Best JavaScript code snippet using playwright-internal
ReactFiberHooks.js
Source: ReactFiberHooks.js
...10const HookDispatcherOnUpdate = {//æ´æ°æ¶çæ¹æ³11 useReducer: updateReducer,12 useState:updateState13}14function basicStateReducer(state,action){15 return typeof action === 'function'?action(state):action;16}17function updateState(initialState){18 return updateReducer(basicStateReducer,initialState);19}20function mountState(initialState){21 let hook = mountWorkInProgressHook();//è·åå½åçhook22 hook.memoizedState = initialState;//023 const queue = (hook.queue = {pending:null,24 lastRenderedReducer:basicStateReducer,25 lastRenderedState:initialState26 });27 const dispatch = dispatchAction.bind(null,currentlyRenderingFiber,queue);28 return [hook.memoizedState,dispatch];...
useState和useReducer.js
Source: useState和useReducer.js
1function App() {2 const [state, dispatch] = useReducer(reducer, {a: 1});3 const [num, updateNum] = useState(0);4 return (5 <div>6 <button onClick={() => dispatch({type: 'a'})}>{state.a}</button>7 <button onClick={() => updateNum(num => num + 1)}>{num}</button>8 </div>9 )10}11// 两个é¶æ®µï¼å£°æé¶æ®µï¼è°ç¨é¶æ®µ12// 声æé¶æ®µ13/**14 * FCè¿å
¥å°renderé¶æ®µçbeginWorkæ¶ï¼ä¼è°ç¨renderWithHooksæ¹æ³15 * 该æ¹æ³å
é¨ä¼æ§è¡FC对åºçå½æ°ï¼å³fiber.type16 */17// resolveDispatcherå½æ°ä¸»è¦æ¯ç¨æ¥å¤æmountç¶ææ¥è¿åä¸åçå¤çå½æ°ï¼dispatcherï¼ç18function useState(initalState){19 var dispatcher = resolveDispatcher();20 /**21 * åè§hook.jsä¸çuseStateå®ç°22 * 主è¦å·¥ä½æ¯çæhookï¼å°hookç»å®å°fiber.memoizedStateé¾ä¸ï¼è¿åç¶æådispatchActionå½æ°23 */24 return dispatcher.useState(initalState);25}26function useReducer(reducer, initialArg, init){27 var dispatcher = resolveDispatcher();28 return dispatcher.useReducer(reducer, initialArg, init)29}30// mountæ¶31// dispatcher.useStateä¸ä¼è°ç¨å°mountState32function mountState<S>(33 initialState: (() => S) | S,34): [S, Dispatch<BasicStateAction<S>>] {35 // å建并è¿åå½åçhook36 const hook = mountWorkInProgressHook();37 // ...èµå¼åå§state38 // å建queue39 const queue = (hook.queue = {40 pending: null,41 // ä¿ådispatchAction.bind()çå¼42 dispatch: null,43 lastRenderedReducer: basicStateReducer,44 lastRenderedState: (initialState: any),45 });46 // ...å建dispatch47 return [hook.memorizedState, dispatch];48}49function mountReducer<S, I, A>(50 reducer: (S, A) => S,51 initialArg: I,52 init?: I => S,53): [S, Dispatch<A>] {54 // å建并è¿åå½åçhook55 const hook = mountWorkInProgressHook();56 // ...èµå¼åå§state57 // å建queue58 const queue = (hook.queue = {59 pending: null,60 dispatch: null,61 // ä¸æ¬¡renderæ¶ä½¿ç¨çreducer62 lastRenderedReducer: reducer,63 // ä¸æ¬¡renderæ¶çstate64 lastRenderedState: (initialState: any),65 });66 // ...