Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! 
How to use commitBeforeMutationLifeCycles method in Playwright Internal
Best JavaScript code snippet using playwright-internal
ReactFiberCommitWork.new.js
Source:ReactFiberCommitWork.new.js 
...155 } catch (error) {156 captureCommitPhaseError(current, nearestMountedAncestor, error);157 }158}159function commitBeforeMutationLifeCycles(160 current: Fiber | null,161 finishedWork: Fiber,162): void {163 enableLog && console.log('commitBeforeMutationLifeCycles start')164 if (!__LOG_NAMES__.length || __LOG_NAMES__.includes('commitBeforeMutationLifeCycles')) debugger165 switch (finishedWork.tag) {166 case FunctionComponent: // 0167 case ForwardRef: // 11168 case SimpleMemoComponent: // 15169 case Block: { // 22170 console.log('commitBeforeMutationLifeCycles end')171 return;172 }173 case ClassComponent: { // 1...
ReactFiberScheduler.js
Source:ReactFiberScheduler.js
...188 var effectTag = nextEffect.effectTag;189 if (effectTag & Snapshot) {190 recordEffect();191 var current = nextEffect.alternate;192 commitBeforeMutationLifeCycles(current, nextEffect);193 }194 // Don't cleanup effects yet;195 // This will be done by commitAllLifeCycles()196 nextEffect = nextEffect.nextEffect;197 }198 }199 function commitAllLifeCycles(finishedRoot, currentTime, committedExpirationTime) {200 {201 ReactStrictModeWarnings.flushPendingUnsafeLifecycleWarnings();202 if (warnAboutDeprecatedLifecycles) {203 ReactStrictModeWarnings.flushPendingDeprecationWarnings();204 }205 }206 while (nextEffect !== null) {...
ReactFiberCommitWork.js
Source:ReactFiberCommitWork.js
1import {2 FunctionComponent,3 ForwardRef,4 ClassComponent,5 HostRoot,6 HostComponent,7 HostText,8 HostPortal,9 IncompleteClassComponent,10 SimpleMemoComponent,11 Block,12 FundamentalComponent,13 DehydratedFragment,14 MemoComponent,15 SuspenseComponent,16 OffscreenComponent,17 LegacyHiddenComponent,18} from './ReactWorkTags';19import { Snapshot, ContentReset, Placement } from './ReactFiberFlags';20import { resolveDefaultProps } from './ReactFiberLazyComponent';21import {22 clearContainer,23 resetTextContent,24 insertInContainerBefore,25 appendChildToContainer,26 commitUpdate,27 commitTextUpdate,28} from './ReactFiberHostConfig';29import {30 NoFlags as NoHookEffect,31 HasEffect as HookHasEffect,32 Layout as HookLayout,33 Passive as HookPassive,34} from './ReactHookEffectTags';35const invariant = require('invariant');36const isSuspenseBoundaryBeingHidden = (current, finishedWork) => {37 if (current !== null) {38 const oldState = current.memoizedState;39 if (oldState === null || oldState.dehydrated !== null) {40 const newState = finishedWork.memoizedState;41 return newState !== null && newState.dehydrated === null;42 }43 }44 return false;45};46const commitBeforeMutationLifeCycles = (current, finishedWork) => {47 switch (finishedWork.tag) {48 case FunctionComponent:49 case ForwardRef:50 case SimpleMemoComponent:51 case Block: {52 return;53 }54 case ClassComponent: {55 if (finishedWork.flags & Snapshot) {56 if (current !== null) {57 const prevProps = current.memoizedProps;58 const prevState = current.memoizedState;59 const instance = finishedWork.stateNode;60 const snapshot = instance.getSnapshotBeforeUpdate(61 finishedWork.elementType === finishedWork.type62 ? prevProps63 : resolveDefaultProps(finishedWork.type, prevProps),64 prevState65 );66 instance.__reactInternalSnapshotBeforeUpdate = snapshot;67 }68 }69 return;70 }71 case HostRoot: {72 if (finishedWork.flags & Snapshot) {73 const root = finishedWork.stateNode;74 clearContainer(root.containerInfo);75 }76 return;77 }78 case HostComponent:79 case HostText:80 case HostPortal:81 case IncompleteClassComponent:82 return;83 }84 invariant(85 false,86 'This unit of work tag should not have side-effects. This error is ' +87 'likely caused by a bug in React. Please file an issue.'88 );89};90const commitResetTextContent = (current) => {91 resetTextContent(current.stateNode);92};93const commitDetachRef = (current) => {94 const currentRef = current.ref;95 if (currentRef !