How to use flushDiscreteUpdates method in Playwright Internal

Best JavaScript code snippet using playwright-internal

index.js

Source: index.js Github

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1const data = `2/​**3 * Copyright (c) Facebook, Inc. and its affiliates.4 *5 * This source code is licensed under the MIT license found in the6 * LICENSE file in the root directory of this source tree.7 *8 * @flow9 */​10import type {ReactNodeList} from 'shared/​ReactTypes';11import type {Container} from './​ReactDOMHostConfig';12import '../​shared/​checkReact';13import './​ReactDOMClientInjection';14import {15 findDOMNode,16 render,17 hydrate,18 unstable_renderSubtreeIntoContainer,19 unmountComponentAtNode,20} from './​ReactDOMLegacy';21import {createRoot, createBlockingRoot, isValidContainer} from './​ReactDOMRoot';22import {23 batchedEventUpdates,24 batchedUpdates,25 discreteUpdates,26 flushDiscreteUpdates,27 flushSync,28 flushControlled,29 injectIntoDevTools,30 flushPassiveEffects,31 IsThisRendererActing,32 attemptSynchronousHydration,33 attemptUserBlockingHydration,34 attemptContinuousHydration,35 attemptHydrationAtCurrentPriority,36} from 'react-reconciler/​src/​ReactFiberReconciler';37import {createPortal as createPortalImpl} from 'react-reconciler/​src/​ReactPortal';38import {canUseDOM} from 'shared/​ExecutionEnvironment';39import {40 eventNameDispatchConfigs,41 injectEventPluginsByName,42} from 'legacy-events/​EventPluginRegistry';43import ReactVersion from 'shared/​ReactVersion';44import invariant from 'shared/​invariant';45import {warnUnstableRenderSubtreeIntoContainer} from 'shared/​ReactFeatureFlags';46import {47 getInstanceFromNode,48 getNodeFromInstance,49 getFiberCurrentPropsFromNode,50 getClosestInstanceFromNode,51} from './​ReactDOMComponentTree';52import {restoreControlledState} from './​ReactDOMComponent';53import {dispatchEvent} from '../​events/​ReactDOMEventListener';54import {55 setAttemptSynchronousHydration,56 setAttemptUserBlockingHydration,57 setAttemptContinuousHydration,58 setAttemptHydrationAtCurrentPriority,59 queueExplicitHydrationTarget,60} from '../​events/​ReactDOMEventReplaying';61import {setBatchingImplementation} from '../​events/​ReactDOMUpdateBatching';62import {63 setRestoreImplementation,64 enqueueStateRestore,65 restoreStateIfNeeded,66} from '../​events/​ReactDOMControlledComponent';67setAttemptSynchronousHydration(attemptSynchronousHydration);68setAttemptUserBlockingHydration(attemptUserBlockingHydration);69setAttemptContinuousHydration(attemptContinuousHydration);70setAttemptHydrationAtCurrentPriority(attemptHydrationAtCurrentPriority);71let didWarnAboutUnstableCreatePortal = false;72let didWarnAboutUnstableRenderSubtreeIntoContainer = false;73if (__DEV__) {74 if (75 typeof Map !== 'function' ||76 /​/​ $FlowIssue Flow incorrectly thinks Map has no prototype77 Map.prototype == null ||78 typeof Map.prototype.forEach !== 'function' ||79 typeof Set !== 'function' ||80 /​/​ $FlowIssue Flow incorrectly thinks Set has no prototype81 Set.prototype == null ||82 typeof Set.prototype.clear !== 'function' ||83 typeof Set.prototype.forEach !== 'function'84 ) {85 console.error(86 'React depends on Map and Set built-in types. Make sure that you load a ' +87 'polyfill in older browsers. https:/​/​fb.me/​react-polyfills',88 );89 }90}91setRestoreImplementation(restoreControlledState);92setBatchingImplementation(93 batchedUpdates,94 discreteUpdates,95 flushDiscreteUpdates,96 batchedEventUpdates,97);98function createPortal(99 children: ReactNodeList,100 container: Container,101 key: ?string = null,102): React$Portal {103 invariant(104 isValidContainer(container),105 'Target container is not a DOM element.',106 );107 /​/​ TODO: pass ReactDOM portal implementation as third argument108 /​/​ $FlowFixMe The Flow type is opaque but there's no way to actually create it.109 return createPortalImpl(children, container, null, key);110}111function scheduleHydration(target: Node) {112 if (target) {113 queueExplicitHydrationTarget(target);114 }115}116function renderSubtreeIntoContainer(117 parentComponent: React$Component<any, any>,118 element: React$Element<any>,119 containerNode: Container,120 callback: ?Function,121) {122 if (__DEV__) {123 if (124 