How to use createReactiveObject method in Playwright Internal

Best JavaScript code snippet using playwright-internal

reactive.js

Source: reactive.js Github

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...5 , readonlyHanlder6 , shallowReadonlyHandler7} from './​baseHandlers.js'8function reactive(target) {9 return createReactiveObject(target, false, mutableHandler);10}11function shallowReactive(target) {12 return createReactiveObject(target, false, shallowReactiveHandler)13}14/​/​ 沒setter15function readonly(target) {16 return createReactiveObject(target, true, readonlyHanlder)17}18function shallowReadonly(target) {19 return createReactiveObject(target, true, shallowReadonlyHandler)20}21/​/​ WeakMap 會自動gc,不會造成內存洩漏,`key只能是object`22const reactiveMap = new WeakMap();23const readonlyMap = new WeakMap();24function createReactiveObject(target, isReadonly = false, baseHandlers) {25 /​/​ Proxy只能搞object,不是object就不搞26 if (!isObject(target)) {27 return target;28 }29 /​/​2個map, 唯讀跟非唯讀, 用flag區分30 const proxyMap = isReadonly ? readonlyMap : reactiveMap;31 const existProxy = proxyMap.get(target); /​/​ 查一下這個東西有沒有被代理過32 if (existProxy) {/​/​ If the key can't be found, undefined is returned.33 return existProxy34 }35 const proxy = new Proxy(target, baseHandlers);36 proxyMap.set(target, proxy); /​/​ 將代理緩存, 用來判斷 不可重複代理37 return proxy;38}...

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reactive3.js

Source: reactive3.js Github

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...3function isObject(val){4 return typeof val === 'object' && val !== null;5}6function reactive(target){7 return createReactiveObject(target)8}9function createReactiveObject(target){10 if(!isObject(target)){11 return target;12 }13 if(toProxy.has(target)){ /​/​ 如果 target 已经代理过,直接返回代理对象(一直重复reactive(target))14 return toProxy.get(target);15 }16 if(toRaw.has(target)){ /​/​ 防止代理对象再次被代理(一直重复reactive(proxy))17 return target;18 }19 let baseHandler = {20 get: function(target, key, receiver){21 console.log('get');22 let result = Reflect.get(target, key, receiver);23 return isObject(result) ? reactive(result) : result;...

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helpers.js

Source: helpers.js Github

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...9 Object.keys(object).forEach((key, i) => {10 if (object[key] instanceof Array) {11 createReactiveArray(isArray, root, key, object[key])12 } else if (object[key] instanceof Object) {13 createReactiveObject(isArray, root, key, object[key]);14 } else {15 setReactiveValue(isArray, root, key, object[key])16 }17 })18}19function createReactiveArray(isArray, root, key, values) {20 if (isArray) {21 root.push([]);22 } else {23 Vue.set(root, key, []);24 }25 fillArray(root[key], values)26}27function fillArray(rootArray, arrayElements) {28 arrayElements.forEach((element, i) => {29 if (element instanceof Array) {30 rootArray.push([])31 } else if (element instanceof Object) {32 rootArray.push({});33 } else {34 rootArray.push(element);35 }36 createReactiveNestedFilterObject(rootArray[i], element);37 })38}39function createReactiveObject(isArray, obj, key, values) {40 if (isArray) {41 obj.push({});42 } else {43 Vue.set(obj, key, {});44 }45 createReactiveNestedFilterObject(obj[key], values);46}47function setValue(isArray, obj, key, value) {48 if (isArray) {49 obj.push(value);50 } else {51 Vue.set(obj, key, value);52 }53}...

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01-3.js

Source: 01-3.js Github

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...19let user = {20 name: 'my name',21 score: 022}23createReactiveObject(user)24console.log(user.name)25user.name = 'acoshift'26console.log(user.name)27user.other = 10...

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factory.js

Source: factory.js Github

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1function createReactiveObject(name) {2 return {3 name,4 handlers: [],5 addHandler: function(handler) {this.handlers.push(handler);},6 doIt: function() {7 for (const handler of this.handlers) {8 handler();9 }10 },11 };12 }13 14 const reactiveObject3 = createReactiveObject('rObj3');15 reactiveObject3.addHandler(() => console.log('handler3.1'));16 reactiveObject3.addHandler(() => console.log('handler3.2'));...