== null) {96 if (typeof currentRef === 'function') {97 currentRef(null);98 } else {99 currentRef.current = null;100 }101 }102};103const isHostParent = (fiber) => {104 return (105 fiber.tag === HostComponent ||106 fiber.tag === HostRoot ||107 fiber.tag === HostPortal108 );109};110const getHostParentFiber = (fiber) => {111 let parent = fiber.return;112 while (parent !== null) {113 if (isHostParent(parent)) {114 return parent;115 }116 parent = parent.return;117 }118 invariant(119 false,120 'Expected to find a host parent. This error is likely caused by a bug ' +121 'in React. Please file an issue.'122 );123};124const getHostSibling = (fiber) => {125 let node = fiber;126 while (true) {127 while (node.sibling === null) {128 if (node.return === null || isHostParent(node.return)) return null;129 node = node.return;130 }131 node.sibling.return = node.return;132 node = node.sibling;133 let shouldRun = true;134 while (135 node.tag !== HostComponent &&136 node.tag !== HostText &&137 node.tag !== DehydratedFragment &&138 shouldRun139 ) {140 if (node.flags & Placement) {141 shouldRun = false;142 }143 if (node.child === null || node.tag === HostPortal) {144 shouldRun = false;145 } else {146 node.child.return = node;147 node = node.child;148 }149 }150 if (!(node.flags & Placement)) {151 return node.stateNode;152 }153 }154};155const insertOrAppendPlacementNodeIntoContainer = (node, before, parent) => {156 const { tag } = node;157 const isHost = tag === HostComponent || tag === HostText;158 if (isHost) {159 const stateNode = isHost ? node.stateNode : node.stateNode.instance;160 if (before) {161 insertInContainerBefore(parent, stateNode, before);162 } else {163 appendChildToContainer(parent, stateNode);164 }165 } else if (tag === HostPortal) {166 //167 } else {168 const child = node.child;169 if (child !== null) {170 insertOrAppendPlacementNodeIntoContainer(child, before, parent);171 let sibling = child.sibling;172 while (sibling !== null) {173 insertOrAppendPlacementNodeIntoContainer(sibling, before, parent);174 sibling = sibling.sibling;175 }176 }177 }178};179const insertOrAppendPlacementNode = (node, before, parent) => {180 const { tag } = node;181 const isHost = tag === HostComponent || tag === HostText;182 if (isHost) {183 const stateNode = isHost ? node.stateNode : node.stateNode.instance;184 if (before) {185 parent.insertBefore(stateNode, before);186 } else {187 parent.appendChild(stateNode);188 }189 } else if (tag === HostPortal) {190 // If the insertion itself is a portal, then we don't want to traverse191 // down its children. Instead, we'll get insertions from each child in192 // the portal directly.193 } else {194 const child = node.child;195 if (child !== null) {196 insertOrAppendPlacementNode(child, before, parent);197 let sibling = child.sibling;198 while (sibling !== null) {199 insertOrAppendPlacementNode(sibling, before, parent);200 sibling = sibling.sibling;201 }202 }203 }204};205const commitPlacement = (finishedWork) => {206 const parentFiber = getHostParentFiber(finishedWork);207 let parent;208 let isContainer;209 const parentStateNode = parentFiber.stateNode;210 switch (parentFiber.tag) {211 case HostComponent:212 parent = parentStateNode;213 isContainer = false;214 break;215 case HostRoot:216 parent = parentStateNode.containerInfo;217 isContainer = true;218 break;219 case HostPortal:220 parent = parentStateNode.containerInfo;221 isContainer = true;222 break;223 case FundamentalComponent:224 default:225 invariant(226 false,227 'Invalid host parent fiber. This error is likely caused by a bug ' +228 'in React. Please file an issue.'229 );230 }231 if (parentFiber.flags & ContentReset) {232 resetTextContent(parent);233 parentFiber.flags &= ~ContentReset;234 }235 const before = getHostSibling(finishedWork);236 if (isContainer) {237 insertOrAppendPlacementNodeIntoContainer(finishedWork, before, parent);238 } else {239 insertOrAppendPlacementNode(finishedWork, before, parent);240 }241};242const commitHookEffectListUnmount = (tag, finishedWork) => {243 const updateQueue = finishedWork.updateQueue;244 const lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;245 if (lastEffect !