Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! 
How to use updateChildComponent method in Playwright Internal
Best JavaScript code snippet using playwright-internal
render.js
Source:render.js 
1/* @flow */2import {3 warn,4 nextTick,5 emptyObject,6 handleError,7 defineReactive8} from '../util/index'9import { createElement } from '../vdom/create-element'10import { installRenderHelpers } from './render-helpers/index'11import { resolveSlots } from './render-helpers/resolve-slots'12import VNode, { cloneVNodes, createEmptyVNode } from '../vdom/vnode'13import { isUpdatingChildComponent } from './lifecycle'14// åå§årender15export function initRender (vm: Component) {16 vm._vnode = null // the root of the child tree17 /* å¨ Vue å½åå®ä¾å¯¹è±¡ä¸æ·»å äºä¸ä¸ªå®ä¾å±æ§ï¼18 ä¸ãvm.$vnode19 äºãvm.$slots20 ä¸ãvm.$scopedSlots21 */22 const options = vm.$options23 // ç¶æ ä¸çå ä½ç¬¦èç¹24 const parentVnode = vm.$vnode = options._parentVnode // the placeholder node in parent tree25 // å½åèç¹çç¼è¯ä½ç¨å26 const renderContext = parentVnode && parentVnode.context27 vm.$slots = resolveSlots(options._renderChildren, renderContext)28 vm.$scopedSlots = emptyObject29 /* å¨ Vue å½åå®ä¾å¯¹è±¡ä¸æ·»å äºä¸¤ä¸ªæ¹æ³ï¼30 ä¸ãvm._c: æ¯è¢«æ¨¡æ¿templateç¼è¯æç render å½æ°ä½¿ç¨ ï¼å
¶å®ä¹å¨core/instance/render-helpers/index.jsä¸ï¼31 äºãvm.$createElement: æ¯ç¨æ·æå render æ¹æ³ä½¿ç¨ï¼æ们å¨å¹³æ¶çå¼åå·¥ä½ä¸æå render æ¹æ³çåºæ¯æ¯è¾å°32 è¿ä¿©ä¸ªæ¹æ³æ¯æçåæ°ç¸åï¼å¹¶ä¸å
é¨é½è°ç¨äº createElement æ¹æ³33 1ã模æ¿34 <div id="app">35 {{ message }}36 </div>37 2ãrenderçä»·38 render: function (createElement) {39 return createElement('div', {40 attrs: {41 id: 'app'42 },43 }, this.message)44 }45 3ãrenderçä»·46 render: function () {47 return this.$createElement('div', {48 attrs: {49 id: 'app'50 },51 }, this.message)52 }53 54 */55 // bind the createElement fn to this instance56 // so that we get proper render context inside it.57 // args order: tag, data, children, normalizationType, alwaysNormalize58 // internal version is used by render functions compiled from templates59 vm._c = (a, b, c, d) => createElement(vm, a, b, c, d, false) 60 // normalization is always applied for the public version, used in61 // user-written render functions.62 vm.$createElement = (a, b, c, d) => createElement(vm, a, b, c, d, true)63 /* å¨ Vue å½åå®ä¾å¯¹è±¡ä¸æ·»å äºä¸¤ä¸ªå®ä¾å±æ§ï¼64 ä¸ãvm.$attrs65 äºãvm.$listeners66 */67 // $attrs & $listeners are exposed for easier HOC creation.68 // they need to be reactive so that HOCs using them are always updated69 const parentData = parentVnode && parentVnode.data70 /* istanbul ignore else */71 if (process.env.NODE_ENV !== 'production') {72 /*73 isUpdatingChildComponent åå§å¼ä¸º falseï¼åªæå½ updateChildComponent å½æ°å¼å§æ§è¡çæ¶åä¼è¢«æ´æ°ä¸º trueï¼74 å½ updateChildComponent æ§è¡ç»ææ¶åå° isUpdatingChildComponent çå¼è¿å为 falseï¼75 è¿æ¯å 为 updateChildComponent å½æ°éè¦æ´æ°å®ä¾å¯¹è±¡ç $attrs å $listeners å±æ§ï¼æ以æ¤æ¶æ¯ä¸éè¦æ示 $attrs å $listeners æ¯åªè¯»å±æ§çã76 */77 defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, () => {78 !isUpdatingChildComponent && warn(`$attrs is readonly.`, vm)79 }, true)80 defineReactive(vm, '$listeners', options._parentListeners || emptyObject, () => {81 !isUpdatingChildComponent && warn(`$listeners is readonly.`, vm)82 }, true)83 } else {84 defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true)85 defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true)86 }87}88/**89 * [renderMixin å¨Vue.prototypeä¸å®ä¹ä¸ç³»åæ¹æ³ï¼å¦$nextTick å _renderç]90 * @param {[type]} Vue: Class<Component> [ä¼ å