å建dispatch67 return [hook.memoizedState, dispatch]68}69// 对åºreduxä¸çreducer ââ ä¸ä¸ªè®¡ç®stateç纯å½æ°70function basicStateReducer<S>(state: S, action: BasicStateAction<S>) : S {71 return typeof action === 'function' ? action(state) : action72}73// updateæ¶ï¼useReduceråuseStateè°ç¨åä¸ä¸ªå½æ°74function updateReducer<S, I, A>(75 reducer: (S, A) => S,76 initalArg: I,77 init?: I => S,78): [S, Dispatch<A>] {79 // è·åå½åhook80 const hook = updateWorkInProgressHook();81 const queue = hook.queue;82 queue.lastRenderedReducer = reducer;83 // ...åupdateä¸updateQueue类似çæ´æ°é»è¾, å³ååºhook.queue.pendingä¸çææactionæ§è¡ä¸é84 const dispatch: Dispatch<A> = (queue.dispatch: any);85 return [hook.memoizedState, dispatch];86}87// è°ç¨é¶æ®µ88// å³ä¸ä¸ªé¶æ®µçæçdispatchï¼å两个åæ°å¨çæçæ¶å就已ç»é¢å
ä¼ å
¥äº89function dispatchAction(fiber, queue, action) {90 // ...å建update91 var update = {92 eventTime: eventTime,93 lane: lane,94 suspenseConfig: suspenseConfig,95 action: action,96 eagerReducer: null,97 eagerState: null,98 next: null99 }100 // ...å°updateå å
¥queue.pending101 var alternate = fiber.alternate;102 // currentlyRenderingFiber$1å³workInProgress, workInProgressåå¨ä»£è¡¨å½åå¤äºrenderé¶æ®µ103 if(fiber === currentlyRenderingFiber$1 || alternate !== null && alternate === currentlyRenderingFiber$1) {104 // renderé¶æ®µè§¦åçæ´æ°105 didScheduleRenderPhaseUpdateDuringThisPass = didScheduleRenderPhaseUpdate = true;106 } else {107 if(fiber.lanes === NoLanes && (alternate === null || alternate.lanes === Nolanes)) {108 // ...fiberçupdateQueue为空ï¼ä¼åè·¯å¾ //TODO109 }110 scheduleUpdateOnFiber(fiber, lane, eventTime);111 }...
useState&usereducer.js
Source: useState&usereducer.js
1//########1.声æé¶æ®µ2/***********mountæ¶************/ 3//useStateçæ§è¡æ¹æ³4function mountState<S>(5 initialState: (()=>S) | S,6) : [S, Dispatch<BasicStateAction<S>>]{7 //å建并è¿åå½åçhook8 const hook = mountWorkInProgressHook()9 //...å¤å¶åå§åstate10 //å建queue11 const queue = (hook.queue = {12 pending: null,13 dispatch: null,14 //è¿éçbasicStateReducer为useReducerçä¸ä¸ªæ¹æ³,ä¸æå¯è§15 lastRenderedReducer: basicStateReducer,16 lastRenderedState: (initialState: any),17 })18 //...å建dispatch19 return [hook.memoizedState, dispatch]20}21function mountreducer<S, I, A>(22 reducer:(S, A) => S,23 initialArg: I,24 init?: I=>S,25):[S,Dispatch<A>]{26 //å建并è¿åå½åçhook27 const hook = mountWorkInProgressHook()28 //...å¤å¶åå§state29 //å建queue30 const queu = (hook.queue = {31 //ä¿åupdate对象32 pending: null,33 //ä¿ådispatchAction.bind()çå¼34 dispatch: null,35 //ä¸ä¸æ¬¡renderæ¶ä½¿ç¨çreducer36 lastRenderedReducer: reducer,37 //ä¸ä¸æ¬¡renderæ¶çstate38 lastRenderedState: (initialState: any)39 })40 //...å建dispatch41 return [hook.memoizedState, dispatch];42}43function basicStateReducer<S>(state:S, action:BasicStateAction<S>):S{44 //è¿é对åºè¿ useStateçå½æ°å¼æ´æ°åæ®éçèµå¼æ´æ°45 return typeof action === 'function' ? action(state) : action46}47/***********updateæ¶************/ 48//æ´æ°æ¶,两è