== null) {246 const firstEffect = lastEffect.next;247 let effect = firstEffect;248 do {249 if ((effect.tag & tag) === tag) {250 const destroy = effect.destroy;251 effect.destroy = undefined;252 if (destroy !== undefined) {253 destroy();254 }255 }256 effect = effect.next;257 } while (effect !== firstEffect);258 }259};260const commitWork = (current, finishedWork) => {261 switch (finishedWork.tag) {262 case FunctionComponent:263 case ForwardRef:264 case MemoComponent:265 case SimpleMemoComponent:266 case Block: {267 commitHookEffectListUnmount(HookLayout | HookHasEffect, finishedWork);268 return;269 }270 case ClassComponent: {271 return;272 }273 case HostComponent: {274 const instance = finishedWork.stateNode;275 if (instance != null) {276 const newProps = finishedWork.memoizedProps;277 const oldProps = current !== null ? current.memoizedProps : newProps;278 const type = finishedWork.type;279 const updatePayload = finishedWork.updateQueue;280 finishedWork.updateQueue = null;281 if (updatePayload !== null) {282 commitUpdate(283 instance,284 updatePayload,285 type,286 oldProps,287 newProps,288 finishedWork289 );290 }291 }292 return;293 }294 case HostText: {295 invariant(296 finishedWork.stateNode !== null,297 'This should have a text node initialized. This error is likely ' +298 'caused by a bug in React. Please file an issue.'299 );300 const textInstance = finishedWork.stateNode;301 const newText = finishedWork.memoizedProps;302 const oldText = current !== null ? current.memoizedProps : newText;303 commitTextUpdate(textInstance, oldText, newText);304 return;305 }306 case HostRoot: {307 const root = finishedWork.stateNode;308 if (root.hydrate) {309 root.hydrate = false;310 commitHydratedContainer(root.containerInfo);311 }312 return;313 }314 // case SuspenseComponent: {315 // commitSuspenseComponent(finishedWork);316 // attachSuspenseRetryListeners(finishedWork);317 // return;318 // }319 // case IncompleteClassComponent: {320 // return;321 // }322 // case FundamentalComponent: {323 // break;324 // }325 // case OffscreenComponent:326 // case LegacyHiddenComponent: {327 // const newState = finishedWork.memoizedState;328 // const isHidden = newState !== null;329 // hideOrUnhideAllChildren(finishedWork, isHidden);330 // return;331 // }332 }333 invariant(334 false,335 'This unit of work tag should not have side-effects. This error is ' +336 'likely caused by a bug in React. Please file an issue.'337 );338};339const unmountHostComponents = (340 finishedRoot,341 current,342 renderPriorityLevel343) => {};344const detachFiberMutation = (fiber) => {345 fiber.alternate = null;346 fiber.child = null;347 fiber.dependencies = null;348 fiber.firstEffect = null;349 fiber.lastEffect = null;350 fiber.memoizedProps = null;351 fiber.memoizedState = null;352 fiber.pendingProps = null;353 fiber.return = null;354 fiber.updateQueue = null;355};356const commitDeletion = (finishedRoot, current, renderPriorityLevel) => {357 unmountHostComponents(finishedRoot, current, renderPriorityLevel);358 const alternate = current.alternate;359 detachFiberMutation(current);360 if (alternate !== null) {361 detachFiberMutation(alternate);362 }363};364export {365 isSuspenseBoundaryBeingHidden,366 commitBeforeMutationLifeCycles,367 commitResetTextContent,368 commitDetachRef,369 commitPlacement,370 commitWork,371 commitDeletion,...