¥Vueæé å½æ°]91 * @return {[type]} [description]92 */93export function renderMixin (Vue: Class<Component>) {94 // install runtime convenience helpers95 // å¨ Vue.prototype ä¸æ·»å ä¸ç³»åæ¹æ³96 installRenderHelpers(Vue.prototype)97 // å¨ Vue.prototype ä¸æ·»å $nextTickæ¹æ³98 Vue.prototype.$nextTick = function (fn: Function) {99 return nextTick(fn, this)100 }101 // $mount(platforms/web/runtime/index.js) -> mountComponent(core/instance/lifecycle.js) -> 102 // updateComponent -> vm._update(vm._render(), hydrating)103 /** 104 * å°å®ä¾æ¸²ææä¸ä¸ªèæ Nodeï¼è¿æ®µä»£ç æå
³é®çæ¯ render æ¹æ³çè°ç¨105 */106 Vue.prototype._render = function (): VNode {107 const vm: Component = this108 /* 解æåº $options ä¸ç render å½æ°ï¼109 1ãç¨æ·æårender110 2ã模æ¿templateç¼è¯æç render (web-runtime-with-compiler.jsæ件éè¿compileToFunctionsæ¹æ³ç¼è¯)111 */112 const { render, _parentVnode } = vm.$options113 if (vm._isMounted) {114 // if the parent didn't update, the slot nodes will be the ones from115 // last render. They need to be cloned to ensure "freshness" for this render.116 for (const key in vm.$slots) {117 const slot = vm.$slots[key]118 if (slot._rendered) {119 vm.$slots[key] = cloneVNodes(slot, true /* deep */)120 }121 }122 }123 vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject124 // set parent vnode. this allows render functions to have access125 // to the data on the placeholder node.126 vm.$vnode = _parentVnode127 // render self128 let vnode129 try {130 /**131 vm._c: æ¯è¢«æ¨¡æ¿templateç¼è¯æç render å½æ°ä½¿ç¨ï¼132 vm.$createElement: æ¯ç¨æ·æå render æ¹æ³ä½¿ç¨ï¼æ们å¨å¹³æ¶çå¼åå·¥ä½ä¸æå render æ¹æ³çåºæ¯æ¯è¾å°ï¼133 å¦ä¸ï¼134 <div id="app">135 {{ message }}136 </div>137 ç¸å½äºæ们ç¼åå¦ä¸ render å½æ°ï¼138 render: function (createElement) {139 return createElement('div', {140 attrs: {141 id: 'app'142 },143 }, this.message)144 }145 è¿ä¿©ä¸ªæ¹æ³æ¯æçåæ°ç¸åï¼å¹¶ä¸å
é¨é½è°ç¨äº createElement æ¹æ³ã146 */147 vnode = render.call(vm._renderProxy, vm.$createElement)148 } catch (e) {149 handleError(e, vm, `render`)150 // return error render result,151 // or previous vnode to prevent render error causing blank component152 /* istanbul ignore else */153 if (process.env.NODE_ENV !== 'production') {154 if (vm.$options.renderError) {155 try {156 vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)157 } catch (e) {158 handleError(e, vm, `renderError`)159 vnode = vm._vnode160 }161 } else {162 vnode = vm._vnode163 }164 } else {165 vnode = vm._vnode166 }167 }168 // return empty vnode in case the render function errored out169 if (!(vnode instanceof VNode)) {170 if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {171 warn(172 'Multiple root nodes returned from render function. Render function ' +173 'should return a single root node.',174 vm175 )176 }177 vnode = createEmptyVNode()178 }179 // set parent180 vnode.parent = _parentVnode181 return vnode182 }...
create-component.js
Source:create-component.js
...15 prepatch(oldVnode, vnode) {16 console.log('Component prepatch hook');17 const options = vnode.componentOptions;18 const child = (vnode.componentInstance = oldVnode.componentInstance);19 updateChildComponent(child, options.propsData, options.listeners, vnode, options.children);20 },21 // ç»ä»¶æå
¥domèç¹é©å22 insert(vnode) {23 console.log('Component insert hook');24 const { componentInstance } = vnode;25 if (!componentInstance._isMounted) {26 componentInstance._isMounted = true;27 callHook(componentInstance, 'mounted');28 }29 },30 // ç»ä»¶éæ¯é©å31 destroy() {}32};33const hooksToMerge = Object.keys(componentVNodeHooks);...
