KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use createAsyncPlaceholder method in Playwright Internal

Best JavaScript code snippet using playwright-internal

volumes.js

Source:volumes.js

...54    let volumeSelection;55    if (options.label){56      volumeSelection = CATMAID.DOM.createLabeledAsyncPlaceholder(options.label, initVolumeList(options), options.title, options.initCallback);57    } else {58      volumeSelection = CATMAID.DOM.createAsyncPlaceholder(initVolumeList(options), options.initCallback);59    }60    volumeSelectionWrapper.appendChild(volumeSelection);61    volumeSelectionWrapper.refresh = function(newSelectedIds){62      while (0 !== volumeSelectionWrapper.children.length) {63        volumeSelectionWrapper.removeChild(volumeSelectionWrapper.children[0]);64      }65      var volumeSelection = CATMAID.DOM.createAsyncPlaceholder(initVolumeList(options, newSelectedIds));66      volumeSelectionWrapper.appendChild(volumeSelection);67    };68    return volumeSelectionWrapper;69  };...

create-component.js

Source:create-component.js

...20    asyncFactory = Ctor21    Ctor = resolveAsyncComponent(asyncFactory, baseCtor)22    // debugger23    if (Ctor === undefined) {24      return createAsyncPlaceholder(25        asyncFactory,26        data,27        context,28        children,29        tag30      )31    }32  }33  if (isTrue(Ctor.options.functional)) {34    // debugger35    return createFunctionalComponent(Ctor, data, context, children)36  }37  // debugger38  // data.hook = {...

Using AI Code Generation

1const { createAsyncPlaceholder } = require('playwright');2const { chromium } = require('playwright-chromium');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const placeholder = createAsyncPlaceholder();8  await page.exposeBinding('placeholder', () => placeholder);9  await page.setContent(`10      window.result = placeholder;11  `);12  await page.evaluate(() => window.result);13  await browser.close();14})();15    at CDPSession.send (/Users/ashishkumar/Documents/Work/Playwright/playwright-test/node_modules/playwright/lib/cjs/protocol/channels.js:99:23)16    at CDPSession.sendCommand (/Users/ashishkumar/Documents/Work/Playwright/playwright-test/node_modules/playwright/lib/cjs/protocol/channels.js:86:19)17    at CDPSession.sendCommand (/Users/ashishkumar/Documents/Work/Playwright/playwright-test/node_modules/playwright/lib/cjs/protocol/channels.js:86:19)18    at CDPSession.sendCommand (/Users/ashishkumar/Documents/Work/Playwright/playwright-test/node_modules/playwright/lib/cjs/protocol/channels.js:86:19)19    at CDPSession.sendCommand (/Users/ashishkumar/Documents/Work/Playwright/playwright-test/node_modules/playwright/lib/cjs/protocol/channels.js:86:19)20    at CDPSession.sendCommand (/Users/ashishkumar/Documents/Work/Playwright/playwright-test/node_modules/playwright/lib/cjs/protocol/channels.js:86:19)21    at CDPSession.sendCommand (/Users/ashishkumar/Documents/Work/Playwright/playwright-test/node_modules/playwright/lib/cjs/protocol/channels.js:86:19)22    at CDPSession.sendCommand (/Users/ashishkumar/Documents/Work/Playwright/playwright-test/node_modules/playwright/lib/cjs/protocol/channels.js:86:19)23    at CDPSession.sendCommand (/Users/ashishkumar/Documents/Work/Playwright/playwright-test/node_modules/playwright/lib/cjs/protocol/channels.js

Using AI Code Generation

1const createAsyncPlaceholder = require('playwright/lib/internal/asyncPlaceholder');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const page = await browser.newPage();6  const [request] = await Promise.all([7    page.waitForRequest('**/empty.html'),8    page.evaluate(() => {9      const iframe = document.createElement('iframe');10      iframe.src = 'empty.html';11      document.body.appendChild(iframe);12      return createAsyncPlaceholder();13    }),14  ]);15  await request.response().finished();16  await browser.close();17})();18const request = await page.waitForRequest('**/empty.html');19await request.response().finished();20const request = await page.waitForRequest('**/empty.html');21await request.response().finished();