fiberCommitWork.js
Source:fiberCommitWork.js
...112 return node.stateNode;113 }114 }115}116export function commitBeforeMutationLifeCycles(current, finishedWork) {117 switch (finishedWork.tag) {118 case FunctionComponent: {119 commitHookEffectList(UnmountSnapshot, NoHookEffect, finishedWork);120 }121 case HostRoot:122 case HostComponent:123 case HostText:124 case HostPortal:125 case IncompleteClassComponent:126 // Nothing to do for these component types127 return;128 }129}130export function commitPlacement(finishedWork) {...
env.js
Source:env.js
1const fs = require('fs');2const path = require('path');3const paths = require('./paths');4// Make sure that including paths.js after env.js will read .env variables.5delete require.cache[require.resolve('./paths')];6const NODE_ENV = process.env.NODE_ENV;7if (!NODE_ENV) {8 throw new Error(9 'The NODE_ENV environment variable is required but was not specified.'10 );11}12// https://github.com/bkeepers/dotenv#what-other-env-files-can-i-use13const dotenvFiles = [14 `${paths.dotenv}.${NODE_ENV}.local`,15 `${paths.dotenv}.${NODE_ENV}`,16 // Don't include `.env.local` for `test` environment17 // since normally you expect tests to produce the same18 // results for everyone19 NODE_ENV !== 'test' && `${paths.dotenv}.local`,20 paths.dotenv,21].filter(Boolean);22// Load environment variables from .env* files. Suppress warnings using silent23// if this file is missing. dotenv will never modify any environment variables24// that have already been set. Variable expansion is supported in .env files.25// https://github.com/motdotla/dotenv26// https://github.com/motdotla/dotenv-expand27dotenvFiles.forEach(dotenvFile => {28 if (fs.existsSync(dotenvFile)) {29 require('dotenv-expand')(30 require('dotenv').config({31 path: dotenvFile,32 })33 );34 }35});36// We support resolving modules according to `NODE_PATH`.37// This lets you use absolute paths in imports inside large monorepos:38// https://github.com/facebook/create-react-app/issues/253.39// It works similar to `NODE_PATH` in Node itself:40// https://nodejs.org/api/modules.html#modules_loading_from_the_global_folders41// Note that unlike in Node, only *relative* paths from `NODE_PATH` are honored.42// Otherwise, we risk importing Node.js core modules into an app instead of webpack shims.43// https://github.com/facebook/create-react-app/issues/1023#issuecomment-26534442144// We also resolve them to make sure all tools using them work consistently.45const appDirectory = fs.realpathSync(process.cwd());46process.env.NODE_PATH = (process.env.NODE_PATH || '')47 .split(path.delimiter)48 .filter(folder => folder && !path.isAbsolute(folder))49 .map(folder => path.resolve(appDirectory, folder))50 .join(path.delimiter);51// Grab NODE_ENV and REACT_APP_* environment variables and prepare them to be52// injected into the application via DefinePlugin in webpack configuration.53const REACT_APP = /^REACT_APP_/i;54function getClientEnvironment(publicUrl) {55 const raw = Object.keys(process.env)56 .filter(key => REACT_APP.test(key))57 .reduce(58 (env, key) => {59 env[key] = process.env[key];60 return env;61 },62 {63 // Useful for determining whether weâre running in production mode.64 // Most importantly, it switches React into the correct mode.65 NODE_ENV: process.env.NODE_ENV || 'development',66 // Useful for