How to use isSameChild method in Playwright Internal

Best JavaScript code snippet using playwright-internal

render.js

Source: render.js Github

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...163 if (isDomNode(tag)) {164 element = tag;165 }166 const nNode = getVNodeDom(oldVnode);167 if (!element && nNode && isSameChild(oldVnode, vnode)) {168 element = nNode;169 } else {170 vnode._drt = true;171 }172 if (!element) {173 if (!isString(tag)) return;174 /​/​ Mainly for imported svg strings. Svg element as string is much smaller than transpiled jsx result.175 /​/​ At least in Google Optimize there's quite small size limit for assets.176 if (tag.indexOf('<') !== -1) {177 renderer.innerHTML = tag;178 element = renderer.firstElementChild.cloneNode(true);179 renderer.innerHTML = '';180 } else {181 if (!tag) {182 element = document.createTextNode(props.text);183 } else {184 element = config.n && svg ? document.createElementNS(getNs('svg'), tag) : document.createElement(tag);185 }186 }187 }188 if (!isSame(vnode, oldVnode)) {189 setElementAttributes(element, props, oldProps);190 }191 }192 if (!frag) vnode._n = element;193 }194 if (children?.length) {195 vnode._c = createChildren(vnode, children, oldVnode?._c);196 }197 return vnode;198};199const flatten = (items) => {200 const flat = [];201 items.forEach((item) => {202 if (isArray(item)) {203 flat.push(...flatten(item));204 } else {205 flat.push(item);206 }207 });208 return flat;209};210const getChildrenList = (children = []) => {211 const childrenMap = new Map();212 children.forEach((child) => {213 if (child?.key) childrenMap.set(child.key, child);214 });215 return { map: childrenMap, items: children };216};217/​**218 * @param {VNode} vnode219 * @param {Array} children220 * @param {Array} [oldChildren]221 */​222const createChildren = (vnode, children = [], oldChildren) => {223 const oldChildrenMap = getChildrenList(oldChildren).map;224 const newChildren = flatten(children).map((child, index) => {225 let oldChild;226 if (isRenderableElement(child)) {227 if (!isVNode(child)) {228 child = createVNode('', { text: child, key: `${vnode.key}${index}` });229 }230 if (vnode.svg) {231 child.svg = true;232 }233 if (!child.props.key) {234 child.key = vnode.key + index;235 }236 oldChild = oldChildrenMap.get(child.key);237 if (!isSameChild(child, oldChild)) {238 oldChild = undefined;239 }240 renderVnode(child, oldChild);241 if (getVNodeDom(child, true) && isVNode(oldChild)) {242 oldChildrenMap.delete(oldChild.key);243 }244 }245 return child;246 });247 if (config.h || config.c) {248 /​/​ Loop all the rest old children and run unmount callbacks and finally remove them from the DOM249 for (const [_, oldChild] of oldChildrenMap) {250 runUnmountCallbacks(oldChild);251 }252 }253 return newChildren;254};255/​**256 * Creates a style string from given object. If argument is already a string, then return it.257 * @param {Object|String} style258 * @returns {String}259 */​260const getStyleString = (style) => {261 if (isString(style)) return style;262 if (!style || typeof style !== 'object') return '';263 return Object.keys(style).reduce(264 (prev, curr) =>265 `${(prev += curr266 .split(/​(?=[A-Z])/​)267 .join('-')268 .toLowerCase())}:${style[curr]};`,269 ''270 );271};272/​**273 * Replaces the targeted DOM element with rendered VNode element's DOM node or appends the rendered VNode into the DOM node.274 * TODO: Make this less hacky275 * @param {VNode} vnode276 * @param {VNode} [prevVnode]277 * @param {HTMLElement} [targetDomNode]278 * @param {HTMLElement} [after]279 * @returns {HTMLElement|null} Rendered DOM tree280 */​281export const patchVnodeDom = (vnode, prevVnode, targetDomNode, after) => {282 if (!isRenderableElement(vnode)) {283 if (prevVnode) {284 domRemove(getVNodeDom(prevVnode, true));285 }286 return vnode;287 }288 let returnDom = vnode._n || createDocumentFragment();289 /​/​ VNode is a component, try to insert the rendered component290 if (vnode._r) {291 return patchVnodeDom(292 vnode._r,293 isSameChild(vnode, prevVnode) ? prevVnode?._r || prevVnode : undefined,294 targetDomNode295 );296 }297 if (prevVnode?._r) {298 return patchVnodeDom(vnode, prevVnode._r, targetDomNode);299 }300 const oldChildrenList = getChildrenList(prevVnode?._c);301 const oldChildren = oldChildrenList.items;302 const compareDeeper = isSameChild(vnode, prevVnode);303 /​/​ Loop through rendered element children304 let targetParent = returnDom;305 if (!vnode._n) {306 const someChildWithDom = oldChildren.find((old) => getVNodeDom(old, true));307 if (someChildWithDom) {308 targetParent = getVNodeDom(someChildWithDom, true).parentElement;309 }310 }311 let siblingNode = null;312 vnode._c?.forEach((child, index) => {313 const oldChildVnode = (child && oldChildrenList.map.get(child.key)) || oldChildren[index];314 siblingNode =315 patchVnodeDom(child, (!child || compareDeeper) && oldChildVnode, targetParent, siblingNode) || siblingNode;316 });...