è°ç¨çæ¯åä¸ä¸ªå½æ°updateReducer49function updateReducer<S, I, A>(50 reducer:(S, A) => S,51 initialAtg:I,52 init?: I => S,53):[S, Dispatch<A>]{54 //è·åå½åçhooks55 const hook = updateWorkInProgressHook()56 const queue = hook.queue57 queue.lastRenderedReducer = reducer58 //..åupdateä¸updateQueue类似çæ´æ°é»è¾59 const dispatch: Dispatch<A> = (queue.dispatch: any);60 return [hook.memoizedState, dispatch]61}62//########2.è°ç¨é¶æ®µ63function dispatchAction(fiber, queue, action){64 //...å建update65 const update = {66 eventTime: eventTime,67 lane:lane,68 suspenseConfig:suspenseConfig,69 action:action,70 eagerReducer:null,71 eagerState:null,72 next:null,73 }74 //...å°updateå å
¥å°queue.pending75 let alternate = fiber.alternate76 if(77 //currentlyRenderingFiberå³workInProgress 78 //workInProgressåå¨ä»£è¡¨å½åå¤äºrenderé¶æ®µã79 fiber === currentlyRenderingFiber$1 ||80 alternate !== null &&81 alternate === currentlyRenderingFiber$182 ){83 //renderé¶æ®µè§¦åçæ´æ° åä¸ä¸ªæ è®°84 didScheduleRenderPhaseUpdateDuringThisPass = 85 disScheduleRenderPhaseUpdate = true86 } else {87 //å¤æä¼å
级88 if(89 fiber.lanes === NoLanes &&90 (alternate === null || alternate.lanes === NoLanes)91 ){92 ///...fiberçupdateQueue为空,ä¼åè·¯å¾93 }94 scheduleUpdateOnFiber(fiber, lane, eventTime);95 }96}97//æ»çæµç¨æ¦æ¬å°±æ¯,å建update,å°å
¶å å
¥å°queu.pendingä¸,并å¼å¯è°åº¦98//ä¼ å
¥ç»useReducerçreducerå½æ°å
¶å®æ¯å¯åç99import { StrictMode, useReducer } from "react";100import ReactDOM from "react-dom";101const currentReducerRef = {102 current: null103};104const addReducer = (state) => state + 1;105const subReducer = (state) => state - 1;106let i = 0;107setInterval(() => {108 currentReducerRef.current = i++ % 2 ? addReducer : subReducer;109}, 1000);110function App() {111 const [state, dispatch] = useReducer(currentReducerRef.current, 0);112 return <button onClick={dispatch}>æ°åæ¯ï¼{state}</button>;113}114const rootElement = document.getElementById("root");115ReactDOM.render(116 <StrictMode>117 <App />118 </StrictMode>,119 rootElement...
hook.js
Source: hook.js
...78 baseState: 100, 79 baseQueue: null, 80 queue: {81 dispatch: Æ (),82 lastRenderedReducer: Æ basicStateReducer(state, action),83 lastRenderedState: 100,84 pending: null,85 }86 },87 queue: {88 dispatch: Æ (),89 lastRenderedReducer: Æ basicStateReducer(state, action),90 lastRenderedState: 0,91 pending: null,92 }...