Using AI Code Generation

1const { createAsyncPlaceholder } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement.js');2const { RecorderSupplement } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement.js');3const { Page } = require('playwright-core/lib/server/page.js');4const { Frame } = require('playwright-core/lib/server/frames.js');5const { ElementHandle } = require('playwright-core/lib/server/dom.js');6const placeholder = createAsyncPlaceholder();7const recorderSupplement = new RecorderSupplement(new Page(new Frame(null, null), null, null));8const recorderAction = {9  target: {10  },11    {12    },13};14placeholder.resolve(new ElementHandle(recorderSupplement, null, 'element1'));15recorderSupplement._onRecordAction(recorderAction, placeholder);16console.log(recorderSupplement._actions);

Using AI Code Generation

1const { createAsyncPlaceholder } = require('playwright/lib/client/asyncCallSequence');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const page = await browser.newPage();6  const elementHandle = await page.$('h1');7  const text = await elementHandle.evaluate(createAsyncPlaceholder('elementHandle.evaluate', async (element) => element.textContent));8  console.log(text);9  await browser.close();10})();11const { createAsyncPlaceholder } = require('playwright/lib/client/asyncCallSequence');12describe('My Test', () => {13  it('should do something', async () => {14    const elementHandle = await page.$('h1');15    const text = await elementHandle.evaluate(createAsyncPlaceholder('elementHandle.evaluate', async (element) => element.textContent));16    console.log(text);17  });18});

Using AI Code Generation

1const { createAsyncPlaceholder } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement');2const { Page } = require('playwright-core/lib/server/page');3const { Frame } = require('playwright-core/lib/server/frame');4const { createAsyncPlaceholder } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement');5const { Page } = require('playwright-core/lib/server/page');6const { Frame } = require('playwright-core/lib/server/frame');7const page = await context.newPage();8await page.type('input[name="q"]', 'Hello World');9await page.click('input[name="btnK"]');10await page.waitForNavigation();11await page.screenshot({ path: 'example.png' });12const { createAsyncPlaceholder } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement');13const { Page } = require('playwright-core/lib/server/page');14const { Frame } = require('playwright-core/lib/server/frame');15const page = await context.newPage();16await page.type('input[name="q"]', 'Hello World');17await page.click('input[name="btnK"]');18await page.waitForNavigation();19await page.screenshot({ path: 'example.png' });20const { createAsyncPlaceholder } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement');21const { Page } = require('playwright-core/lib/server/page');22const { Frame } = require('playwright-core/lib/server/frame');23const page = await context.newPage();24await page.type('input[name="q"]', 'Hello World');25await page.click('input[name="btnK"]');26await page.waitForNavigation();27await page.screenshot({ path: 'example.png' });28const { createAsyncPlaceholder } = require('playwright-core/lib/server/supplements/recorder/recorderSupplement');29const { Page } = require('playwright-core/lib/server/page');30const { Frame } = require('playwright-core/lib/server/frame');

Using AI Code Generation

1const { createAsyncPlaceholder } = require('playwright/lib/server/frames');2const { createFrame } = require('playwright/lib/server/chromium/crPage');3const { Page } = require('playwright/lib/server/chromium/crPage');4const { Frame } = require('playwright/lib/server/frames');5const { FrameManager } = require('playwright/lib/server/frames');6const { CDPSession } = require('playwright/lib/server/cjs/cdpsession');7const { ElementHandle } = require('playwright/lib/server/frames');8const { JSHandle } = require('playwright/lib/server/frames');9const { ExecutionContext } = require('playwright/lib/server/frames');

