Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use markRootMutableRead method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactFiberHooks.new.js

Source:ReactFiberHooks.new.js

...747      const maybeNewSnapshot = getSnapshot(source._source);748      if (!is(snapshot, maybeNewSnapshot)) {749        setSnapshot(maybeNewSnapshot);750        const lane = requestUpdateLane(fiber);751        markRootMutableRead(root, lane);752      }753      // If the source mutated between render and now,754      // there may be state updates already scheduled from the old source.755      // Entangle the updates so that they render in the same batch.756      markRootEntangled(root, root.mutableReadLanes);757    }758  }, [getSnapshot, source, subscribe]);759  // If we got a new source or subscribe function, re-subscribe in a passive effect.760  dispatcher.useEffect(() => {761    const handleChange = () => {762      const latestGetSnapshot = refs.getSnapshot;763      const latestSetSnapshot = refs.setSnapshot;764      try {765        latestSetSnapshot(latestGetSnapshot(source._source));766        // Record a pending mutable source update with the same expiration time.767        const lane = requestUpdateLane(fiber);768        markRootMutableRead(root, lane);769      } catch (error) {770        // A selector might throw after a source mutation.771        // e.g. it might try to read from a part of the store that no longer exists.772        // In this case we should still schedule an update with React.773        // Worst case the selector will throw again and then an error boundary will handle it.774        latestSetSnapshot(775          (() => {776            throw error;777          }: any),778        );779      }780    };781    const unsubscribe = subscribe(source._source, handleChange);782    return unsubscribe;...

ReactFiberHooks.old.js

Source:ReactFiberHooks.old.js

...671      const maybeNewSnapshot = getSnapshot(source._source);672      if (!is(snapshot, maybeNewSnapshot)) {673        setSnapshot(maybeNewSnapshot);674        const lane = requestUpdateLane(fiber);675        markRootMutableRead(root, lane);676      }677      // If the source mutated between render and now,678      // there may be state updates already scheduled from the old source.679      // Entangle the updates so that they render in the same batch.680      markRootEntangled(root, root.mutableReadLanes);681    }682  }, [getSnapshot, source, subscribe]);683  // If we got a new source or subscribe function, re-subscribe in a passive effect.684  dispatcher.useEffect(() => {685    const handleChange = () => {686      const latestGetSnapshot = refs.getSnapshot;687      const latestSetSnapshot = refs.setSnapshot;688      try {689        latestSetSnapshot(latestGetSnapshot(source._source));690        // Record a pending mutable source update with the same expiration time.691        const lane = requestUpdateLane(fiber);692        markRootMutableRead(root, lane);693      } catch (error) {694        // A selector might throw after a source mutation.695        // e.g. it might try to read from a part of the store that no longer exists.696        // In this case we should still schedule an update with React.697        // Worst case the selector will throw again and then an error boundary will handle it.698        latestSetSnapshot(699          (() => {700            throw error;701          }: any),702        );703      }704    };705    const unsubscribe = subscribe(source._source, handleChange);706    return unsubscribe;...

ReactFiberLane.old.js

Source:ReactFiberLane.old.js

...541  const SyncLaneIndex = 0;542  const entanglements = root.entanglements;543  return (entanglements[SyncLaneIndex] & lanes) !== NoLanes;544}545export function markRootMutableRead(root: FiberRoot, updateLane: Lane) {546  root.mutableReadLanes |= updateLane & root.pendingLanes;547}548export function markRootFinished(root: FiberRoot, remainingLanes: Lanes) {549  const noLongerPendingLanes = root.pendingLanes & ~remainingLanes;550  root.pendingLanes = remainingLanes;551  // Let's try everything again552  root.suspendedLanes = 0;553  root.pingedLanes = 0;554  root.mutableReadLanes &= remainingLanes;555  root.entangledLanes &= remainingLanes;556  if (enableCache) {557    const pooledCacheLanes = (root.pooledCacheLanes &= remainingLanes);558    if (pooledCacheLanes === NoLanes) {559      // None of the remaining work relies on the cache pool. Clear it so...

