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How to use isSameChild method in Playwright Internal
Best JavaScript code snippet using playwright-internal
render.js
Source: render.js 
...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 });...
transition.js
Source: transition.js
...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)...
prefixTree.js
Source: prefixTree.js
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 }...
utils.js
Source: utils.js
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 });...
TransitionStub.js
Source: TransitionStub.js
...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 }...
Using AI Code Generation
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.$('h2');10 await browser.close();11})();
Using AI Code Generation
1const { isSameChild } = require('playwright/lib/server/dom.js');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const element = await page.$('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.$('text=Get started');32 console.log(isSameChild(element, sameElement));33 await browser.close();34})();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 await page.screenshot({ path: `example.png` });6 await browser.close();7})();8const { chromium } = require('playwright');9(async () => {10 const browser = await chromium.launch();11 const page = await browser.newPage();12 await page.screenshot({ path: `example.png` });13 await browser.close();14})();15const { chromium } = require('playwright');16(async () => {17 const browser = await chromium.launch();18 const page = await browser.newPage();19 await page.screenshot({ path: `example.png` });20 await browser.close();21})();22const { chromium } = require('playwright');23(async () => {24 const browser = await chromium.launch();25 const page = await browser.newPage();26 await page.screenshot({ path: `example.png` });27 await browser.close();28})();29const { chromium } = require('playwright');30(async () => {31 const browser = await chromium.launch();32 const page = await browser.newPage();33 await page.screenshot({ path: `example.png` });34 await browser.close();35})();36const { chromium } = require('playwright');37(async () => {38 const browser = await chromium.launch();39 const page = await browser.newPage();40 await page.screenshot({ path: `example.png` });41 await browser.close();42})();43const { chromium } =
Using AI Code Generation
1const { isSameChild } = require('playwright/lib/server/dom.js');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const aElement = await page.$('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})();
Using AI Code Generation
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})();
Using AI Code Generation
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();
Using AI Code Generation
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});
Using AI Code Generation
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));
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 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})();
StackOverFlow community discussions
Questions
Discussion
Is it possible to get the selector from a locator object in playwright?
Jest + Playwright - Test callbacks of event-based DOM library
Running Playwright in Azure Function
firefox browser does not start in playwright
firefox browser does not start in playwright
How to run a list of test suites in a single file concurrently in jest?
Well this is one way, but not sure if it will work for all possible locators!.
// Get a selector from a playwright locator
import { Locator } from "@playwright/test";
export function extractSelector(locator: Locator) {
const selector = locator.toString();
const parts = selector.split("@");
if (parts.length !== 2) { throw Error("extractSelector: susupect that this is not a locator"); }
if (parts[0] !== "Locator") { throw Error("extractSelector: did not find locator"); }
return parts[1];
}
Blogs
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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.
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- 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.
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- 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.
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