How to use startWatchingForValueChange method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ChangeEventPlugin.js

Source:ChangeEventPlugin.js Github

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...76 activeElementValue = '' + val;77 activeElementValueProp.set.call(this, val);78 }79 };80 function startWatchingForValueChange(target, targetID) {81 activeElement = target;82 activeElementID = targetID;83 activeElementValue = target.value;84 activeElementValueProp = Object.getOwnPropertyDescriptor(target.constructor.prototype, 'value');85 Object.defineProperty(activeElement, 'value', newValueProp);86 activeElement.attachEvent('onpropertychange', handlePropertyChange);87 }88 function stopWatchingForValueChange() {89 if (!activeElement) {90 return;91 }92 delete activeElement.value;93 activeElement.detachEvent('onpropertychange', handlePropertyChange);94 activeElement = null;95 activeElementID = null;96 activeElementValue = null;97 activeElementValueProp = null;98 }99 function handlePropertyChange(nativeEvent) {100 if (nativeEvent.propertyName !== 'value') {101 return;102 }103 var value = nativeEvent.srcElement.value;104 if (value === activeElementValue) {105 return;106 }107 activeElementValue = value;108 manualDispatchChangeEvent(nativeEvent);109 }110 function getTargetIDForInputEvent(topLevelType, topLevelTarget, topLevelTargetID) {111 if (topLevelType === topLevelTypes.topInput) {112 return topLevelTargetID;113 }114 }115 function handleEventsForInputEventIE(topLevelType, topLevelTarget, topLevelTargetID) {116 if (topLevelType === topLevelTypes.topFocus) {117 stopWatchingForValueChange();118 startWatchingForValueChange(topLevelTarget, topLevelTargetID);119 } else if (topLevelType === topLevelTypes.topBlur) {120 stopWatchingForValueChange();121 }122 }123 function getTargetIDForInputEventIE(topLevelType, topLevelTarget, topLevelTargetID) {124 if (topLevelType === topLevelTypes.topSelectionChange || topLevelType === topLevelTypes.topKeyUp || topLevelType === topLevelTypes.topKeyDown) {125 if (activeElement && activeElement.value !== activeElementValue) {126 activeElementValue = activeElement.value;127 return activeElementID;128 }129 }130 }131 function shouldUseClickEvent(elem) {132 return (elem.nodeName === 'INPUT' && (elem.type === 'checkbox' || elem.type === 'radio'));...

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7340.js

Source:7340.js Github

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1{2 if (topLevelType === "topFocus") {3 stopWatchingForValueChange();4 startWatchingForValueChange(target, targetInst);5 } else if (topLevelType === "topBlur") {6 stopWatchingForValueChange();7 }...

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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 await page.waitForSelector('text=Your user agent is');7 await page.startWatchingForValueChange('text=Your user agent is');8 await page.waitForSelector('text=Your user agent is');9 await page.stopWatchingForValueChange('text=Your user agent is');10 await browser.close();11})();12const { chromium } = require('playwright');13(async () => {14 const browser = await chromium.launch();15 const context = await browser.newContext();16 const page = await context.newPage();17 await page.waitForSelector('text=Your user agent is');18 await page.startWatchingForValueChange('text=Your user agent is');19 await page.waitForSelector('text=Your user agent is');20 await page.stopWatchingForValueChange('text=Your user agent is');21 await browser.close();22})();

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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 element = await page.$('input');7 const value = await element.evaluate(element => element.value);8 console.log(value);9 await browser.close();10})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2const path = require('path');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.fill('input[type="text"]', 'Playwright');8 await page.press('input[type="text"]', 'Enter');9 await page.waitForSelector('text=Playwright');10 await page.click('text=Playwright');11 await page._delegate.startWatchingForValueChange('input[type="text"]');12 await page.fill('input[type="text"]', 'Playwright is awesome');13 await page.press('input[type="text"]', 'Enter');14 await page.waitForSelector('text=Playwright is awesome');15 await page.close();16 await context.close();17 await browser.close();18})();19const { chromium } = require('playwright');20const path = require('path');21describe('Playwright', () => {22 it('should work', async () => {23 const browser = await chromium.launch();24 const context = await browser.newContext();25 const page = await context.newPage();26 await page.fill('input[type="text"]', 'Playwright');27 await page.press('input[type="text"]', 'Enter');28 await page.waitForSelector('text=Playwright');29 await page.click('text=Playwright');30 await page._delegate.startWatchingForValueChange('input[type="text"]');31 await page.fill('input[type="text"]', 'Playwright is awesome');32 await page.press('input[type="text"]', 'Enter');33 await page.waitForSelector('text=Playwright is awesome');34 await page.close();35 await context.close();36 await browser.close();37 });38});