resolving the correct path to static assets in `public`.67 // For example, <img src={process.env.PUBLIC_URL + '/img/logo.png'} />.68 // This should only be used as an escape hatch. Normally you would put69 // images into the `src` and `import` them in code to get their paths.70 PUBLIC_URL: publicUrl,71 // We support configuring the sockjs pathname during development.72 // These settings let a developer run multiple simultaneous projects.73 // They are used as the connection `hostname`, `pathname` and `port`74 // in webpackHotDevClient. They are used as the `sockHost`, `sockPath`75 // and `sockPort` options in webpack-dev-server.76 WDS_SOCKET_HOST: process.env.WDS_SOCKET_HOST,77 WDS_SOCKET_PATH: process.env.WDS_SOCKET_PATH,78 WDS_SOCKET_PORT: process.env.WDS_SOCKET_PORT,79 }80 );81 // Stringify all values so we can feed into webpack DefinePlugin82 const stringified = {83 'process.env': Object.keys(raw).reduce((env, key) => {84 env[key] = JSON.stringify(raw[key]);85 return env;86 }, {}),87 "__DEV__": false,88 "__PROFILE__": true,89 "__EXPERIMENTAL__": true,90 "__UMD__": true,91 __NEW_RECONCILER__: true,92 '__LOG_NAMES__': JSON.stringify([93 // 'createRoot',94 // 'ReactDOMRoot',95 // 'createRootImpl',96 // 'createContainer',97 // 'createFiberRoot',98 // 'createHostRootFiber',99 // 'createFiber',100 // 'FiberNode',101 // 'initializeUpdateQueue',102 // 'markContainerAsRoot',103 // 'listenToAllSupportedEvents',104 // 'jsx',105 'render',106 // 'updateContainer',107 // 'enqueueUpdate',108 // 'scheduleUpdateOnFiber',109 // 'ensureRootIsScheduled',110 // 'unstable_scheduleCallback',111 // 'requestHostCallback',112 // 'performWorkUntilDeadline',113 // 'flushWork',114 // 'workLoop',115 // 'performConcurrentWorkOnRoot',116 // 'flushPassiveEffects',117 // 'renderRootConcurrent',118 // 'prepareFreshStack',119 // 'createWorkInProgress',120 // 'createFiber',121 // 'FiberNode',122 // 'performUnitOfWork',123 // 'beginWork',124 // 'setInitialDOMProperties',125 // 'setInitialProperties',126 // 'diffProperties',127 // 'dispatchEvent',128 // 'mountIndeterminateComponent',129 // 'renderWithHooks',130 'useState',131 // 'mountState',132 // 'mountWorkInProgressHook',133 // 'updateHostRoot',134 // 'cloneUpdateQueue',135 // 'processUpdateQueue',136 // 'getStateFromUpdate',137 // 'reconcileChildren',138 // 'reconcileChildFibers',139 // 'reconcileChildrenArray',140 // 'createChild',141 // 'mountChildFibers',142 // 'createFiberFromElement',143 // 'createFiberFromTypeAndProps',144 // 'completeUnitOfWork',145 // 'completeWork',146 // 'commitRootImpl',147 // 'commitBeforeMutationEffects',148 // 'commitBeforeMutationEffectsImpl',149 // 'commitBeforeMutationLifeCycles',150 // 'clearContainer',151 // 'commitMutationEffectsImpl',152 // 'commitPlacement',153 // 'getHostParentFiber',154 // 'getHostSibling',155 // 'insertOrAppendPlacementNodeIntoContainer',156 // 'insertOrAppendPlacementNode',157 // 'trapClickOnNonInteractiveElement',158 // 'resetAfterCommit',159 // 'restoreSelection',160 // 'recursivelyCommitLayoutEffects',161 // 'ensureRootIsScheduled',162 // 'createInstance',163 // 'createElement',164 // 'updateFiberProps',165 // 'bubbleProperties',166 // 'dispatchDiscreteEvent',167 // 'createEventListenerWrapperWithPriority',168 'updateWorkInProgressHook'169 ]),170 };171 return { raw, stringified };172}...