ReactPartialRendererHooks.js
Source: ReactPartialRendererHooks.js
1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @flow8 */9import type {Dispatcher as DispatcherType} from 'react-reconciler/src/ReactInternalTypes';10import type PartialRenderer from './ReactPartialRenderer';11type BasicStateAction<S> = (S => S) | S;12type Dispatch<A> = A => void;13let currentlyRenderingComponent: Object | null = null;14let firstWorkInProgressHook: Hook | null = null;15let workInProgressHook: Hook | null = null;16// Whether the work-in-progress hook is a re-rendered hook17let isReRende: boolean = false;18// Whether an update was scheduled during the currently executing render pass.19let didScheduleRenderPhaseUpdate: boolean = false;20// Lazily created map of render-phase updates21let renderPhaseUpdates: Map<UpdateQueue<any>, Update<any>> | null = null;22// Conter to prevent infinite loops.23let numberOfReRenders: number = 0;24const RE_RENDER_LIMIT = 25;25let isInHookUserCodeInDev = false;26// In DEV, this is the name of the curretly executing primitive hook27let currentHookNameInDev: ?string;28export function prepareToUseHooks(componentIdentity: Object): void {29 currentlyRenderingComponent = componentIdentity;30 if (__DEV__) {31 isInHookUserCodeInDev = false;32 }33 // The following should have already been reset34 // didScheduleRenderPhaseUpdate = false;35 // firstWorkInProgressHook = null;36 // numberOfReRenders = 0;37 // renderPhaseUpdates = null;38 // workInProgressHook = null;39}40export function finishHooks(41 Component: any,42 props: any,43 children: any,44 refOrContext: any,45): any {46 // This must be called after every function component to prevent hooks from47 // being used in classes.48 while (didScheduleRenderPhaseUpdate) {49 // Updates were scheduled during the render phase. They are stored in50 // the `renderPhaseUpdates` map. Call the component again, reusing the51 // work-in-progress hooks and applying the additional updates on top. Keep52 // restarting until no more updates are scheduled.53 didScheduleRenderPhaseUpdate = false;54 numberOfReRenders += 1;55 // Start over from the beginning of the list56 workInProgressHook = null;57 children = Component(props, refOrContext);58 }59 resetHooksState();60 return children;61}62// Reset the internal hooks state if an error occurs while rendering a component63export function resetHooksState(): void {64 if (__DEV__) {65 isInHookUserCodeInDev = false;66 }67 currentlyRenderingComponent = null;68 didScheduleRenderPhaseUpdate = false;69 firstWorkInProgressHook = null;70}71function basicStateReducer<S>(state: S, action: BasicStateAction<S>): S {72 // $FlowFixMe: Flow doesn't like mixed types73 return typeof action === 'function' ? action(state) : action;74}75export function useState<S>(76 initialState: (() => S) | S,77): [S, Dispatch<BasicStateAction<S>>] {78 if (__DEV__) {79 currentHookNameInDev = 'useState'80 }81 return useReducer(82 basicStateReducer,83 )84}85export let currentPartialRenderer: PartialRenderer = (null: any);86export function setCurrentPartialRenderer(renderer: PartialRenderer) {87 currentPartialRenderer = renderer;...
ssr-dispatcher.js
Source: ssr-dispatcher.js
...38 }39 }40 return workInProgressHook;41}42function basicStateReducer(state, action) {43 return typeof action === "function" ? action(state) : action;44}45function useReducer(reducer, initialState, initialAction) {46 resolveCurrentlyRenderingFiber();47 workInProgressHook = createWorkInProgressHook();48 if (isReRender) {49 throw new Error("TODO");50 } else {51 if (reducer === basicStateReducer) {52 // Special case for `useState`.53 if (typeof initialState === "function") {54 initialState = initialState();55 }56 } else if (initialAction !== undefined && initialAction !== null) {...