ReactFiberLane.new.js

Source:ReactFiberLane.new.js

...541  const SyncLaneIndex = 0;542  const entanglements = root.entanglements;543  return (entanglements[SyncLaneIndex] & lanes) !== NoLanes;544}545export function markRootMutableRead(root: FiberRoot, updateLane: Lane) {546  root.mutableReadLanes |= updateLane & root.pendingLanes;547}548export function markRootFinished(root: FiberRoot, remainingLanes: Lanes) {549  const noLongerPendingLanes = root.pendingLanes & ~remainingLanes;550  root.pendingLanes = remainingLanes;551  // Let's try everything again552  root.suspendedLanes = 0;553  root.pingedLanes = 0;554  root.mutableReadLanes &= remainingLanes;555  root.entangledLanes &= remainingLanes;556  if (enableCache) {557    const pooledCacheLanes = (root.pooledCacheLanes &= remainingLanes);558    if (pooledCacheLanes === NoLanes) {559      // None of the remaining work relies on the cache pool. Clear it so...

ReactFiberLane.js

Source:ReactFiberLane.js

...577  }578  function hasDiscreteLanes(lanes) {579    return (lanes & InputDiscreteLanes) !== NoLanes;580  }581  function markRootMutableRead(root, updateLane) {582    root.mutableReadLanes |= updateLane & root.pendingLanes;583  }584  function markRootFinished(root, remainingLanes) {585    var noLongerPendingLanes = root.pendingLanes & ~remainingLanes;586    root.pendingLanes = remainingLanes; // Let's try everything again587    root.suspendedLanes = 0;588    root.pingedLanes = 0;589    root.expiredLanes &= remainingLanes;590    root.mutableReadLanes &= remainingLanes;591    root.entangledLanes &= remainingLanes;592    var entanglements = root.entanglements;593    var eventTimes = root.eventTimes;594    var expirationTimes = root.expirationTimes; // Clear the lanes that no longer have pending work595    var lanes = noLongerPendingLanes;...

Using AI Code Generation

1const playwright = require('playwright');2(async () => {3  const browser = await playwright.chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.evaluate(() => {7    window['playwright'].markRootMutableRead();8  });9  await page.screenshot({ path: 'example.png' });10  await browser.close();11})();12const playwright = require('playwright');13(async () => {14  const browser = await playwright.chromium.launch();15  const context = await browser.newContext();16  const page = await context.newPage();17  await page.evaluate(() => {18    window['playwright'].markRootMutableRead();19  });20  await page.screenshot({ path: 'example.png' });21  await browser.close();22})();23const playwright = require('playwright');24(async () => {25  const browser = await playwright.chromium.launch();26  const context = await browser.newContext();27  const page = await context.newPage();28  await page.evaluate(() => {29    window['playwright'].markRootMutableRead();30  });31  await page.screenshot({ path: 'example.png' });32  await browser.close();33})();34const playwright = require('playwright');35(async () => {36  const browser = await playwright.chromium.launch();37  const context = await browser.newContext();38  const page = await context.newPage();39  await page.evaluate(() => {40    window['playwright'].markRootMutableRead();41  });42  await page.screenshot({ path: 'example.png' });43  await browser.close();44})();45I am using the latest version of Playwright (1.14.1) and I am still