warnUnstableRenderSubtreeIntoContainer &&125 !didWarnAboutUnstableRenderSubtreeIntoContainer126 ) {127 didWarnAboutUnstableRenderSubtreeIntoContainer = true;128 console.warn(129 'ReactDOM.unstable_renderSubtreeIntoContainer() is deprecated ' +130 'and will be removed in a future major release. Consider using ' +131 'React Portals instead.',132 );133 }134 }135 return unstable_renderSubtreeIntoContainer(136 parentComponent,137 element,138 containerNode,139 callback,140 );141}142function unstable_createPortal(143 children: ReactNodeList,144 container: Container,145 key: ?string = null,146) {147 if (__DEV__) {148 if (!didWarnAboutUnstableCreatePortal) {149 didWarnAboutUnstableCreatePortal = true;150 console.warn(151 'The ReactDOM.unstable_createPortal() alias has been deprecated, ' +152 'and will be removed in React 17+. Update your code to use ' +153 'ReactDOM.createPortal() instead. It has the exact same API, ' +154 'but without the "unstable_" prefix.',155 );156 }157 }158 return createPortal(children, container, key);159}160const Internals = {161 /​/​ Keep in sync with ReactTestUtils.js, and ReactTestUtilsAct.js.162 /​/​ This is an array for better minification.163 Events: [164 getInstanceFromNode,165 getNodeFromInstance,166 getFiberCurrentPropsFromNode,167 injectEventPluginsByName,168 eventNameDispatchConfigs,169 enqueueStateRestore,170 restoreStateIfNeeded,171 dispatchEvent,172 flushPassiveEffects,173 IsThisRendererActing,174 ],175};176export {177 createPortal,178 batchedUpdates as unstable_batchedUpdates,179 flushSync,180 Internals as __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED,181 ReactVersion as version,182 /​/​ Disabled behind disableLegacyReactDOMAPIs183 findDOMNode,184 hydrate,185 render,186 unmountComponentAtNode,187 /​/​ exposeConcurrentModeAPIs188 createRoot,189 createBlockingRoot,190 discreteUpdates as unstable_discreteUpdates,191 flushDiscreteUpdates as unstable_flushDiscreteUpdates,192 flushControlled as unstable_flushControlled,193 scheduleHydration as unstable_scheduleHydration,194 /​/​ Disabled behind disableUnstableRenderSubtreeIntoContainer195 renderSubtreeIntoContainer as unstable_renderSubtreeIntoContainer,196 /​/​ Disabled behind disableUnstableCreatePortal197 /​/​ Temporary alias since we already shipped React 16 RC with it.198 /​/​ TODO: remove in React 17.199 unstable_createPortal,200};201const foundDevTools = injectIntoDevTools({202 findFiberByHostInstance: getClosestInstanceFromNode,203 bundleType: __DEV__ ? 1 : 0,204 version: ReactVersion,205 rendererPackageName: 'react-dom',206});207if (__DEV__) {208 if (!foundDevTools && canUseDOM && window.top === window.self) {209 /​/​ If we're in Chrome or Firefox, provide a download link if not installed.210 if (211 (navigator.userAgent.indexOf('Chrome') > -1 &&212 navigator.userAgent.indexOf('Edge') === -1) ||213 navigator.userAgent.indexOf('Firefox') > -1214 ) {215 const protocol = window.location.protocol;216 /​/​ Don't warn in exotic cases like chrome-extension:/​/​.217 if (/​^(https?|file):$/​.test(protocol)) {218 /​/​ eslint-disable-next-line react-internal/​no-production-logging219 console.info(220 '%cDownload the React DevTools ' +221 'for a better development experience: ' +222 'https:/​/​fb.me/​react-devtools' +223 (protocol === 'file:'224 ? '\nYou might need to use a local HTTP server (instead of file:/​/​): ' +225 'https:/​/​fb.me/​react-devtools-faq'226 : ''),227 'font-weight:bold',228 );229 }230 }231 }232}233`;234/​**235 * @param {string} character236 */​237const tokenizer = (character) => {238 if (character.match(/​\n/​)) {239 return "newline";240 }241 if (character.match(/​\s/​)) {242 return "space";243 }244 return character.charCodeAt(0);245};246const tokens = data.split(/​\w/​).map((character) => {247 return tokenizer(character);248});249const entryPoint = document.getElementById("entry");250const colors = ["#a9def9", "#ede7b1", "#f694c1", "#e4c1f9", "#d3f8e2"];251tokens.forEach((token) => {252 const block = document.createElement("div");253 if (token.toString() !== "newline") {254 block.className = `block ${token.toString()}`;255 const color = colors[Math.floor(Math.random() * colors.length)];256 block.style.background = color;257 } else block.className = "newline";258 entryPoint.appendChild(block);...