record.js
Source:record.js
1/**2 * 1. ç¼è¯é¶æ®µ å° éè¿ babel å° jsx è¯æ³ 转å为 react.ReactElement(type, config, ...) å½æ° 3 * çå°é¡µé¢æ§è¡æ¶å 转为 ---> reactElement å
ç´ | vdom | 对象4 * 5 * 6 * 7 * 2. å建æ´æ°é¶æ®µ ReactDom.render() 8 * å建fiberRoot rootFiber 9 * fiberRoot.current = rootFiber10 * rootFiber.stateNode = fiberRoot11 * rootFiber.return = null12 * rootFiber.child = fiber ---- <App /> 13 * 计ç®è¿ææ¶é´ computeExpirationForFiber expirationTime14 * å建 æ´æ°å¯¹è±¡ createUpdate update 15 * update.payload = { element } || partialState || () => partialState16 * å建 æ´æ°éå enqueueUpdate UpdateQueue17 * 18 * 19 * 3. åè°é¶æ®µ scheduleWork20 * æ¾å°æ´æ°å¯¹åºç fiberRoot èç¹(setState forceUpdate ä¼ çæ¯æ¬èº«çfiberèç¹ æ以éè¦åä¸æ¥æ¾)21 * éç½®stack (å
Œ
±åset22 * 23 * 24 * 25 * 符åæ¡ä»¶ 请æ±ä»»å¡è°åº¦26 * scheduleWorkToRoot åä¸æ¥æ¾ fiberRoot 顺便修æ¹ç¶æ 触åæ´æ°çfiber è¿ææ¶é´è¥å°äºåæ´æ° 27 * requestWork(éè¿ requestAnimationFrame å postMessage 模æå®ç°)28 * å° rootFiber èç¹å å
¥è°åº¦éåä¸29 * å¤ææ¯å¦æ¯æ¹éæ´æ°30 * æ ¹æ® expirationTime å¤æè°åº¦ç±»å31 * 32 * addRootToSchedule33 * scheduleCallbackWithExpirationTime // å¼æ¥è°åº¦34 * 35 * performWork()36 * deadline !== null 37 * ? 38 * : performWorkOnRoot39 * 40 * 41 * renderRoot42 * è°ç¨ workLoopè¿è¡å¾ªç¯åå
æ´æ° éåæ´ä¸ª fiberTree å¤æèç¹ updateQueueæ¯å¦ç±å
容 å³å®æ¯å¦æ´æ°43 * æè·é误并è¿è¡å¤ç (é¢æ å ä¸å¯é¢æ) 44 * èµ°å®æµç¨åè¿è¡åå45 * 46 * wookLoop47 * performUnitOfWork 48 * beginWork49 * å¤æç»ä»¶æ´æ°æ¯å¦å¯ä»¥ä¼å50 * æ ¹æ®èç¹ç±»åååå¤ç51 * æ ¹æ® expirationTime çä¿¡æ¯å¤æèç¹æ´æ°æ¯å¦å¯ä»¥è·³è¿52 * 53 */54/**55 * container._reactRootContainer = fiberRoot56 * fiberRoor_internalRoot = fiberRoor57 * fiberRoor.current = rootFiber58 * rootFiber.child = fiber ---- <App />59 * 60 * container.current = rootFiber61 */62/**63 * expirationTime ç§ç±»64 * 65 * Sync 166 * Async 模å¼67 * æå®context68 */69/**70 * ClassComponent setState forceUpdate é对æ个èç¹ å建æ´æ°71 */72/**73 * fiber schedule 74 * 75 * scheduleWork -> addRootToScheduler (react åºç¨ä¸åå¨å¤ä¸ªåºç¨èç¹ root å¤æ¬¡è°ç¨ ReactDom.render)76 * .. -> requestWork -> sync 77 * ? performSyncWork -- without deadline --> performWork78 * : scheduleCallBackWithExprirationTime -> å¼æ¥è°åº¦è¿ç¨79 * 80 * ..å¼æ¥è°åº¦è¿ç¨ -> scheduleDeffedCallback -> add callbackList -> requestIdleCallback(èªå®ç°)81 * -> -> performAsyncWork with deadline --> performWork82 * 83 * performWork without deadline 84 * ? æ§è¡ä¸ä¸æ¥æ交æ´æ° // 85 * : performWorkOnRoot -> findHighestPriorityRoot -> 86 * 87 */88/**89 * renderRoot -> while(true){workLoop(isYieldy)} -> performUnitOfWork 90 * -> beginWork (reactEl-fiber) -> updateXXX -> reconcileChildren()91 * -> completeUnitOfWork (æ¶éeffectList)92 */93/**94 * hooks95 * 96 * beginWork(current, workInProgress, renderExpirationTime) 97 * -> updateFunctionComponent(current, workInProgress, Component, nextProps, renderExpirationTime) 98 * -> prepareToUseHooks(current, workInProgress, renderExpirationTime)99 * -> nextChildren = Component(nextProps, context);100 * -> finishHooks(Component, nextProps, nextChildren, context)101 * -> reconcileChildren(current, workInProgress,nextChildren,renderExpirationTime)102 * 103 * 104 * current.memoizedState -> firstCurrentHook 105 * fiber.memoizedState æè½½ hooké¾è¡¨106 * hook.queue.last æè½½è¿ updateé¾è¡¨ 107 * å
¨å±åé firstCurrentHook æåä¸ä¸ª 108 * currentlyRenderingFiber = å½æ°æ§è¡è¿ç¨ä¸ 对åºçå½å fiber109 * firstCurrentHook = å½æ°æ§è¡è¿ç¨ä¸ 第ä¸ä¸ª hooså½æ°çæç hook 110 * ä¸ä¸ª hookå½æ° çæä¸ä¸ª hook对象 (é¾è¡¨ç»æ)111 * hookå±æ§(queue queue.lastæåæåä¸ä¸ªæ´æ°å¯¹è±¡update memoizedStateç¨äºæ¾åçå¼ è®°å½ä¸ä¸æ¬¡çå¼)112 * dispatchAction éå
åå¨ æå± fiber ququeéå 触åæ´æ°æ¶ å¯ä»¥ ç´æ¥è®¡ç® 113 * 114 * userEffect 115 * hook.memoizedState = effect = { tag, create, destroy, inputs, next }116 * fiber.updateQueue = componentUpdateQueue = { lastEffect: 'åå¨çeffectList æåä¸ä¸ªeffect' }117 * commitHookEffectList ä¸ä¼ä½¿ç¨å° fiber.updateQueue118 * (commitBeforeMutationLifeCycles,commitPassiveHookEffects,commitLifeCycles,commitWork)119 * 120 * 121 * useRef å建ä¸ä¸ªå¯¹è±¡ { current: initialValue } æè½½hookå¯¹è±¡ä¸ hook.memoizedState = ref...