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index.js

Source: index.js Github

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1import { handler } from './​handler';2import { isObject } from '../​utils';3function createReactiveObject(target, baseHandler) {4 if (!isObject(target)) {5 return target;6 }7 const observer = new Proxy(target, baseHandler);8 return observer;9}10export function reactive(target) {11 return createReactiveObject(target, handler);...

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currentTime.mjs

Source: currentTime.mjs Github

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1import createReactiveObject from "./​createReactiveObject.mjs"2const currentTime = createReactiveObject({3 data: {4 now: Date.now()5 },6 created() {7 if(typeof window != 'undefined') {8 setInterval(() => {9 this.now = Date.now()10 }, 1000)11 }12 }13})...

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Using AI Code Generation

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1const { createReactiveObject } = require('playwright/​lib/​client/​reactive');2const { createReactiveObject } = require('playwright/​lib/​client/​reactive');3const { chromium } = require('playwright');4(async () => {5 const browser = await chromium.launch();6 const page = await browser.newPage();7 const selector = await page.$('text=Get started');8 const reactive = createReactiveObject(selector);9 console.log(reactive);

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Using AI Code Generation

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1const { createReactiveObject } = require('playwright/​lib/​server/​frames');2const { Page } = require('playwright/​lib/​server/​page');3const { Frame } = require('playwright/​lib/​server/​frame');4const { JSHandle } = require('playwright/​lib/​server/​jsHandle');5const page = new Page(null, null, null);6const frame = new Frame(page, null, null);7const jsHandle = new JSHandle(frame, null, null);8const reactive = createReactiveObject(jsHandle, 'window', true);9reactive.on('window.alert', (message) => {10 console.log(message);11});12window.alert('Hello World');13const { createReactiveObject } = require('playwright/​lib/​server/​frames');14const { Page } = require('playwright/​lib/​server/​page');15const { Frame } = require('playwright/​lib/​server/​frame');16const { JSHandle } = require('playwright/​lib/​server/​jsHandle');17const page = new Page(null, null, null);18const frame = new Frame(page, null, null);19const jsHandle = new JSHandle(frame, null, null);20const reactive = createReactiveObject(jsHandle, 'window', true);21reactive.on('window.alert', async (message) => {22 console.log(message);23 await frame.evaluate(() => window.alert('Hello World'));24});25window.alert('Hello World');26const { createReactiveObject } = require('playwright/​lib/​server/​frames');27const { Page } = require('playwright/​lib/​server/​page');28const { Frame } = require('playwright/​lib/​server/​frame');29const { JSHandle } = require('playwright/​lib/​server/​jsHandle');30const page = new Page(null, null, null);31const frame = new Frame(page, null, null);

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Using AI Code Generation

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1const { createReactiveObject } = require('playwright/​lib/​server/​reactive');2const obj = createReactiveObject({3});4console.log(obj.x);5obj.x = 10;6console.log(obj.x);7const { createReactiveObject } = require('playwright/​lib/​server/​reactive');8const obj = createReactiveObject({9});10console.log(obj.x);11obj.x = 10;12console.log(obj.x);13const { createReactiveObject } = require('playwright/​lib/​server/​reactive');14const obj = createReactiveObject({15});16console.log(obj.x);17obj.x = 10;18console.log(obj.x);19const { createReactiveObject } = require('playwright/​lib/​server/​reactive');20const obj = createReactiveObject({21});22console.log(obj.x);23obj.x = 10;24console.log(obj.x);25const { createReactiveObject } = require('playwright/​lib/​server/​reactive');26const obj = createReactiveObject({27});28console.log(obj.x);29obj.x = 10;30console.log(obj.x);31const { createReactiveObject } = require('playwright/​lib/​server/​reactive');32const obj = createReactiveObject({33});34console.log(obj.x);35obj.x = 10;36console.log(obj.x);37const { createReactiveObject } = require('playwright/​lib/​server/​reactive');38const obj = createReactiveObject({39});40console.log(obj

