How to use watchEffect method in Playwright Internal

Best JavaScript code snippet using playwright-internal

script.js

Source:script.js Github

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1const vueApp = Vue.createApp({2 data() {3 return {4 subPages: [5 {6 name: 'ComponentsInDepth',7 text: '深入組件',8 list: [9 { href: '/example/component', text: '組件' },10 { href: '/example/slot', text: '插槽' },11 { href: '/example/async-component', text: '異步組件 (基本)' },12 { href: '/example/async-component/await', text: '異步組件 (等待)' },13 { href: '/example/component-communication', text: '組件間通信' }14 ]15 },16 {17 name: 'Advanced_VueAndWebComponents',18 text: '高階指南 - Vue 與 Web 組件',19 list: [20 { href: '/example/custom-element', text: '在 Vue 中使用自訂元素（不跳過組件解析）' },21 { href: '/example/custom-element-with-options', text: '在 Vue 中使用自訂元素（跳過組件解析）' },22 { href: '/example/custom-element-with-options-and-properties', text: '在 Vue 中使用自訂元素（傳遞 DOM 屬性）' },23 { href: '/example/custom-element-built-with-vue', text: '使用 Vue 建構自訂元素' }24 ]25 },26 {27 name: 'Advanced_Reactivity',28 text: '高階指南 - 響應性 - 響應性基礎',29 list: [30 { href: '/example/reactivity/ref', text: '獨立的響應式值 - ref' },31 { href: '/example/reactivity/access-in-ref', text: '存取響應式物件' },32 { href: '/example/reactivity/destructuring-reactive-state', text: '響應式狀態解構' },33 { href: '/example/reactivity/prevent-mutating-reactive-objects', text: '防止更改響應式物件' }34 ]35 },36 {37 name: 'Advanced_ComputedAndWatch',38 text: '高階指南 - 響應性 - 響應式計算和監聽',39 list: [40 { href: '/example/computed', text: '計算值' },41 { href: '/example/watchEffect', text: 'watchEffect' },42 { href: '/example/watchEffect/effect-flush-timing', text: 'watchEffect - effect 的刷新時機' },43 { href: '/example/watch/single', text: 'watch - 監聽單個資料來源' },44 { href: '/example/watch/multiple', text: 'watch - 監聽多個資料來源' }45 ]46 }47 ]48 };49 }50});51vueApp.component('sub-page-group', {52 props: [ 'group' ],53 template:54 '<h3>{{ group.text }}</h3>' +55 '<ul>' +56 '<sub-page-list v-for="subPage in group.list"' +57 ' v-bind:href="subPage.href"' +58 ' v-bind:text="subPage.text"' +59 '></sub-page-list>' +60 '</ul>'61});62vueApp.component('sub-page-list', {63 props: [ 'href', 'text' ],64 template: '<li><a v-bind:href="href" target="_blank">{{ text }}</a>'65});...

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dev2.js

Source:dev2.js Github

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...36 effect();37 });38 }39}40function watchEffect(effect) {41 // 先把传进来的函数放入到 activeEffect 这个变量中42 activeEffect = effect;43 // 然后执行 watchEffect 里面的函数44 effect();45 // 最后把 activeEffect 置为空值46 activeEffect = null;47}48const targetToHashMap = new WeakMap();49function getDep(target, key) {50 let depMap = targetToHashMap.get(target);51 if (!depMap) {52 depMap = new Map();53 targetToHashMap.set(target, depMap);54 }55 let dep = depMap.get(key);56 if (!dep) {57 dep = new Dep(target[key]);58 depMap.set(key, dep);59 }60 return dep;61}62function reactive(obj) {63 return new Proxy(obj, {64 get(target, key) {65 const value = getDep(target, key).value;66 if (value && typeof value === "object") {67 return reactive(value);68 } else {69 return value;70 }71 },72 set(target, key, value) {73 getDep(target, key).value = value;74 }75 });76}77const state = reactive({78 count: 079});80watchEffect(() => {81 console.log(state.count);82}); // 0...