Update.js
Source: Update.js
1// ReactFiberHooks.js2// æ以è°ç¨useState(0)è¿åçå°±æ¯HooksDispatcherOnUpdate.useState(0)ï¼ä¹å°±æ¯updateReducer(basicStateReducer, 0)3const HooksDispatcherOnUpdate: Dispatcher = {4 /** çç¥å
¶å®Hooks **/5 useState: updateState,6 }7 8 function updateState(initialState) {9 return updateReducer(basicStateReducer, initialState);10 }11 // * å¯ä»¥çå°updateReducerçè¿ç¨ä¸ä¼ çinitalStateå·²ç»æ å
³äºï¼æ以åå§å¼åªå¨ç¬¬ä¸æ¬¡è¢«ä½¿ç¨12 13 // ...14 function updateReducer(reducer, initialArg, init) {15 // * è·ååå§åæ¶ç hook16 const hook = updateWorkInProgressHook();17 const queue = hook.queue;18 19 // * å¼å§æ¸²ææ´æ°20 if (numberOfReRenders > 0) {21 const dispatch = queue.dispatch;22 if (renderPhaseUpdates !== null) {23 // * è·åHook对象ä¸ç queueï¼å
é¨åææ¬æ¬¡æ´æ°çä¸ç³»åæ°æ®24 const firstRenderPhaseUpdate = renderPhaseUpdates.get(queue);25 if (firstRenderPhaseUpdate !== undefined) {26 renderPhaseUpdates.delete(queue);27 let newState = hook.memoizedState;28 let update = firstRenderPhaseUpdate;29 // * è·åæ´æ°åçstate30 do {31 const action = update.action;32 // æ¤æ¶çreduceræ¯basicStateReducerï¼ç´æ¥è¿åactionçå¼33 newState = reducer(newState, action);34 update = update.next;35 } while (update !== null);36 37 // 对 æ´æ°hook.memoized 38 hook.memoizedState = newState;39 // * è¿åæ°ç stateï¼åæ´æ° hook ç dispatch æ¹æ³40 return [newState, dispatch];41 }42 }43 }44 45 // 对äºuseState触åçupdate actionæ¥è¯´ï¼å设useStateéé¢é½ä¼ çåéï¼ï¼basicStateReducerå°±æ¯ç´æ¥è¿åactionçå¼46 function basicStateReducer<S>(state: S, action: BasicStateAction<S>): S {47 return typeof action === 'function' ? action(state) : action;48 }...
Mount.js
Source: Mount.js
1// * ä¾å2const [state, setState] = useState(0);3// ReactFiberHooks.js4const HooksDispatcherOnMount: Dispatcher = {5 // ...6 useState: mountState,7 // ...8 };9// * >>>>>>> ReactCurrentDispatcher.current.useState(initialState)10 // * è°ç¨useState(0)è¿åçå°±æ¯ HooksDispatcherOnMount.useState(0)ï¼å³ä¸é¢ç mountState(0) æ¹æ³11function mountState<S>(12 initialState: (() => S) | S,13 ): [S, Dispatch<BasicStateAction<S>>] {14 // 访é®Hooké¾è¡¨çä¸ä¸ä¸ªèç¹ï¼è·åå°æ°çHook对象15 const hook = mountWorkInProgressHook();16 // å¦æå
¥åæ¯functionåä¼è°ç¨ï¼ä½æ¯ä¸æä¾åæ°17 if (typeof initialState === 'function') {18 initialState = initialState();19 }20 // stateçåå§å21 hook.memoizedState = hook.baseState = initialState;22 // queueçåå§å23 const queue = (hook.queue = {24 last: null,25 dispatch: null,26 eagerReducer: basicStateReducer, // useState使ç¨åºç¡reducer27 eagerState: (initialState: any),28 });29 // è¿å触åå¨dispatch30 const dispatch: Dispatch<BasicStateAction<S>,> 31 = (queue.dispatch = (dispatchAction.bind(32 null,33 //ç»å®å½åfiberç»ç¹åqueue34 ((currentlyRenderingFiber: any): Fiber),35 queue,36 ));37 // è¿ååå§stateå触åå¨38 return [hook.memoizedState, dispatch];39 }40 41 // 对äºuseState触åçupdate actionæ¥è¯´ï¼å设useStateéé¢é½ä¼ çåéï¼ï¼basicStateReducerå°±æ¯ç´æ¥è¿åactionçå¼42 function basicStateReducer<S>(state: S, action: BasicStateAction<S>): S {43 return typeof action === 'function' ? action(state) : action;44 }...
