Best JavaScript code snippet using playwright-internal
Watcher.js
Source: Watcher.js
1// class Watcher {2// constructor(vm, exp, callback) {3// this.vm = vm;4// this.exp = exp;5// this.callback = callback;6// // æ´æ¹åçå¼7// this.value = this.get();8// }9// get() {10// // å°å½åç watcher æ·»å å° Dep ç±»çéæå±æ§ä¸11// Dep.target = this;12// // è·åå¼è§¦åæ°æ®å«æ13// console.log(this.exp,'Watcher-----')14// let value = CompileUtil.getVal(this.vm, this.exp);15// // æ¸
空 Dep ä¸ç Watcherï¼é²æ¢éå¤æ·»å 16// Dep.target = null;17// return value;18// }19// update() {20// // è·åæ°å¼21// let newValue = CompileUtil.getVal(this.vm, this.exp);22// // è·åæ§å¼23// let oldValue = this.value;24// // å¦ææ°å¼åæ§å¼ä¸ç¸çï¼å°±æ§è¡ callback 对 dom è¿è¡æ´æ°25// if(newValue !== oldValue) {26// this.callback(newValue);27// }28// }29// }30// ç¨reactævue å®ç°ä¸ä¸ªå页ç»ä»¶31// è¦æ±ï¼32// éè¦æ¯æ两ç§æ¨¡å¼ï¼æ»æ°å·²ç¥ï¼æ尾页ï¼åæ»æ°æªç¥ï¼åªæä¸ä¸é¡µåä¸ä¸é¡µï¼33// ç»ä»¶æ¯æå
é¨ç´æ¥è·³è½¬å°ç®æ 页34// ç»ä»¶æ¯æå¤é¨è·³è½¬å°ç®æ 页35// ç»ä»¶æ¥æä¿®æ¹æ¯é¡µæ°éçä¸ææ¡36// ç»ä»¶æ ·å¼å¯ä»¥æ¯æèªå®ä¹37// ç¹å»æ¯ä¸ªæé®é½éè¦æåè°38// å°½å¯è½å°åå°æ¥å
¥æ¹çæ¥å
¥ææ¬39let uid = 0;40class Watcher {41 constructor (vm, exp, callback) {42 this.id = ++uid;43 this.vm = vm;44 this.exp = exp;45 this.callback = callback;46 // æ´æ¹åçå¼47 this.value = this.get();48 }49 get() {50 // å°å½åç watcher æ·»å å° Dep ç±»çéæå±æ§ä¸51 Dep.target = this;52 // è·åå¼è§¦åæ°æ®å«æ53 console.log(this.exp,'Watcher-----')54 let value = CompileUtil.getVal(this.vm, this.exp);55 // æ¸
空 Dep ä¸ç Watcherï¼é²æ¢éå¤æ·»å 56 Dep.target = null;57 return value;58 }59 update () {60 console.log('watch' + this.id + ' update');61 // 1. å¤æ has {} æ¯å¦ å
å«è¿ä¸ª watch.id62 // 2. æ watch push è¿ queue æ°ç»63 // 3. nextTick(flushSchedulerQueue) è¿è¡ æ¹é æ´æ°64 // 4. nextTick(cb) -> callbacks.push(cb) -> setTimeout(flushCallbacks, 0)65 // 5. flushCallbacks() -> æ·±æ·è´ callbacks[] å¾å° copies -> copies[i]() (cb å¼å§æ§è¡) 66 // 6. flushSchedulerQueue å¾ªç¯ queue éå -> æ¾å°æ¯ä¸ª watch -> æ¾å° watch.id -> æ¸
空 has[id] = null -> æ§è¡ watch.run()67 queueWatcher(this);68 }69 run () {70 console.log('watch' + this.id + 'è§å¾æ´æ°å¦ï½');71 let newValue = CompileUtil.getVal(this.vm, this.exp);72 // è·åæ§å¼73 let oldValue = this.value;74 // å¦ææ°å¼åæ§å¼ä¸ç¸çï¼å°±æ§è¡ callback 对 dom è¿è¡æ´æ°75 if(newValue !