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reactive.js

Source:reactive.js Github

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...13 })14 }15}16let activeEffect = null;17function watchEffect(effect) {18 activeEffect = effect;19 effect();20 activeEffect = null;21}22// Map({key: value}): key是一个字符串23// WeakMap({key(对象): value}): key是一个对象, 弱引用24const targetMap = new WeakMap();25function getDep(target, key) {26 // 1.根据对象(target)取出对应的Map对象27 let depsMap = targetMap.get(target);28 if (!depsMap) {29 depsMap = new Map();30 targetMap.set(target, depsMap);31 }32 // 2.取出具体的dep对象33 let dep = depsMap.get(key);34 if (!dep) {35 dep = new Dep();36 depsMap.set(key, dep);37 }38 return dep;39}40// vue3对raw进行数据劫持41function reactive(raw) {42 return new Proxy(raw, {43 get(target, key) {44 const dep = getDep(target, key);45 dep.depend();46 return target[key];47 },48 set(target, key, newValue) {49 const dep = getDep(target, key);50 target[key] = newValue;51 dep.notify();52 }53 })54}55// const proxy = reactive({name: "123"})56// proxy.name = "321";57// // 测试代码58// const info = reactive({counter: 100, name: "why"});59// const foo = reactive({height: 1.88});60// // watchEffect161// watchEffect(function () {62// console.log("effect1:", info.counter * 2, info.name);63// })64// // watchEffect265// watchEffect(function () {66// console.log("effect2:", info.counter * info.counter);67// })68// // watchEffect369// watchEffect(function () {70// console.log("effect3:", info.counter + 10, info.name);71// })72// watchEffect(function () {73// console.log("effect4:", foo.height);74// })75// info.counter++;76// info.name = "why";...

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reactive_vue3实现.js

Source:reactive_vue3实现.js Github

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...13 })14 }15}16let activeEffect = null;17function watchEffect(effect) {18 activeEffect = effect;19 effect();20 activeEffect = null;21}22// Map({key: value}): key是一个字符串23// WeakMap({key(对象): value}): key是一个对象, 弱引用24const targetMap = new WeakMap();25function getDep(target, key) {26 // 1.根据对象(target)取出对应的Map对象27 let depsMap = targetMap.get(target);28 if (!depsMap) {29 depsMap = new Map();30 targetMap.set(target, depsMap);31 }32 // 2.取出具体的dep对象33 let dep = depsMap.get(key);34 if (!dep) {35 dep = new Dep();36 depsMap.set(key, dep);37 }38 return dep;39}40// vue3对raw进行数据劫持41function reactive(raw) {42 return new Proxy(raw, {43 get(target, key) {44 const dep = getDep(target, key);45 dep.depend();46 return target[key];47 },48 set(target, key, newValue) {49 const dep = getDep(target, key);50 target[key] = newValue;51 console.log('target', target)52 dep.notify();53 }54 })55}56// const proxy = reactive({name: "123"})57// proxy.name = "321";58// 测试代码59const info = reactive({counter: 100, name: "why"});60const foo = reactive({height: 1.88});61// watchEffect162watchEffect(function () {63 console.log("effect1:", info.counter * 2, info.name);64})65// watchEffect266watchEffect(function () {67 console.log("effect2:", info.counter * info.counter);68})69// watchEffect370watchEffect(function () {71 console.log("effect3:", info.counter + 10, info.name);72})73watchEffect(function () {74 console.log("effect4:", foo.height);75})76info.counter++;77info.name = "whyttt";...