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Using AI Code Generation

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1const { chromium } = require('playwright-core');2(async () => {3 const browser = await chromium.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 const element = await page.$('text=Get Started');7 await element.evaluate(element => element.startWatchingForValueChange());8 await element.evaluate(element => element.stopWatchingForValueChange());9 await browser.close();10})();11const { chromium } = require('playwright-core');12(async () => {13 const browser = await chromium.launch({ headless: false });14 const context = await browser.newContext();15 const page = await context.newPage();16 const element = await page.$('text=Get Started');17 await element.evaluate(element => element.startWatchingForAttribute('href'));18 await element.evaluate(element => element.stopWatchingForAttribute('href'));19 await browser.close();20})();21const { chromium } = require('playwright-core');22(async () => {23 const browser = await chromium.launch({ headless: false });24 const context = await browser.newContext();25 const page = await context.newPage();26 const element = await page.$('text=Get Started');27 await element.evaluate(element => element.startWatchingForText());28 await element.evaluate(element => element.stopWatchingForText());29 await browser.close();30})();31const { chromium } = require('playwright-core');32(async () => {33 const browser = await chromium.launch({ headless: false });34 const context = await browser.newContext();35 const page = await context.newPage();36 const element = await page.$('text=Get Started');37 await element.evaluate(element => element.startWatchingForChildren());38 await element.evaluate(element => element.stopWatchingForChildren());39 await browser.close();40})();41const { chromium } = require('playwright-core');42(async () => {43 const browser = await chromium.launch({ headless: false });

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Using AI Code Generation

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1const { startWatchingForValueChange } = require('playwright/lib/server/chromium/crNetworkManager');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 await startWatchingForValueChange(page, 'input[name="q"]', (newValue) => {7 console.log('input value changed to', newValue);8 });9 await page.fill('input[name="q"]', 'Hello World');10 await page.fill('input[name="q"]', 'Hello World 2');11 await page.fill('input[name="q"]', 'Hello World 3');12 await page.fill('input[name="q"]', 'Hello World 4');13 await page.fill('input[name="q"]', 'Hello World 5');14 await page.fill('input[name="q"]', 'Hello World 6');15 await page.fill('input[name="q"]', 'Hello World 7');16 await page.fill('input[name="q"]', 'Hello World 8');17 await page.fill('input[name="q"]', 'Hello World 9');18 await page.fill('input[name="q"]', 'Hello World 10');19 await page.fill('input[name="q"]', 'Hello World 11');20 await page.fill('input[name="q"]', 'Hello World 12');21 await page.fill('input[name="q"]', 'Hello World 13');22 await page.fill('input[name="q"]', 'Hello World 14');23 await page.fill('input[name="q"]', 'Hello World 15');24 await page.fill('input[name="q"]', 'Hello World 16');25 await page.fill('input[name="q"]', 'Hello World 17');26 await page.fill('input[name="q"]', 'Hello World 18');27 await page.fill('input[name="q"]', 'Hello World 19');28 await page.fill('input[name="q"]', 'Hello World 20');29 await page.fill('input[name="q"]', 'Hello World 21');30 await page.fill('input[name="q"]', 'Hello World 22');31 await page.fill('input[name="q"]', 'Hello World 23');32 await page.fill('input[name="q"]

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Using AI Code Generation

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1const { startWatchingForValueChange } = require('@playwright/test/lib/utils/recorderUtils');2const { chromium } = require('playwright');3const { test, expect } = require('@playwright/test');4test('test', async ({ page }) => {5 await page.click('text="Get started"');6 await page.click('text="API"');7 await page.click('text="Docs"');8 await page.click('text="Test"');9 await page.click('text="Playwright"');10 await page.click('text="GitHub"');11 await page.click('text="Docs"');12 await page.click('text="API"');13 await page.click('text="Get started"');14 await page.click('text="Playwright"');15 await page.click('text="GitHub"');16 await page.click('text="Docs"');17 await page.click('text="API"');18 await page.click('text="Get started"');19 await page.click('text="Playwright"');20 await page.click('text="GitHub"');21 await page.click('text="Docs"');22 await page.click('text="API"');23 await page.click('text="Get started"');24 await page.click('text="Playwright"');25 await page.click('text="GitHub"');26 await page.click('text="Docs"');27 await page.click('text="API"');28 await page.click('text="Get started"');29 await page.click('text="Playwright"');30 await page.click('text="GitHub"');31 await page.click('text="Docs"');32 await page.click('text="API"');33 await page.click('text="Get started"');34 await page.click('text="Playwright"');35 await page.click('text="GitHub"');36 await page.click('text="Docs"');37 await page.click('text="API"');38 await page.click('text="Get started"');39 await page.click('text="Playwright"');40 await page.click('text="GitHub"');41 await page.click('text="Docs"');42 await page.click('text="API"');43 await page.click('text="Get started"');44 await page.click('text="Playwright"');45 await page.click('text="GitHub"');46 await page.click('text="

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Using AI Code Generation

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1const {startWatchingForValueChange} = require('playwright/lib/server/chromium/crPage');2startWatchingForValueChange(page, {name: 'input'});3page.on('console', msg => console.log(msg.text()));4await page.waitForSelector('input');5const interval = setInterval(async () => {6 const value = await page.$eval('input', el => el.value);7 console.log('Input value: ' + value);8}, 1000);9await page.waitForEvent('valuechanged', event => event.name === 'input');

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Playwright tutorial

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  6. 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.
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