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transition.js

Source: transition.js Github

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...136 }137 if (138 oldChild &&139 oldChild.data &&140 !isSameChild(child, oldChild) &&141 !isAsyncPlaceholder(oldChild)142 ) {143 /​/​ replace old child transition data with fresh one144 /​/​ important for dynamic transitions!145 const oldData: Object = oldChild && (oldChild.data.transition = extend({}, data))146 /​/​ handle transition mode147 if (mode === 'out-in') {148 /​/​ return placeholder node and queue update when leave finishes149 this._leaving = true150 mergeVNodeHook(oldData, 'afterLeave', () => {151 this._leaving = false152 this.$forceUpdate()153 })154 return placeholder(h, rawChild)...

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prefixTree.js

Source: prefixTree.js Github

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1module.exports.getSuffixes = function(){2 return dataPreprocess().then(data => main(data));3}4module.exports.trainCustomData = function(data){5 return main(data.split('\n').filter(word => { if(word.trim().length > 2) { return word.toLocaleLowerCase().trim() } }))6}7function main(data){8 const keyStore = {}9 return new Promise( resolve => {10 let D = new Array()11 for( let i = 0; i < data.length; i++ ){12 let splitIt = data[i].split(''), 13 head = splitIt[0],14 headPosition = checkHead(head, D),15 currentPos = 116 /​* 17 abc, abd, bcd18 1) a 2) b19 | |20 b c21 /​ \ |22 c d d23 In (1) abc, abd there are 2 words 24 abc will simply stored since its empty => [a->[b->[c]]] 25 then in case of abd, head(a) will be verified if 'a' already exist26 If yes then we'll chain through a(exist)->b(exist)->d(doesn't exist create new and append to b)27 [ a -> [ b -> [ c , d ]]] 28 In (2) bcd, since there is no head 'b' to begin with 29 [ b -> [ c -> [ d ]]] will be simply stored 30 */​31 if( headPosition === -1 ){ 32 let grandFather = new Character(head)33 console.log('grand=',grandFather.char)34 newHead = grandFather 35 while(splitIt[currentPos]){ 36 /​/​simply loop through characters and append to each other 37 let child = new Character(splitIt[currentPos++])38 newHead.addChild(child)39 newHead = child40 if(!splitIt[currentPos]){41 child.setWord(data[i])42 }43 }44 D.push(grandFather)45 }else{46 let newGrandFather = D[headPosition],47 newHead = newGrandFather 48 while(splitIt[currentPos]){ 49 /​/​check if that layer of children has that same character50 let isSameChild = verifyLayer(newHead, splitIt[currentPos])51 if( isSameChild > -1 ){52 newHead = newHead.children[isSameChild]53 currentPos += 154 }else{55 /​/​Else create new child and append to previous node56 let child = new Character(splitIt[currentPos++])57 newHead.addChild(child)58 newHead = child 59 if(!splitIt[currentPos]){60 child.setWord(data[i])61 }62 } 63 }64 /​/​Since old trie has been editied with 1/​ more branches old one will be overwritten65 D[headPosition] = newGrandFather66 } 67 }68 setTimeout(() => {69 console.log(keyStore)70 })71 resolve(D);72 })73}74function checkHead(character, D){75 for( let i = 0; i < D.length; i++ ){76 if( D[i].char === character ) return i77 }78 return -179}80function verifyLayer(Node, character){81 for( let i = 0; i < Node.children.length; i++ ){82 if( Node.children[i].char === character ) return i83 }84 return -185}86/​/​Extract the data preprocess it (exclude spaces, length >= 3 etc)87function dataPreprocess(){88 return new Promise((resolve)=>{89 require('fs').readFile("words.txt",'utf-8',(err,data)=>{90 if(err) {reject(err); return}91 resolve(data.split('\n').filter(word => { if(word.trim().length > 2) { return word.toLocaleLowerCase().trim() } }))92 })93 })94}95class Character{96 constructor(character){97 this.char = character98 this.children = new Array()99 this.word = '';100 this.id = `${Math.random()}`.substr(2)101 }102 addChild(character) {103 this.children.push(character);104 }105 setWord(word) {106 this.word = word;107 }...