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Using AI Code Generation

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1const { createReactiveObject } = require('playwright/​lib/​server/​injected/​injectedScript');2const { createJSHandle } = require('playwright/​lib/​server/​injected/​injectedScriptSource');3const { createHandle } = require('playwright/​lib/​server/​injected/​injectedScriptSource');4const { createFrameExecutionContext } = require('playwright/​lib/​server/​injected/​injectedScriptSource');5const { createJSCreateFunction } = require('playwright/​lib/​server/​injected/​injectedScriptSource');6const { createJSHandleFromChannel } = require('playwright/​lib/​server/​injected/​injectedScriptSource');7const { createJSHandleFromHandle } = require('playwright/​lib/​server/​injected/​injectedScriptSource');8const { createJSHandleFromElement } = require('playwright/​lib/​server/​injected/​injectedScriptSource');9const { createJSHandleFromPrimitiveValue } = require('playwright/​lib/​server/​injected/​injectedScriptSource');10const { createJSHandleFromValue } = require('playwright/​lib/​server/​injected/​injectedScriptSource');11const { createJSHandleFromHandleValue } = require('playwright/​lib/​server/​injected/​injectedScriptSource');12const { createJSHandleFromEvaluateHandle } = require('playwright/​lib/​server/​injected/​injectedScriptSource');13const { createJSHandleFromEvaluateHandleValue } = require('playwright/​lib/​server/​injected/​injectedScriptSource');14const { createJSHandleFromEvaluateHandleHandleValue } = require('playwright/​lib/​server/​injected/​injectedScriptSource');15const { createJSHandleFromEvaluateHandlePromise } = require('playwright/​lib/​server/​injected/​injectedScriptSource');16const { createJSHandleFromEvaluateHandlePromiseValue } = require('playwright/​lib/​server/​injected/​injectedScriptSource');17const { createJSHandleFromEvaluateHandlePromiseHandleValue } = require('playwright/​lib/​server/​injected/​injectedScriptSource');18const { createJSHandleFromEvaluateHandlePromiseValueValue } = require('playwright/​lib/​server/​injected/​injectedScriptSource');19const { createJSHandleFromEvaluateHandlePromiseHandleValueValue } = require('playwright/​lib/​server/​injected/​injectedScriptSource');20const { createJSHandleFromEvaluateHandlePromiseHandleValueHandleValue } = require('playwright/​lib/​server/​injected/​injectedScriptSource');21const { createJSHandleFromEvaluateHandlePromiseValueHandleValue } = require('playwright/​lib/​server/​injected/​injectedScriptSource');22const { createJSHandleFromEvaluate

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Using AI Code Generation

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1const { createReactiveObject } = require('playwright-core/​lib/​internal/​inspectorInstrumentation');2const { createReactiveObject } = require('playwright-core/​lib/​internal/​inspectorInstrumentation');3const { createReactiveObject } = require('playwright-core/​lib/​internal/​inspectorInstrumentation');4const obj = createReactiveObject({5});6obj.on('a', (a) => {7 console.log(a);8});9obj.a = 10;10const { createReactiveObject } = require('playwright-core/​lib/​internal/​inspectorInstrumentation');11class Test {12 constructor() {13 this.a = 1;14 this.b = 2;15 this.c = 3;16 this.d = 4;17 this.e = 5;18 }19}20const obj = createReactiveObject(new Test());21obj.on('a', (a) => {22 console.log(a);23});24obj.a = 10;

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Using AI Code Generation

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1const { createReactiveObject } = require('playwright/​lib/​server/​frames');2const obj = createReactiveObject({3});4obj.on('a', (newValue) => console.log('a changed:', newValue));5obj.a = 3;6obj.b = 4;7obj.c = 5;8#### `page.createReactiveObject(object)`9const obj = page.createReactiveObject({10});11obj.on('a', (newValue) => console.log('a changed:', newValue));12obj.a = 3;13obj.b = 4;14obj.c = 5;15#### `page.waitForReactiveObjectState(object, predicate, options)`16const obj = page.createReactiveObject({17});18const predicate = (obj) => obj.a === 3 && obj.b === 4;19await page.waitForReactiveObjectState(obj, predicate);20#### `page.waitForReactiveObjectState(object, predicate, options)`21const obj = page.createReactiveObject({22});23const predicate = (obj) => obj.a === 3 && obj.b === 4;24await page.waitForReactiveObjectState(obj, predicate);25#### `page.waitForReactiveObjectState(object, predicate, options)`26const obj = page.createReactiveObject({27});28const predicate = (obj) => obj.a === 3 && obj.b === 4;29await page.waitForReactiveObjectState(obj, predicate);30#### `page.waitForReactiveObjectState(object, predicate, options)`

