5    route.fulfill({6        body: JSON.stringify({ test: 'test' })7    });8});9const page = await context.newPage();10const browser = await chromium.launch({ headless: false });11const context = await browser.newContext();12const page = await context.newPage();13    route.fulfill({14        body: JSON.stringify({ test: 'test' })15    });16});17const browser = await chromium.launch({ headless: false });18const context = await browser.newContext();19const page = await context.newPage();20    route.fulfill({21        body: JSON.stringify({ test: 'test' })22    });23});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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