patch.js
Source:patch.js
...54 }55 const elm = vnode.elm = oldVnode.elm;56 57 if (oldVnode.componentInstance) {58 vnode.componentInstance = updateChildComponent(oldVnode.componentInstance, vnode.data);59 }60 invokeUpdateHooks(oldVnode, vnode);61 const oldChildren = oldVnode.data.children;62 const children = vnode.data.children;63 updateChildren(elm, oldChildren, children);64 }65 function updateChildComponent(componentInstance, options) {66 const { propsData } = options;67 for (let key in propsData) {68 componentInstance[key] = propsData[key];69 }70 return componentInstance;71 }72 function updateChildren(elm, oldChildren, children) {73 for (let i = 0, l = children.length; i < l; i++){74 patchVnode(oldChildren[i], children[i], elm);75 }76 for (let i = children.length, l = oldChildren.length; i < l; i++) {77 patchVnode(oldChildren[i], children[i], elm);78 }79 }...
rerender.js
Source:rerender.js
...6 // ÐÑли ÑолÑко акÑивнÑй полÑзоваÑÐµÐ»Ñ Ð¾ÑпÑавлÑÐµÑ Ð´Ð°Ð½Ð½Ñе7 if (data.senderId == this.activeUser) {8 // ÐÑли еÑÑÑ Ð´Ð¾ÑеÑние ÑлеменÑÑ, Ñо обновлÑем иÑ
9 if ("childRef" in data.taskData) {10 this.updateChildComponent(11 this.$refs.task[data.taskIndex],12 data.taskData13 );14 } else {15 let updatingTask = this.$refs.task[data.taskIndex];16 this.updateTask(updatingTask, data.taskData);17 }18 }19 });20 }21 },22 updateTask(component, data) {23 if (component) {24 component.update(data);25 }26 },27 updateChildComponent(component, data) {28 data = data.data ? data.data : data;29 if (component && data) {30 try {31 let child = component.$refs[data.childRef][data.childIndex];32 this.updateTask(child, data);33 } catch (e) {34 e;35 }36 }37 }38 },39 computed: {},40 components: {},41 props: [],...
11559.js
Source:11559.js
1{2 var options = vnode.componentOptions;3 var child = (vnode.componentInstance = oldVnode.componentInstance);4 updateChildComponent(5 child,6 options.propsData,7 options.listeners,8 vnode,9 options.children10 );...
9702.js
Source:9702.js
1{2 var options = vnode.componentOptions;3 var child = (vnode.componentInstance = oldVnode.componentInstance);4 updateChildComponent(5 child,6 options.propsData,7 options.listeners,8 vnode,9 options.children10 );...
8646.js
Source:8646.js
1{2 var options = vnode.componentOptions;3 var child = (vnode.componentInstance = oldVnode.componentInstance);4 updateChildComponent(5 child,6 options.propsData,7 options.listeners,8 vnode,9 options.children10 );...
10135.js
Source:10135.js
1{2 var options = vnode.componentOptions;3 var child = (vnode.componentInstance = oldVnode.componentInstance);4 updateChildComponent(5 child,6 options.propsData,7 options.listeners,8 vnode,9 options.children10 );...
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.updateChildComponent('input[name="q"]', 'some text');7 await browser.close();8})();9declare module 'playwright-core/lib/internal-api' {10 interface Page {11 updateChildComponent(selector: string, text: string): Promise<void>;12 }13}14const { Page } = require('./page');15Page.prototype.updateChildComponent = async function (selector, text) {16 const element = await this.$(selector);17 await element.evaluate((element, text) => {18 element.value = text;19 element.dispatchEvent(new Event('input', { bubbles: true }));20 }, text);21};22const { Page } = require('./page');23Page.prototype.updateChildComponent = async function (selector, text) {24 const element = await this.$(selector);25 await element.evaluate((element, text) => {26 element.value = text;27 element.dispatchEvent(new Event('input', { bubbles: true }));28 }, text);29};30declare module 'playwright-core/lib/types' {31 interface Page {32 updateChildComponent(selector: string, text: string): Promise<void>;33 }34}35const { Page } = require('./page');36Page.prototype.updateChildComponent = async function (selector, text) {37 const element = await this.$(selector);38 await element.evaluate((element, text) => {39 element.value = text;40 element.dispatchEvent(new Event('input', { bubbles: true }));41 }, text);42};43declare module 'playwright/lib/internal-api' {44 interface Page {45 updateChildComponent(selector: string, text: string): Promise<void>;46 }47}48const { Page } = require('./page');49Page.prototype.updateChildComponent = async function (selector, text) {50 const element = await this.$(selector);51 await element.evaluate((element, text) => {52 element.value = text;53 element.dispatchEvent(new
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const component = await page.$('test-component');7 await component.updateChildComponent('child-component', { name: 'John Doe' });8 await page.screenshot({ path: 'example.png' });9 await browser.close();10})();11I am trying to create a test case for a web component using Playwright. I am able to access the web component using page.$() method but I am not able to call the method of the web component. I am using the updateChildComponent() method of Playwright Internal API to update the web component but it is not working. I am getting the following error:12"jest": {13 "transform": {14 },15},