Using AI Code Generation

1const { createAsyncPlaceholder } = require('playwright/lib/internal/asyncPlaceholder');2const { Page, Worker } = require('playwright/lib/server/page');3const { BrowserContext } = require('playwright/lib/server/browserContext');4const { Browser } = require('playwright/lib/server/browser');5const { BrowserType } = require('playwright/lib/server/browserType');6const { createAsyncPlaceholder } = require('playwright/lib/internal/asyncPlaceholder');7const { Page, Worker } = require('playwright/lib/server/page');8const { BrowserContext } = require('playwright/lib/server/browserContext');9const { Browser } = require('playwright/lib/server/browser');10const { BrowserType } = require('playwright/lib/server/browserType');11const { createAsyncPlaceholder } = require('playwright/lib/internal/asyncPlaceholder');12const { Page, Worker } = require('playwright/lib/server/page');13const { BrowserContext } = require('playwright/lib/server/browserContext');14const { Browser } = require('playwright/lib/server/browser');15const { BrowserType } = require('playwright/lib/server/browserType');16const { createAsyncPlaceholder } = require('playwright/lib/internal/asyncPlaceholder');17const { Page, Worker } = require('playwright/lib/server/page');18const { BrowserContext } = require('playwright/lib/server/browserContext');19const { Browser } = require('playwright/lib/server/browser');20const { BrowserType } = require('playwright/lib/server/browserType');21const { createAsyncPlaceholder } = require('playwright/lib/internal/asyncPlaceholder');22const { Page, Worker } = require('playwright/lib/server/page');23const { BrowserContext } = require('playwright/lib/server/browserContext');24const { Browser } = require('playwright/lib/server/browser');25const { BrowserType } = require('playwright/lib/server/browserType');26const { createAsyncPlaceholder } = require('playwright/lib/internal/asyncPlaceholder');27const { Page, Worker } = require('playwright/lib/server/page');28const { BrowserContext } = require('playwright/lib/server/browserContext');29const { Browser } =

Using AI Code Generation

1const { createAsyncPlaceholder } = require('@playwright/test/lib/server/frames');2const page = await context.newPage();3const frame = await page.mainFrame();4const elementHandle = await frame.$('button');5const asyncPlaceholder = await createAsyncPlaceholder(elementHandle);6const { createAsyncPlaceholder } = require('@playwright/test/lib/server/frames');7const page = await context.newPage();8const frame = await page.mainFrame();9const elementHandle = await frame.$('button');10const asyncPlaceholder = await createAsyncPlaceholder(elementHandle);11const text = await asyncPlaceholder.evaluate(element => element.textContent);12const { createAsyncPlaceholder } = require('@playwright/test/lib/server/frames');13const page = await context.newPage();14const frame = await page.mainFrame();15const elementHandle = await frame.$('button');16const asyncPlaceholder = await createAsyncPlaceholder(elementHandle);17const text = await asyncPlaceholder.evaluate(element => element.textContent);18await asyncPlaceholder.dispose();19const { createAsyncPlaceholder } = require('@playwright/test/lib/server/frames');20const page = await context.newPage();21const frame = await page.mainFrame();22const elementHandle = await frame.$('button');23const asyncPlaceholder = await createAsyncPlaceholder(elementHandle);24const text = await asyncPlaceholder.evaluate(element => element.textContent);25await asyncPlaceholder.dispose();26await page.close();27const { createAsyncPlaceholder } = require('@playwright/test/lib/server/frames');28const page = await context.newPage();29const frame = await page.mainFrame();30const elementHandle = await frame.$('button');31const asyncPlaceholder = await createAsyncPlaceholder(elementHandle);32const text = await asyncPlaceholder.evaluate(element => element.textContent);33await asyncPlaceholder.dispose();34await page.close();35await context.close();36const { createAsyncPlaceholder } = require('@playwright/test/lib/server/frames');37const page = await context.newPage();38const frame = await page.mainFrame();39const elementHandle = await frame.$('button');40const asyncPlaceholder = await createAsyncPlaceholder(element

Using AI Code Generation

1const { createAsyncPlaceholder } = require('playwright/lib/server/asyncPlaceholder');2const placeholder = createAsyncPlaceholder();3const result = await asyncOperation();4placeholder.resolve(result);5return placeholder;6const { test } = require('./test');7test();8const { test } = require('./test');9test();10expect(result).toBe('foo');11  ✓ test (10 ms)

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.