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03_reactive_vue2实现.js

Source:03_reactive_vue2实现.js Github

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...13 })14 }15}16let activeEffect = null;17function watchEffect(effect) {18 activeEffect = effect;19 effect();20 activeEffect = null;21}22// Map({key: value}): key是一个字符串23// WeakMap({key(对象): value}): key是一个对象, 弱引用24const targetMap = new WeakMap();25function getDep(target, key) {26 // 1.根据对象(target)取出对应的Map对象27 let depsMap = targetMap.get(target);28 if (!depsMap) {29 depsMap = new Map();30 targetMap.set(target, depsMap);31 }32 // 2.取出具体的dep对象33 let dep = depsMap.get(key);34 if (!dep) {35 dep = new Dep();36 depsMap.set(key, dep);37 }38 return dep;39}40// vue2对raw进行数据劫持41function reactive(raw) {42 Object.keys(raw).forEach(key => {43 const dep = getDep(raw, key);44 let value = raw[key];45 Object.defineProperty(raw, key, {46 get() {47 dep.depend();48 return value;49 },50 set(newValue) {51 if (value !== newValue) {52 value = newValue;53 dep.notify();54 }55 }56 })57 })58 return raw;59}60// 测试代码61const info = reactive({counter: 100, name: "why"});62const foo = reactive({height: 1.88});63// watchEffect164watchEffect(function () {65 console.log("effect1:", info.counter * 2, info.name);66})67// watchEffect268watchEffect(function () {69 console.log("effect2:", info.counter * info.counter);70})71// watchEffect372watchEffect(function () {73 console.log("effect3:", info.counter + 10, info.name);74})75watchEffect(function () {76 console.log("effect4:", foo.height);77})78// info.counter++;79info.name = "why";...

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main5.js

Source:main5.js Github

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2//每次准备取出第一个宏任务执行前, 都要将所有的微任务一个一个取出来执行，也就是优先级比宏任务高，且与微任务所处的代码位置无关3const state = reactive({4 count:05})6watchEffect(() => {7 console.log("wtchEffect", state.count)8})9watch(10 () => state.count,11 (count, oldCount) => {12 console.log("watch", count, oldCount)13 }14)15console.log("start")16setTimeout(() => {17 console.log("time out")18 state.count++19 state.count++20})...

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watchEffect.js

Source:watchEffect.js Github

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2 const { ref, computed, watch, watchEffect, } = Vue;3 const suite = new Benchmark.Suite();4 bench(() => {5 return suite.add("create watchEffect", () => {6 const we = watchEffect(() => {7 });8 });9 });10 bench(() => {11 let c = 0;12 const v = ref(100);13 const w = watchEffect(v, (v) => {14 const v2 = v.value;15 });16 let i = 0;17 return suite.add("update ref to trigger watchEffect (scheduled but not executed)", () => {18 v.value = i++;19 });20 })21 bench(() => {22 let c = 0;23 const v = ref(100);24 const w = watchEffect(v, (v) => {25 const v2 = v.value;26 });27 let i = 0;28 return suite.add("update ref to trigger watchEffect (executed)", function(deferred) {29 v.value = i++;30 Vue.nextTick(() => deferred.resolve());31 }, { defer: true });32 })33 return suite;...

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useCamera.js

Source:useCamera.js Github

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...5 lookAt: { x:0, y:0, z:0 },6 position: { x:10, y:10, z:10 }7})8const camera = new THREE.PerspectiveCamera()9watchEffect(() => {10 camera.fov = state.fov11})12watchEffect(() => {13 camera.position.x = state.position.x14 camera.position.y = state.position.y15 camera.position.z = state.position.z16})17watchEffect(() => {18 camera.lookAt(state.lookAt.x, state.lookAt.y, state.lookAt.z)19})20export default {21 camera,22 ...toRefs(state)...

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Using AI Code Generation

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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.click('input[name="q"]');7 await page.fill('input[name="q"]', 'playwright');8 await page.press('input[name="q"]', 'Enter');9 await page.close();10 await context.close();11 await browser.close();12})();

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Using AI Code Generation

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1const { chromium } = require("playwright");2(async () => {3 const browser = await chromium.launch({ headless: false });4 const page = await browser.newPage();5 await page.fill("input[type=text]", "Playwright");6 await page.keyboard.press("Enter");7 await page.waitForNavigation();8 await page.screenshot({ path: "google-playwright.png" });9 await browser.close();10})();11const { chromium } = require("playwright");12(async () => {13 const browser = await chromium.launch({ headless: false });14 const page = await browser.newPage();15 page.on("dialog", (dialog) => {16 console.log(dialog.message());17 dialog.accept();18 });19 await page.click("button[onclick='jsAlert()']");20 await browser.close();21})();

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Using AI Code Generation

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1const { test } = require('@playwright/test');2test('example test', async ({ page }) => {3 await page.click('text=Get started');4 await page.click('text=Docs');5 await page.click('text=API');6 await page.click('text=Selectors');7 await page.click('te