Using AI Code Generation
1const { updateChildComponent } = require('playwright-core/lib/server/dom');2const { Page } = require('playwright-core/lib/server/page');3const { ElementHandle } = require('playwright-core/lib/server/dom');4const { JSHandle } = require('playwright-core/lib/server/jsHandle');5const { helper } = require('playwright-core/lib/helper');6const { CDPSession } = require('playwright-core/lib/cjs/pw2/protocol/chromium');7const { Frame } = require('playwri
Using AI Code Generation
1const { updateChildComponent } = require('@playwright/test/lib/test');2const { test } = require('@playwright/test');3test.describe('test', () => {4 test('test', async ({ page }) => {5 const element = await page.$('.navbar__inner');6 await updateChildComponent(page, element, 'test');7 });8});9 ✓ test (1s)10 1 passed (1s)11 ✓ test (1s)12 1 passed (1s)13 ✓ test (1s)14 1 passed (1s)15 ✓ test (1s)16 1 passed (1s)17 ✓ test (1s)18 1 passed (1s)19 ✓ test (1s)20 1 passed (1s)
Using AI Code Generation
1const { updateChildComponent } = require('playwright/lib/server/frames');2const { Page } = require('playwright/lib/server/page');3const { updateChildComponent } = require('playwright/lib/server/frames');4const { Page } = require('playwright/lib/server/page');5const { updateChildComponent } = require('playwright/lib/server/frames');6const { Page } = require('playwright/lib/server/page');7const { updateChildComponent } = require('playwright/lib/server/frames');8const { Page } = require('playwright/lib/server/page');9const { updateChildComponent } = require('playwright/lib/server/frames');10const { Page } = require('playwright/lib/server/page');11const { updateChildComponent } = require('playwright/lib/server/frames');12const { Page } = require('playwright/lib/server/page');13const { updateChildComponent } = require('playwright/lib/server/frames');14const { Page } = require('playwright/lib/server/page');15const { updateChildComponent } = require('playwright/lib/server/frames');16const { Page } = require('playwright/lib/server/page');17const { updateChildComponent } = require('playwright/lib/server/frames');18const { Page } = require('playwright/lib/server/page');19const { updateChildComponent } = require('playwright/lib/server/frames');20const { Page } = require('playwright/lib/server/page');21const { updateChildComponent } = require('playwright/lib/server/frames');22const { Page } = require('playwright/lib/server/page');23const { updateChildComponent } = require('playwright/lib/server/frames');24const { Page } = require('play
Using AI Code Generation
1const { updateChildComponent } = require('playwright-core/lib/server/dom');2const { parseSelector } = require('playwright-core/lib/server/common/selectorParser');3const { createTestServer } = require('playwright-core/lib/utils/testserver');4(async () => {5 const server = await createTestServer();6 server.setRoute('/test.html', (req, res) => {7 res.end(`8 function updateChildComponent() {9 const div = document.querySelector('div');10 div.textContent = 'Hello World';11 }12 `);13 });14 const { page } = await browser.newContext().newPage();15 await page.goto(server.PREFIX + '/test.html');16 const element = await page.$('div');17 const selector = parseSelector('div');18 await updateChildComponent(page, selector, element, 'updateChildComponent');19 expect(await page.textContent('div')).toBe('Hello World');20 await server.stop();21})();22const path = require('path');23const { test, expect } = require('@playwright/test');24test('test', async ({ page }) => {25 await page.click('text=Update me');26 expect(await page.textContent('div')).toBe('Hello World');27});28 function updateChildComponent() {29 const div = document.querySelector('div');30 div.textContent = 'Hello World';31 }32const { updateChildComponent } = require('playwright-core/lib/server/dom');33const { parseSelector } = require('playwright-core/lib/server/common/selectorParser');34const { createTestServer } = require('playwright-core/lib/utils/testserver');35(async () => {36 const server = await createTestServer();37 server.setRoute('/test.html', (req
Using AI Code Generation
1const { Page } = require('playwright');2const { updateChildComponent } = require('playwright/lib/server/dom');3const { createTestServer } = require('playwright/test');4const { test } = require('playwright/test');5test('test', async ({ page }) => {6 await page.evaluate(() => {7 const div = document.createElement('div');8 div.textContent = 'Hello World';9 document.body.appendChild(div);10 });11 const div = await page.$('div');12 const divHandle = await div.evaluateHandle((node) => node);13 await updateChildComponent(page, divHandle, 'test', 'test');14});
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?