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utils.js

Source: utils.js Github

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1'use strict';2import {primitiveMap} from './​primitiveComponents.js';3import chalk from 'chalk';4import {clone, merge} from 'lodash';5export function cloneProps(props) {6 var t = [];7 ['texture', 'textures'].forEach(k => {8 if (props[k]) {9 t.push([k, props[k]]);10 }11 });12 const slots = props.slots.slice();13 slots.isSlot = true;14 props = clone(props);15 t.forEach(([k, v]) => {16 props[k] = v;17 });18 Object.defineProperty(props, 'slots', {19 enmuratbale: false,20 writable: false,21 value: slots,22 });23 return props;24}25export function isStr(v) {26 return typeof v === 'string' || v instanceof String;27}28export function isDef(v) {29 return v !== undefined;30}31export function isUndef(v) {32 return v === undefined;33}34export function isVNode(obj) {35 const keys = Object.keys(obj);36 return ['props','type', 'children'].every(k => {37 return keys.indexOf(k) !== -1;38 })39}40export function isPixiObj(obj) {41 return obj && obj instanceof PIXI.DisplayObject;42}43export function isEqualObj(obj1,obj2) {44}45export function equalVNode(obj1,obj2,checkChildren) {46 if(typeof obj1 !== 'object' || typeof obj2 !== 'object'){47 return false;48 }49 var isSameNode;50 if(isDef(obj1.key) || isDef(obj2.key)){51 isSameNode = obj1.key === obj2.key;52 }else {53 if(obj1.type === obj2.type){54 isSameNode = compareObject(obj1.props,obj2.props);55 }56 }57 if(isSameNode && checkChildren){58 }59 return isSameNode;60}61export function equalVNodeChildren(obj1, obj2) {62 const len = obj1.children.length;63 var isSameNode = len === obj2.children.length;64 if(isSameNode){65 let i = 0;66 let isSameChild = true;67 while (i < len) {68 let childObj1 = obj1.children[i];69 let childObj2 = obj2.children[i];70 isSameChild = equalVNode(childObj1, childObj2);71 if(!isSameChild){72 break;73 }74 i++;75 }76 isSameNode = isSameChild;77 }78 return isSameNode;79}80export function compareObject(obj1, obj2) {81 const type1 = typeof obj1;82 const type2 = typeof obj2;83 if(obj1 === obj2){84 return true;85 }86 if(type1 === type2 && obj1 && obj2){87 const keys1 = Object.keys(obj1).filter((keyName) => !/​^_/​.test(keyName));88 const keys2 = Object.keys(obj2).filter((keyName) => !/​^_/​.test(keyName));89 if(keys1.join('') === keys2.join('')){90 return keys1.every(k=>{91 const type1 = typeof obj1[k];92 const type2 = typeof obj2[k];93 if(type1 !== type2){94 return false;95 } else if(type1 === 'object' && obj1 && obj2){96 return compareObject(obj1[k], obj2[k]);97 } else if(type1 === 'function'){98 let r = obj1[k].toString() === obj2[k].toString();99 return r;100 }101 return obj1[k] === obj2[k];102 })103 }104 }105 return false;106}107export function isReservedType(name) {108 return !!primitiveMap[name] || Object.keys(primitiveMap).some(k => {109 return primitiveMap[k] === name;110 });111}112export function log(){113 if([114 /​/​ 'replaceVNode',115 /​/​ 'updateComponent',116 /​/​ 'updateChildren',117 /​/​ 'syncProps',118 /​/​ 'patchVnode',119 ].indexOf(arguments[0]) !== -1) {120 const args = [...arguments];121 console.log.apply(console,[chalk.green(args[0])].concat(args.slice(1)));122 }123}124export function firstLow(str) {125 return str.replace(/​^([\w])/​, (s) => {126 return s.toLowerCase();127 });...