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Using AI Code Generation

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1const { createReactiveObject } = require('playwright/​lib/​server/​reactive');2const obj = createReactiveObject({3 baz: { foo: 'bar' },4 qux: { foo: 'bar' },5 quux: { foo: 'bar' },6 quuz: { foo: 'bar' },7});8console.log(obj.foo);9console.log(obj.baz.foo);10obj.baz.foo = 'baz';11console.log(obj.baz.foo);12console.log(obj.bar);13obj.bar = 'foo';14console.log(obj.bar);15const { createReactiveArray } = require('playwright/​lib/​server/​reactive');16const arr = createReactiveArray(['foo', 'bar', 'baz']);17console.log(arr[0]);18console.log(arr[1]);19arr[1] = 'foo';20console.log(arr[1]);21arr.push('qux');22console.log(arr[3]);23arr.splice(2, 1);24console.log(arr[2]);25console.log(arr.length);26const { createReactiveMap } = require('playwright/​lib/​server/​reactive');27const map = createReactiveMap();28map.set('foo', 'bar');29map.set('bar', 'baz');30map.set('baz', { foo: 'bar' });31map.set('qux', { foo: 'bar' });32map.set('quux', { foo: 'bar' });33map.set('quuz', { foo: 'bar' });34console.log(map.get('foo'));35console.log(map.get('baz').foo);36map.get('baz').foo = 'baz';37console.log(map.get('baz').foo);38console.log(map.get('bar'));39map.set('bar', 'foo');40console.log(map.get('bar'));41map.delete('bar');42console.log(map.get('bar'));43const { createReactiveSet } = require('playwright/​lib/​server/​reactive');44const set = createReactiveSet();45set.add('foo');46set.add('bar');47set.add('baz');48set.add('qux');49set.add('quux');

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Using AI Code Generation

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1const { createReactiveObject } = require('@playwright/​test/​lib/​server/​frames');2const { assert } = require('chai');3const { test } = require('@playwright/​test');4test('should create a reactive object', async ({ page }) => {5 const { textContent } = await page.evaluateHandle(() => {6 return {7 textContent: document.querySelector('h1').textContent,8 };9 });10 const reactiveObj = await createReactiveObject(page, textContent);11 assert.equal(reactiveObj.textContent, 'Playwright');12});13 0 passing (1s)14 at ExecutionContext._evaluateInternal (node_modules/​playwright-core/​lib/​cjs/​pw-run.js:125:19)15 at ExecutionContext.evaluate (node_modules/​playwright-core/​lib/​cjs/​pw-run.js:52:16)16 at Object.createReactiveObject (node_modules/​playwright-core/​lib/​cjs/​pw-run.js:144:23)17 at ExecutionContext._evaluateInternal (node_modules/​playwright-core/​lib/​cjs/​pw-run.js:125:19)18 at ExecutionContext.evaluate (node_modules/​playwright-core/​lib/​cjs/​pw-run.js:52:16)19 at Frame.evaluateHandle (node_modules/​playwright-core/​lib/​cjs/​pw-run.js:172:24)20 at Test.fixtures [as fn] (node_modules/​playwright-core/​lib/​cjs/​pw-run.js:67:25)

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Using AI Code Generation

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1const { createReactiveObject } = require('playwright/​lib/​server/​common/​reactive');2const reactive = createReactiveObject({3});4reactive.subscribe((value) => {5 console.log('reactive value: ', value);6});7reactive.set('foo', 'baz');8reactive.unsubscribe();9reactive.set('foo', 'qux');10reactive value: { foo: 'baz' }11reactive value: { foo: 'qux' }

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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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