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 await page.waitForTimeout(5000);7 await page.close();8 await browser.close();9})();10const {helper} = require('./helper');11const {Events} = require('./events');12const {Connection} = require('./crConnection');13const {BrowserContext} = require('./browserContext');14const {Browser} = require('./browser');15const {assert} = require('./helper');16const {Events: BrowserContextEvents} = require('./browserContext');17const {debugError} = require('./helper');18const {Page} = require('./page');19const {CRPage} = require('./crPage');20const {CRSession} = require('./crConnection');21const {Events: PageEvents} = require('./page');22const {Events: CRPageEvents} = require('./crPage');23const {Events: CRSessionEvents} = require('./crConnection');24class CRBrowser extends Browser {25 * @param {!Puppeteer.CDPSession} client26 * @param {!Object} contextPayload27 * @param {!Object=} options28 constructor(client, contextPayload, options = {}) {29 super(options);30 this._defaultContextOptions = {};31 this._contexts = new Map();32 this._connection = new Connection(client);33 this._connection.on(CRConnectionEvents.Disconnected, () => this._didDisconnect());34 this._connection.on(CRConnectionEvents.Crashed, () => this._didCrash());35 this._connection.on(CRConnectionEvents.TargetCreated, this._onTargetCreated.bind(this));36 this._connection.on(CRConnectionEvents.TargetDestroyed, this._onTargetDestroyed.bind(this));37 this._connection.on(CRConnectionEvents.TargetInfoChanged, this._onTargetInfoChanged.bind(this));38 this._connection.on(CRConnectionEvents.BrowserContextCreated, this._onBrowserContextCreated.bind(this));39 this._connection.on(CRConnectionEvents.BrowserContextDestroyed, this._onBrowserContextDestroyed.bind(this));40 this._connection.on(CRConnectionEvents.BrowserContextsCleared, this._on
Using AI Code Generation
1(async () => {2 const { chromium } = require('playwright');3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const element = await page.$('text=Get started');7 await element.scrollIntoViewIfNeeded();8 await page.commitBeforeMutationLifeCycles();9 await element.click();10 await browser.close();11})();12(async () => {13 const { chromium } = require('playwright');14 const browser = await chromium.launch();15 const context = await browser.newContext();16 const page = await context.newPage();17 const element = await page.$('text=Get started');18 await element.scrollIntoViewIfNeeded();19 await page._delegate._commitBeforeMutationLifeCycles();20 await element.click();21 await browser.close();22})();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.route('**', route => route.commitBeforeMutationLifeCycles());7 await page.screenshot({ path: 'google.png' });8 await browser.close();9})();10const { chromium } = require('playwright');11(async () => {12 const browser = await chromium.launch();13 const context = await browser.newContext();14 const page = await context.newPage();15 await page.waitForSelector('.FPdoLc');16 await page.screenshot({ path: 'google.png' });17 await browser.close();18})();
Using AI Code Generation
1const playwright = require('playwright');2const { commitBeforeMutationLifeCycles } = require('playwright/lib/server/dom.js');3(async () => {4 const browser = await playwright.webkit.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const input = await page.$('input[name="search"]');8 commitBeforeMutationLifeCycles();9 await input.fill('Playwright');10 await page.waitForTimeout(2000);11 await browser.close();12})();
Using AI Code Generation
1const { chromium } = require('playwright');2const { commitBeforeMutationLifeCycles } = require('playwright/lib/server/domPatch');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.evaluate(() => {8 const div = document.createElement('div');9 div.id = 'test';10 document.body.appendChild(div);11 });12 await commitBeforeMutationLifeCycles(page);13 await page.close();14 await context.close();15 await browser.close();16})();