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TransitionStub.js

Source: TransitionStub.js Github

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...81 }82 if (83 oldChild &&84 oldChild.data &&85 !isSameChild(child, oldChild) &&86 !isAsyncPlaceholder(oldChild) &&87 !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)88 ) {89 oldChild.data = { ...data }90 }91 return rawChild92 }...

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Using AI Code Generation

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1const { isSameChild } = require('playwright/​lib/​server/​dom.js');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 const handle = await page.$('h1');8 const sameHandle = await page.$('h1');9 const differentHandle = await page.$('h2');10 await browser.close();11})();

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Using AI Code Generation

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1const { isSameChild } = require('playwright/​lib/​server/​dom.js');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 const element = await page.$('text=Get started');8 const sameElement = await page.$('text=Get started');9 console.log(isSameChild(element, sameElement));10 await browser.close();11})();12const { isSameChild } = require('playwright/​lib/​server/​dom.js');13const { chromium } = require('playwright');14(async () => {15 const browser = await chromium.launch();16 const context = await browser.newContext();17 const page = await context.newPage();18 const element = await page.$('text=Get started');19 const differentElement = await page.$('text=Playwright');20 console.log(isSameChild(element, differentElement));21 await browser.close();22})();23isSameChild(element, other)24const { isSameChild } = require('playwright/​lib/​server/​dom.js');25const { chromium } = require('playwright');26(async () => {27 const browser = await chromium.launch();28 const context = await browser.newContext();29 const page = await context.newPage();30 const element = await page.$('text=Get started');31 const sameElement = await page.$('text=Get started');32 console.log(isSameChild(element, sameElement));33 await browser.close();34})();

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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 const page = await browser.newPage();5 await page.screenshot({ path: `example.png` });6 await browser.close();7})();8const { chromium } = require('playwright');9(async () => {10 const browser = await chromium.launch();11 const page = await browser.newPage();12 await page.screenshot({ path: `example.png` });13 await browser.close();14})();15const { chromium } = require('playwright');16(async () => {17 const browser = await chromium.launch();18 const page = await browser.newPage();19 await page.screenshot({ path: `example.png` });20 await browser.close();21})();22const { chromium } = require('playwright');23(async () => {24 const browser = await chromium.launch();25 const page = await browser.newPage();26 await page.screenshot({ path: `example.png` });27 await browser.close();28})();29const { chromium } = require('playwright');30(async () => {31 const browser = await chromium.launch();32 const page = await browser.newPage();33 await page.screenshot({ path: `example.png` });34 await browser.close();35})();36const { chromium } = require('playwright');37(async () => {38 const browser = await chromium.launch();39 const page = await browser.newPage();40 await page.screenshot({ path: `example.png` });41 await browser.close();42})();43const { chromium } =

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Using AI Code Generation

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1const { isSameChild } = require('playwright/​lib/​server/​dom.js');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 const aElement = await page.$('a');8 const sameElement = await page.$('a');9 const differentElement = await page.$('h1');10 console.log(isSameChild(aElement, sameElement));11 console.log(isSameChild(aElement, differentElement));12 await browser.close();13})();