== oldValue) {76 this.callback(newValue);77 }78 }79}80let callbacks = []; // åæ¾ æ¹é æ´æ°å½æ° flushSchedulerQueue81let pending = false;82function nextTick (cb) {83 callbacks.push(cb);84 console.log(queue,'queue111')85 if (!pending) {86 pending = true;87 console.log(queue,'queue22')88 setTimeout(flushCallbacks, 0);89 }90}91function flushCallbacks () {92 console.log(queue,'queue333')93 pending = false;94 // å¤å¶ callbacks(åæ¾ æ¹é æ´æ°å½æ° flushSchedulerQueue) æ°ç»95 const copies = callbacks.slice(0);96 callbacks.length = 0;97 for (let i = 0; i < copies.length; i++) {98 console.log(i,'flushCallbacks ç i')99 copies[i]();100 }101}102let has = {}; // æ è¯è¿ä¸ª watch æ没æ被 queue push è¿å»103let queue = []; // åæ¾ watch çæ°ç»104let waiting = false;105function queueWatcher(watcher) {106 const id = watcher.id;107 if (has[id] == null) {108 has[id] = true;109 queue.push(watcher);110 if (!waiting) {111 waiting = true;112 // nextTickæ¯Vueå®ç°ç微任å¡æºå¶ï¼å¨ä¸æ¯æ微任å¡çæ
åµä¸ï¼åéå°å®ä»»å¡ï¼,flushSchedulerQueue åæ¯ç¨æ¥æ§è¡queueä¸çè§å¯è
,并æ¸
空queue113 nextTick(flushSchedulerQueue); 114 }115 }116}117function flushSchedulerQueue () {118 let watcher, id;119 for (index = 0; index < queue.length; index++) {120 console.log(index,'flushSchedulerQueue ç index')121 watcher = queue[index]122 id = watcher.id;123 has[id] = null;124 watcher.run();125 }126 waiting = false;127}128/**129 * https://juejin.im/post/5c204ce36fb9a049d975363d130 * 131 * vue 解æ...
schedular.js
Source: schedular.js
...9import { nextTick } from "../utils"10let queue = []11let has = {} // ååè¡¨ç»´æ¤ åæ¾äºåªäºwatcher12let pedding = false13function flushSchedulerQueue() {14 queue.forEach(item => {15 item.run()16 })17 queue = []18 has = {}19 pedding = false20}21// åä¸ä¸ªwatcher22// å¤æ¬¡depä¿®æ¹åªä¼æ§è¡æ´æ°ä¸æ¬¡23export function queueWacther(watcher) { // å½åæ§è¡æ ä¸ä»£ç æ§è¡å®æ¯åï¼ä¼å
æ¸
空微任å¡ï¼åæ¸
空å®ä»»å¡ï¼æå¸ææ´æ©ç渲æ24 const id = watcher.id25 // console.log(watcher, 'watcher')26 if(!has[id]) {27 queue.push(watcher)...
scheduler.js
Source: scheduler.js
1import { nextTick } from "../utils"2let queue = []3let has = {} // å watcher ç»´æ¤4let pedding = false5function flushSchedulerQueue() {6 for (let i = 0; i < queue.length; i++) {7 queue[i].run()8 }9 queue = []10 has = {}11 pedding = false12}13export function queueWatcher(watcher) {14 const {15 id16 } = watcher17 if (!has[id]) {18 has[id] = true19 queue.push(watcher)...
schduler.js
Source: schduler.js
...9 queue.push(watcher)10 has[id] = true11 // å¼å¯å¼æ¥ï¼ä¼çå¾
ææåæ¥ååæ§è¡12 // setTimeout(() => {13 // flushSchedulerQueue()14 // }, 0)15 if (!pending) {16 nextTick(flushSchedulerQueue)17 pending = true18 }19 }20}21export function flushSchedulerQueue () {22 queue.forEach(watcher =>{23 watcher.run()24 if (!watcher.user) {25 watcher.cb()26 }27 });...