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  await page.waitForSelector('text=Google');7  await page.markRootMutableRead();8  await page.screenshot({ path: `example.png` });9  await browser.close();10})();11const {chromium} = require('playwright');12(async () => {13  const browser = await chromium.launch();14  const context = await browser.newContext();15  const page = await context.newPage();16  await page.waitForSelector('text=Google');17  await page.markRootMutableWrite();18  await page.screenshot({ path: `example.png` });19  await browser.close();20})();21const {chromium} = require('playwright');22(async () => {23  const browser = await chromium.launch();24  const context = await browser.newContext();25  const page = await context.newPage();26  await page.waitForSelector('text=Google');27  await page.markElementMutableRead('text=Google');28  await page.screenshot({ path: `example.png` });29  await browser.close();30})();31const {chromium} = require('playwright');32(async () => {33  const browser = await chromium.launch();34  const context = await browser.newContext();35  const page = await context.newPage();36  await page.waitForSelector('text=Google');37  await page.markElementMutableWrite('text=Google');38  await page.screenshot({ path: `example.png` });39  await browser.close();40})();41const {chromium} = require('playwright');42(async () => {43  const browser = await chromium.launch();44  const context = await browser.newContext();45  const page = await context.newPage();46  await page.waitForSelector('text=Google

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  const context = page.context();6  await context.markRootMutableRead();7  await browser.close();8})();9I hope this article helped you to understand how to use the markRootMutableRead() method in Playwright. You can also read our other articles on Playwright:

Using AI Code Generation

1const { webkit } = require('playwright');2const { markRootMutableRead } = require('playwright/lib/internal/permissions');3(async () => {4  const browser = await webkit.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  await markRootMutableRead(page);8  await page.screenshot({ path: 'webdev.png' });9  await browser.close();10})();

Using AI Code Generation

1const { chromium } = require('playwright');2const { markRootMutableRead } = require('playwright/lib/server/supplements/recorder/recorderApp');3(async () => {4const browser = await chromium.launch({ headless: false });5const context = await browser.newContext();6const page = await context.newPage();7await markRootMutableRead(page);8await page.click('text=Sign in');9await page.fill('input[name="identifier"]', '

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 elementHandle = await page.$('text=Get Started');7  await page.evaluate(element => element.markRootMutableRead(), elementHandle);8  await page.screenshot({ path: 'example.png' });9  await browser.close();10})();11const { chromium } = require('playwright');12(async () => {13  const browser = await chromium.launch();14  const context = await browser.newContext();15  const page = await context.newPage();16  const elementHandle = await page.$('text=Get Started');17  await page.evaluate(element => element.markRootMutableRead(), elementHandle);18  await page.screenshot({ path: 'example.png' });19  await browser.close();20})();21const { chromium } = require('playwright');22(async () => {23  const browser = await chromium.launch();24  const context = await browser.newContext();25  const page = await context.newPage();26  const elementHandle = await page.$('text=Get Started');27  await page.evaluate(element => element.markRootMutableRead(), elementHandle);28  await page.screenshot({ path: 'example.png' });29  await browser.close();30})();31const { chromium } = require('playwright');32(async () => {33  const browser = await chromium.launch();34  const context = await browser.newContext();35  const page = await context.newPage();36  const elementHandle = await page.$('text=Get Started');37  await page.evaluate(element => element.markRootMutableRead(), elementHandle);38  await page.screenshot({ path: 'example.png' });39  await browser.close();40})();

Using AI Code Generation

1const { markRootMutableRead } = require('playwright/lib/internal/utils');2markRootMutableRead('test.js');3const { test } = require('@playwright/test');4test('test', async ({ page }) => {5    const { markRootMutableRead } = require('playwright/lib/internal/utils');6    markRootMutableRead('test.spec.js');7});

Using AI Code Generation

1To use the above code, the user must first import the Playwright internal API. The user can import the Playwright internal API using the following code:2import { InternalAPI } from "playwright";3To use the above code, the user must first import the Playwright internal API. The user can import the Playwright internal API using the following code:4import { InternalAPI } from "playwright";5To use the above code, the user must first import the Playwright internal API. The user can import the Playwright internal API using the following code:6import { InternalAPI } from "playwright";7To use the above code, the user must first import the Playwright internal API. The user can import the Playwright internal API using the following code:8import { InternalAPI } from "playwright";9To use the above code, the user must first import the Playwright internal API. The user can import the Playwright internal API using the following code:10import { InternalAPI } from "playwright";11To use the above code, the user must first import the Playwright internal API. The

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.