Using AI Code Generation
1const {chromium} = require('playwright');2(async() => {3 const browser = await chromium.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.evaluate(() => {7 window.basicStateReducer = (state, action) => {8 if (action.type === 'Page.load') {9 state.url = action.url;10 }11 return state;12 };13 });14 await page.waitForTimeout(5000);15 await browser.close();16})();17const {chromium} = require('playwright');18(async() => {19 const browser = await chromium.launch({ headless: false });20 const context = await browser.newContext();21 const page = await context.newPage();22 await page.evaluate(() => {23 window.basicStateReducer = (state, action) => {24 if (action.type === 'Page.load') {25 state.url = action.url;26 }27 return state;28 };29 });30 await page.waitForTimeout(5000);31 await browser.close();32})();33const {chromium} = require('playwright');34(async() => {35 const browser = await chromium.launch({ headless: false });36 const context = await browser.newContext();37 const page = await context.newPage();38 await page.evaluate(() => {39 window.basicStateReducer = (state, action) => {40 if (action.type === 'Page.load') {41 state.url = action.url;42 }43 return state;44 };45 });46 await page.waitForTimeout(5000);47 await browser.close();48})();49const {chromium} = require('playwright');50(async() => {51 const browser = await chromium.launch({ headless: false });52 const context = await browser.newContext();
Using AI Code Generation
1const { chromium } = require('playwright');2const { basicStateReducer } = require('playwright-core/lib/state');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.screenshot({ path: 'example.png' });8 await browser.close();9})();10const { chromium } = require('playwright-core');11const { basicStateReducer } = require('playwright-core/lib/state');12(async () => {13 const browser = await chromium.launch();14 const context = await browser.newContext();15 const page = await context.newPage();16 await page.screenshot({ path: 'example.png' });17 await browser.close();18})();19const { chromium } = require('playwright-core');20const { basicStateReducer } = require('playwright-core/lib/state');21(async () => {22 const browser = await chromium.launch();23 const context = await browser.newContext();24 const page = await context.newPage();25 await page.screenshot({ path: 'example.png' });26 await browser.close();27})();28const { chromium } = require('playwright-core');29const { basicStateReducer } = require('playwright-core/lib/state');30(async () => {31 const browser = await chromium.launch();32 const context = await browser.newContext();33 const page = await context.newPage();34 await page.screenshot({ path: 'example.png' });35 await browser.close();36})();37const { chromium } = require('playwright-core');38const { basicStateReducer } = require('playwright-core/lib/state');39(async () => {40 const browser = await chromium.launch();41 const context = await browser.newContext();42 const page = await context.newPage();
Using AI Code Generation
1const { basicStateReducer } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement');2const { basicStateReducer } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement');3const state = {4};5const action = {6};7basicStateReducer(state, action);8console.log(state);9{10 {11 }12}13const { codeGeneratorReducer } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement');14const state = {15};16const action = {17};18codeGeneratorReducer(state, action);19console.log(state);20{21 {22 code: 'await page.click(\'button\');'23 }24}25const { codeGeneratorReducer } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement');26const state = {27};28const action = {29};30codeGeneratorReducer(state, action);31console.log(state);32{33 {
Using AI Code Generation