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch({ headless: false });4 const page = await browser.newPage();5 await page.click('text=Get started');6 await page.click('text=Docs');7 await page.click('text=API');8 await page.click('text=Browser
Using AI Code Generation
1const { flushSchedulerQueue } = require('playwright/lib/server/browserContext');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await flushSchedulerQueue();8 await browser.close();9})();10I have tried to use flushSchedulerQueue() after browser.close() and page.close() and context.close
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3const browser = await playwright.chromium.launch({headless:false});4const context = await browser.newContext();5const page = await context.newPage();6await page.type('input[name="q"]', 'Hello World');7await page.keyboard.press('Enter');8await page.waitForNavigation();9await browser.close();10})();11const playwright = require('playwright');12(async () => {13const browser = await playwright.chromium.launch({headless:true});14const context = await browser.newContext();15const page = await context.newPage();16await page.type('input[name="q"]', 'Hello World');17await page.keyboard.press('Enter');18await page.waitForNavigation();19await browser.close();20})();
Using AI Code Generation
1const { flushSchedulerQueue } = require('playwright/lib/utils/progress');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await flushSchedulerQueue();8 await page.screenshot({ path: 'google.png' });9 await browser.close();10})();11const { chromium } = require('playwright');12(async () => {13 const browser = await chromium.launch();14 const context = await browser.newContext();15 const page = await context.newPage();16 await page.waitForLoadState('load');17 await page.screenshot({ path: 'google.png' });18 await browser.close();19})();
Using AI Code Generation
1const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');2await flushSchedulerQueue();3const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');4await flushSchedulerQueue();5const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');6await flushSchedulerQueue();7const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');8await flushSchedulerQueue();9const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');10await flushSchedulerQueue();11const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');12await flushSchedulerQueue();13const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');14await flushSchedulerQueue();15const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');16await flushSchedulerQueue();17const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');18await flushSchedulerQueue();19const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');20await flushSchedulerQueue();21const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');22await flushSchedulerQueue();23const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');24await flushSchedulerQueue();25const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');26await flushSchedulerQueue();27const { flushSchedulerQueue } = require('playwright/lib/server/scheduler');28await flushSchedulerQueue();29const { flushSchedulerQueue } =
Using AI Code Generation
1const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');2flushSchedulerQueue();3const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');4flushSchedulerQueue();5const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');6flushSchedulerQueue();7const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');8flushSchedulerQueue();9const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');10flushSchedulerQueue();11const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');12flushSchedulerQueue();13const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');14flushSchedulerQueue();15const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');16flushSchedulerQueue();17const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');18flushSchedulerQueue();19const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');20flushSchedulerQueue();21const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');22flushSchedulerQueue();23const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');24flushSchedulerQueue();
Using AI Code Generation
1const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement');2flushSchedulerQueue();3module.exports = { flushSchedulerQueue };4const { flushSchedulerQueue } = require('./test');5flushSchedulerQueue();6module.exports = { flushSchedulerQueue };7const { flushSchedulerQueue } = require('./test');8flushSchedulerQueue();9module.exports = { flushSchedulerQueue };10const { flushSchedulerQueue } = require('./test');11flushSchedulerQueue();12module.exports = { flushSchedulerQueue };13const { flushSchedulerQueue } = require('./test');14flushSchedulerQueue();
Using AI Code Generation
1const { flushSchedulerQueue } = require('playwright/lib/server/frames');2(async () => {3 await flushSchedulerQueue();4})();5const { flushSchedulerQueue } = require('playwright/lib/server/frames');6(async () => {7 await flushSchedulerQueue();8})();9const { flushSchedulerQueue } = require('playwright/lib/server/frames');10(async () => {11 await flushSchedulerQueue();12})();13const { flushSchedulerQueue } = require('playwright/lib/server/frames');14(async () => {15 await flushSchedulerQueue();16})();17const { flushSchedulerQueue } = require('playwright/lib/server/frames');18(async () => {19 await flushSchedulerQueue();20})();21const { flushSchedulerQueue } = require('playwright/lib/server/frames');22(async () => {23 await flushSchedulerQueue();24})();25const { flushSchedulerQueue } = require('playwright/lib/server/frames');26(async () => {27 await flushSchedulerQueue();28})();29const { flushSchedulerQueue } = require('playwright/lib/server/frames');30(async () => {31 await flushSchedulerQueue();32})();33const { flushSchedulerQueue } = require('playwright/lib/server/frames');34(async () => {35 await flushSchedulerQueue();36})();37const { flushSchedulerQueue } = require('playwright/lib/server/frames');38(async () => {39 await flushSchedulerQueue();40})();41const { flushSchedulerQueue } = require('playwright/lib/server/frames');42(async () => {43 await flushSchedulerQueue();44})();
Using AI Code Generation
1const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');2flushSchedulerQueue();3const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');4flushSchedulerQueue();5const { flushSchedulerQueue } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');6flushSchedulerQueue();
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!!