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Using AI Code Generation

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1const { test, expect } = require('@playwright/test');2test('test', async ({ page }) => {3 await page.click('text=Docs');4 await page.click('text=API');5 await page.click('text=Page');6 await page.click('text=page.$eval');7 await page.click('text=Parameters');8 await page.click('text=page.$eval');9 await page.click('text=Parameters');10 await page.click('text=page.$eval');11 await page.click('text=Parameters');12 await page.click('text=page.$eval');13 await page.click('text=Parameters');14 await page.click('text=page.$eval');15 await page.click('text=Parameters');16 await page.click('text=page.$eval');17 await page.click('text=Parameters');18 await page.click('text=page.$eval');19 await page.click('text=Parameters');20 await page.click('text=page.$eval');21 await page.click('text=Parameters');22 await page.click('text=page.$eval');23 await page.click('text=Parameters');24 await page.click('text=page.$eval');25 await page.click('text=Parameters');26});

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Using AI Code Generation

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1const { test, expect } = require('@playwright/test');2test('example test', async ({ page }) => {3 await page.click('text=Get started');4 await page.waitForLoadState('networkidle');5 await page.click('text=Docs');6 await page.waitForLoadState('networkidle');7 await page.click('text=API');8 await page.waitForLoadState('networkidle');9 await page.click('text=Page');10 await page.waitForLoadState('networkidle');11 await page.click('text=page.waitForLoadState');12 await page.waitForLoadState('networkidle');13 await page.click('text=Example');

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Using AI Code Generation

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1const { test, expect } = require('@playwright/test');2const { watchEffect, waitForFunction } = require('@playwright/test/lib/internal/inspectorHelper');3test('Test 1', async ({ page }) => {4 await watchEffect(async () => {5 await page.click('text=Get Started');6 });7 await expect(page.locator('text=Language bindings')).toBeVisible();8});9const { test, expect } = require('@playwright/test');10const { watchEffect, waitForFunction } = require('@playwright/test/lib/internal/inspectorHelper');11test('Test 1', async ({ page }) => {12 await watchEffect(async () => {13 await page.click('text=Get Started');14 });15 await expect(page.locator('text=Language bindings')).toBeVisible();16});17const { test, expect } = require('@playwright/test');18const { watchEffect, waitForFunction } = require('@playwright/test/lib/internal/inspectorHelper');19test('Test 1', async ({ page }) => {20 await watchEffect(async () => {21 await page.click('text=Get Started');22 });23 await expect(page.locator('text=Language bindings')).toBeVisible();24});

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch({4 headless: process.argv.includes('--headless'),5 slowMo: process.argv.includes('--slowMo') ? 100 : 0,6 devtools: process.argv.includes('--devtools'),7 });8 const context = await browser.newContext();9 const page = await context.newPage();10 page.on('request', (request) => {11 console.log('>>>', request.method(), request.url());12 });13 page.on('response', (response) => {14 console.log('<<<', response.status(), response.url());15 });16 page.on('console', (msg) => {17 console.log('>>>', msg.text());18 });19 await page.click('text=Get started');20 await page.click('text=Docs');21 await page.click('text=API');22 await page.click('text=Page');23 await page.click('text=page.on');24 await page.click('text=page.route');25 await page.click('text=page.evaluate');26 await page.click('text=page.fill');27 await page.click('text=page.waitForSelector');28 await page.click('text=page.waitForTimeout');29 await page.click('text=page.waitForRequest');30 await page.click('text=page.waitForResponse');31 await page.click('text=page.waitForFunction');32 await page.click('text=page.close');33 await page.click('text=page.setContent');34 await page.click('text=page.waitForLoadState');35 await page.click('text=page.waitForNavigation');36 await page.click('text=page.waitForEvent');37 await page.click('text=page.click');38 await page.click('text=page.dblclick');39 await page.click('text=page.tap');40 await page.click('text=page.hover');41 await page.click('text=page.selectOption');42 await page.click('text=page.setInputFiles');43 await page.click('text=page.type');44 await page.click('text=page.press');45 await page.click('text=page.$');46 await page.click('text=page.$$

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Playwright tutorial

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