1const { basicStateReducer } = require('playwright/lib/client/supplements/recorder/recorderSupplement');2const { Page } = require('playwright/lib/client/page');3const { Frame } = require('playwright/lib/client/frame');4const { basicStateReducer } = require('playwright/lib/client/supplements/recorder/recorderSupplement');5const { Page } = require('playwright/lib/client/page');6const { Frame } = require('playwright/lib/client/frame');7const { basicStateReducer } = require('playwright/lib/client/supplements/recorder/recorderSupplement');8const { Page } = require('playwright/lib/client/page');9const { Frame } = require('playwright/lib/client/frame');10const { basicStateReducer } = require('playwright/lib/client/supplements/recorder/recorderSupplement');11const { Page } = require('playwright/lib/client/page');12const { Frame } = require('playwright/lib/client/frame');13const { basicStateReducer } = require('playwright/lib/client/supplements/recorder/recorderSupplement');14const { Page } = require('playwright/lib/client/page');15const { Frame } = require('playwright/lib/client/frame');16const { basicStateReducer } = require('playwright/lib/client/supplements/recorder/recorderSupplement');17const { Page } = require('playwright/lib/client/page');18const { Frame } = require('playwright/lib/client/frame');19const { basicStateReducer } = require('playwright/lib/client/supplements/recorder/recorderSupplement');20const { Page } = require('playwright/lib/client/page');21const { Frame } = require('playwright/lib/client/frame');22const { basicStateReducer } = require('playwright/lib/client/supplements/recorder/recorderSupplement');23const { Page } = require('playwright/lib/client/page');24const { Frame } = require('playwright/lib/client/frame');25const {
Using AI Code Generation
1const { basicStateReducer } = require('playwright/lib/server/stateSnapshot');2const { state } = require('playwright/lib/server/state');3const stateSnapshot = basicStateReducer(state, { type: 'snapshot' });4console.log(stateSnapshot);5const { basicStateReducer } = require('playwright/lib/server/stateSnapshot');6const { state } = require('playwright/lib/server/state');7const stateSnapshot = basicStateReducer(state, { type: 'snapshot' });8console.log(stateSnapshot);9const { basicStateReducer } = require('playwright/lib/server/stateSnapshot');10const { state } = require('playwright/lib/server/state');11const stateSnapshot = basicStateReducer(state, { type: 'snapshot' });12console.log(stateSnapshot);13const { basicStateReducer } = require('playwright/lib/server/stateSnapshot');14const { state } = require('playwright/lib/server/state');15const stateSnapshot = basicStateReducer(state, { type: 'snapshot' });16console.log(stateSnapshot);17const { basicStateReducer } = require('playwright/lib/server/stateSnapshot');18const { state } = require('playwright/lib/server/state');19const stateSnapshot = basicStateReducer(state, { type: 'snapshot' });20console.log(stateSnapshot);21const { basicStateReducer } = require('playwright/lib/server/stateSnapshot');22const { state } = require('playwright/lib/server/state');23const stateSnapshot = basicStateReducer(state, { type: 'snapshot' });24console.log(stateSnapshot);25const { basicStateReducer } = require('playwright/lib/server/stateSnapshot');26const { state } = require('playwright/lib/server/state');27const stateSnapshot = basicStateReducer(state, { type: 'snapshot' });28console.log(stateSnapshot);29const { basicStateReducer } = require('playwright/lib/server/stateSnapshot');30const { state } = require('playwright/lib/server/state');31const stateSnapshot = basicStateReducer(state, { type: 'snapshot' });32console.log(stateSnapshot);33const { basicStateReducer } = require('playwright/lib/server/stateSnapshot');34const { state } = require('playwright/lib/server/state');35const stateSnapshot = basicStateReducer(state, { type: 'snapshot' });36console.log(stateSnapshot);37const { basicStateReducer } = require('playwright/lib/server/stateSnapshot');38const { state
Using AI Code Generation
1const { basicStateReducer } = require('playwright/lib/server/frames');2const state = basicStateReducer({}, { method: 'SetDocumentContent', params: { document: 'Hello World' } });3console.log(state);4const { basicStateReducer } = require('playwright/lib/server/frames');5const state = basicStateReducer({}, { method: 'SetDocumentContent', params: { document: 'Hello World' } });6console.log(state);7const { basicStateReducer } = require('playwright/lib/server/frames');8const state = basicStateReducer({}, { method: 'SetDocumentContent', params: { document: 'Hello World' } });9console.log(state);10const { basicStateReducer } = require('playwright/lib/server/frames');11const state = basicStateReducer({}, { method: 'SetDocumentContent', params: { document: 'Hello World' } });12console.log(state);13const { basicStateReducer } = require('playwright/lib/server/frames');14const state = basicStateReducer({}, { method: 'SetDocumentContent', params: { document: 'Hello World' } });15console.log(state);16const { basicStateReducer } = require('playwright/lib/server/frames');17const state = basicStateReducer({}, { method: 'SetDocumentContent', params: { document: 'Hello World' } });18console.log(state);19const { basicStateReducer } = require('playwright/lib/server/frames');20const state = basicStateReducer({}, { method: 'SetDocumentContent', params: { document: 'Hello World' } });21console.log(state);22const { basicStateReducer } = require('playwright/lib/server/frames');23const state = basicStateReducer({}, { method: 'SetDocumentContent', params: { document: 'Hello World' } });24console.log(state);25const { basicStateReducer } = require('playwright/lib/server/frames');
Using AI Code Generation
1const playwright = require('playwright');2const { basicStateReducer } = require('playwright/lib/server/browserContext');3const { chromium } = require('playwright');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 await basicStateReducer(page, {9 viewportSize: {10 }11 });12 await page.screenshot({ path: 'example.png' });13 await browser.close();14})();15const playwright = require('playwright');16const { basicStateReducer } = require('playwright/lib/server/browserContext');17const { chromium } = require('playwright');18(async () => {19 const browser = await chromium.launch();20 const context = await browser.newContext();21 await basicStateReducer(context, {22 viewportSize: {23 }24 });25 const page1 = await context.newPage();26 const page2 = await context.newPage();27 await page1.screenshot({ path: 'example1.png' });28 await page2.screenshot({ path: 'example2.png' });29 await browser.close();30})();
Jest + Playwright - Test callbacks of event-based DOM library
firefox browser does not start in playwright
Is it possible to get the selector from a locator object in playwright?
How to run a list of test suites in a single file concurrently in jest?
Running Playwright in Azure Function
firefox browser does not start in playwright
This question is quite close to a "need more focus" question. But let's try to give it some focus:
Does Playwright has access to the cPicker object on the page? Does it has access to the window object?
Yes, you can access both cPicker and the window object inside an evaluate call.
Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?
Exactly, or you can assign values to a javascript variable:
const cPicker = new ColorPicker({
onClickOutside(e){
},
onInput(color){
window['color'] = color;
},
onChange(color){
window['result'] = color;
}
})
And then
it('Should call all callbacks with correct arguments', async() => {
await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})
// Wait until the next frame
await page.evaluate(() => new Promise(requestAnimationFrame))
// Act
// Assert
const result = await page.evaluate(() => window['color']);
// Check the value
})
Check out the latest blogs from LambdaTest on this topic:
Native apps are developed specifically for one platform. Hence they are fast and deliver superior performance. They can be downloaded from various app stores and are not accessible through browsers.
One of the essential parts when performing automated UI testing, whether using Selenium or another framework, is identifying the correct web elements the tests will interact with. However, if the web elements are not located correctly, you might get NoSuchElementException in Selenium. This would cause a false negative result because we won’t get to the actual functionality check. Instead, our test will fail simply because it failed to interact with the correct element.
Smartphones have changed the way humans interact with technology. Be it travel, fitness, lifestyle, video games, or even services, it’s all just a few touches away (quite literally so). We only need to look at the growing throngs of smartphone or tablet users vs. desktop users to grasp this reality.
As part of one of my consulting efforts, I worked with a mid-sized company that was looking to move toward a more agile manner of developing software. As with any shift in work style, there is some bewilderment and, for some, considerable anxiety. People are being challenged to leave their comfort zones and embrace a continuously changing, dynamic working environment. And, dare I say it, testing may be the most ‘disturbed’ of the software roles in agile development.
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.
Get 100 minutes of automation test minutes FREE!!