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Using AI Code Generation

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1const { isSameChild } = require('playwright/​lib/​client/​selectorEngine');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 const element = await page.$('text=Get started');8 const sameChild = await page.$('text=Get started >> text=Get started');9 console.log(await isSameChild(page, element, sameChild));10 await browser.close();11})();

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Using AI Code Generation

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1const { isSameChild } = require('playwright/​lib/​internal/​utils/​dom');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 const { root } = await page._delegate._mainFrame._utilityContext();8 const child = await root.$('text=Get Started');9 const parent = await child.$('..');10 console.log(await isSameChild(parent, child));11 await browser.close();12})();13const { isSameChild } = require('playwright/​lib/​internal/​utils/​dom');14const { chromium } = require('playwright');15(async () => {16 const browser = await chromium.launch();17 const context = await browser.newContext();18 const page = await context.newPage();19 const { root } = await page._delegate._mainFrame._utilityContext();20 const child = await root.$('text=Get Started');21 const parent = await child.$('..');22 console.log(await isSameChild(parent, root));23 await browser.close();24})();25const { isSameChild } = require('playwright/​lib/​internal/​utils/​dom');26const { chromium } = require('playwright');27(async () => {28 const browser = await chromium.launch();29 const context = await browser.newContext();30 const page = await context.newPage();31 const { root } = await page._delegate._mainFrame._utilityContext();32 const child = await root.$('text=Get Started');33 const parent = await child.$('..');34 console.log(await isSameChild(child, parent));35 await browser.close();36})();37const { isSameChild } = require('playwright/​lib/​internal/​utils/​dom');38const { chromium } = require('playwright');39(async () => {40 const browser = await chromium.launch();

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Using AI Code Generation

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1const { isSameChild } = require('playwright/​lib/​server/​dom.js');2const { chromium } = require('playwright');3const { test, expect } = require('@playwright/​test');4test('isSameChild', async ({ page }) => {5 await page.setContent('<div><div></​div></​div>');6 const [div1, div2] = await page.$$('div');7 expect(isSameChild(await div1._client.send('DOM.describeNode'), await div2._client.send('DOM.describeNode'))).toBe(false);8 expect(isSameChild(await div1._client.send('DOM.describeNode'), await div1._client.send('DOM.describeNode'))).toBe(true);9});

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Using AI Code Generation

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1const { isSameChild } = require('playwright/​lib/​server/​dom.js');2const { parse } = require('playwright/​lib/​server/​common/​html.js');3const { parse: parseXML } = require('playwright/​lib/​server/​common/​xml.js');4`;5`;6const htmlDoc = parse(html);7const xmlDoc = parseXML(xml);8console.log(isSameChild(htmlDoc.body, xmlDoc));

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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 const context = await browser.newContext();5 const page = await context.newPage();6 const userAgent = await page.evaluate(() => navigator.userAgent);7 console.log(userAgent);8 await browser.close();9})();10Mozilla/​5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/​537.36 (KHTML, like Gecko) Chrome/​93.0.4577.0 Safari/​537.3611const { chromium } = require('playwright');12(async () => {13 const browser = await chromium.launch();14 const context = await browser.newContext();15 const page = await context.newPage();16 const element1 = await page.$('text=Learn More');17 const element2 = await page.$('text=Learn More');18 const isSame = await page.evaluate((element1, element2) => element1.isSameChild(element2), element1, element2);19 console.log(isSame);20 await browser.close();21})();22const { chromium } = require('playwright');23(async () => {24 const browser = await chromium.launch();25 const context = await browser.newContext();26 const page = await context.newPage();27 const element1 = await page.$('text=Learn More');28 const element2 = await page.$('text=Get Started');29 const isSame = await page.evaluate((element1, element2) => element1.isSameChild(element2), element1, element2);30 console.log(isSame);31 await browser.close();32})();

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StackOverFlow community discussions

Questions
Discussion

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
})
https://stackoverflow.com/questions/65477895/jest-playwright-test-callbacks-of-event-based-dom-library

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