Using AI Code Generation
1const {chromium} = require('playwright');2const {commitBeforeMutationLifeCycles} = require('playwright/lib/server/dom.js');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.evaluate(() => {8 const div = document.createElement('div');9 document.body.appendChild(div);10 });11 await commitBeforeMutationLifeCycles(page);12 await page.screenshot({path: 'example.png'});13 await browser.close();14})();
Using AI Code Generation
1const { commitBeforeMutationLifeCycles } = require('playwright/internal/inspector');2await commitBeforeMutationLifeCycles(page);3const { commitAfterMutationLifeCycles } = require('playwright/internal/inspector');4await commitAfterMutationLifeCycles(page);5const { commitLoadLifeCycles } = require('playwright/internal/inspector');6await commitLoadLifeCycles(page);7const { commitLifeCycles } = require('playwright/internal/inspector');8await commitLifeCycles(page);9const { commitDOMContentLoadedLifeCycles } = require('playwright/internal/inspector');10await commitDOMContentLoadedLifeCycles(page);11const { getFrameExecutionContext } = require('playwright/internal/inspector');12await getFrameExecutionContext(page);13const { getFrameContextData } = require('playwright/internal/inspector');14await getFrameContextData(page);15const { getFrameContextData } = require('playwright/internal/inspector');16await getFrameContextData(page);17const { getFrameContextData } = require('playwright/internal/inspector');18await getFrameContextData(page);19const { getFrameContextData } = require('playwright/internal/inspector');20await getFrameContextData(page);21const { getFrameContextData } = require('playwright/internal/inspector');22await getFrameContextData(page);23const { getFrameContextData } = require('playwright/internal/inspector');24await getFrameContextData(page);25const { getFrameContextData } = require('playwright/internal/inspector
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.fill('input[name="q"]', 'Playwright');7 await page.commitBeforeMutationLifeCycles();8 await page.click('input[type="submit"]');9 await page.screenshot({ path: `example.png` });10 await browser.close();11})();
Using AI Code Generation
1import { Page } from "playwright";2const page = await browser.newPage();3const internalApi: any = page["_delegate"];4const dom = await internalApi["_page"]["_frameManager"]["_mainFrame"]["_dom"];5await dom["commitBeforeMutationLifeCycles"]();6await dom["commitAfterMutationLifeCycles"]();7import { Page } from "playwright";8const page = await browser.newPage();9const internalApi: any = page["_delegate"];10const dom = await internalApi["_page"]["_frameManager"]["_mainFrame"]["_dom"];11await dom["commitBeforeMutationLifeCycles"]();12await dom["commitAfterMutationLifeCycles"]();13const dom = await internalApi["_page"]["_frameManager"]["_mainFrame"]["_dom"];14await dom["commitBeforeMutationLifeCycles"]();15await dom["commitAfterMutationLifeCycles"]();
Playwright tutorial
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.
Chapters:
- What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
- How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
- Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
- What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
- Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
- Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
- Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
- Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
- Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
- Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
- Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
- Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.
Run Playwright Internal automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