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ReactDOM.js

Source: ReactDOM.js Github

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1import './​ReactDOMClientInjection';2import { findDOMNode, render, hydrate, unmountComponentAtNode } from './​ReactDOMLegacy';3import { createRoot, createBlockingRoot } from './​ReactDOMRoot';4import {5 batchedEventUpdates,6 batchedUpdates,7 discreteUpdates,8 flushDiscreteUpdates,9 flushSync,10 attemptSynchronousHydration,11 attemptUserBlockingHydration,12 attemptContinuousHydration,13 attemptHydrationAtCurrentPriority,14} from 'react-reconciler/​src/​ReactFiberReconciler';15import { createPortal as createPortalImpl } from 'react-reconciler/​src/​ReactPortal';16import { restoreControlledState } from './​ReactDOMComponent';17import {18 setAttemptSynchronousHydration,19 setAttemptUserBlockingHydration,20 setAttemptContinuousHydration,21 setAttemptHydrationAtCurrentPriority,22} from '../​events/​ReactDOMEventReplaying';23import { setBatchingImplementation } from '../​events/​ReactDOMUpdateBatching';24import { setRestoreImplementation } from '../​events/​ReactDOMControlledComponent';25setAttemptSynchronousHydration(attemptSynchronousHydration);26setAttemptUserBlockingHydration(attemptUserBlockingHydration);27setAttemptContinuousHydration(attemptContinuousHydration);28setAttemptHydrationAtCurrentPriority(attemptHydrationAtCurrentPriority);29setRestoreImplementation(restoreControlledState);30setBatchingImplementation(31 batchedUpdates,32 discreteUpdates,33 flushDiscreteUpdates,34 batchedEventUpdates35);36function createPortal(children, container, key) {37 return createPortalImpl(children, container, null, key);38}39export {40 createPortal,41 flushSync,42 findDOMNode,43 hydrate,44 render,45 unmountComponentAtNode,46 createRoot,47 createBlockingRoot,...

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ReactNoopPersistent.js

Source: ReactNoopPersistent.js Github

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1/​**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @flow8 */​9/​**10 * This is a renderer of React that doesn't have a render target output.11 * It is useful to demonstrate the internals of the reconciler in isolation12 * and for testing semantics of reconciliation separate from the host13 * environment.14 */​15import ReactFiberReconciler from 'react-reconciler';16import createReactNoop from './​createReactNoop';17export const {18 _Scheduler,19 getChildren,20 getPendingChildren,21 getOrCreateRootContainer,22 createRoot,23 createLegacyRoot,24 getChildrenAsJSX,25 getPendingChildrenAsJSX,26 createPortal,27 render,28 renderLegacySyncRoot,29 renderToRootWithID,30 unmountRootWithID,31 findInstance,32 flushNextYield,33 flushWithHostCounters,34 expire,35 flushExpired,36 batchedUpdates,37 deferredUpdates,38 discreteUpdates,39 idleUpdates,40 flushDiscreteUpdates,41 flushSync,42 flushPassiveEffects,43 act,44 dumpTree,45 getRoot,46 /​/​ TODO: Remove this once callers migrate to alternatives.47 /​/​ This should only be used by React internals.48 unstable_runWithPriority,49} = createReactNoop(50 ReactFiberReconciler, /​/​ reconciler51 false, /​/​ useMutation...

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ReactNoop.js

Source: ReactNoop.js Github

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1/​**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @flow8 */​9/​**10 * This is a renderer of React that doesn't have a render target output.11 * It is useful to demonstrate the internals of the reconciler in isolation12 * and for testing semantics of reconciliation separate from the host13 * environment.14 */​15import ReactFiberReconciler from 'react-reconciler';16import createReactNoop from './​createReactNoop';17export const {18 _Scheduler,19 getChildren,20 getPendingChildren,21 getOrCreateRootContainer,22 createRoot,23 createBlockingRoot,24 createLegacyRoot,25 getChildrenAsJSX,26 getPendingChildrenAsJSX,27 createPortal,28 render,29 renderLegacySyncRoot,30 renderToRootWithID,31 unmountRootWithID,32 findInstance,33 flushNextYield,34 flushWithHostCounters,35 expire,36 flushExpired,37 batchedUpdates,38 deferredUpdates,39 unbatchedUpdates,40 discreteUpdates,41 flushDiscreteUpdates,42 flushSync,43 flushPassiveEffects,44 act,45 dumpTree,46 getRoot,47 /​/​ TODO: Remove this after callers migrate to alternatives.48 unstable_runWithPriority,49} = createReactNoop(50 ReactFiberReconciler, /​/​ reconciler51 true, /​/​ useMutation...

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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.fill('input[aria-label="Search"]', 'Hello World');7 await page.keyboard.press('Enter');8 await page.waitForNavigation();9 await page.screenshot({ path: 'example.png' });10 await browser.close();11})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.evaluate(() => {7 const input = document.querySelector('input[name="q"]');8 input.value = 'Hello World';9 input.dispatchEvent(new Event('input', { bubbles: true }));10 });11 await page.flushDiscreteUpdates();12 await page.screenshot({ path: `example.png` });13 await browser.close();14})();15const { chromium } = require('playwright');16(async () => {17 const browser = await chromium.launch({ headless: false });18 const context = await browser.newContext();19 const page = await context.newPage();20 await page.evaluate(() => {21 const input = document.querySelector('input[name="q"]');22 input.value = 'Hello World';23 input.dispatchEvent(new Event('input', { bubbles: true }));24 });25 await page.flushDiscreteUpdates();26 await page.screenshot({ path: `example.png` });27 await browser.close();28})();29const { chromium } = require('playwright');30(async () => {31 const browser = await chromium.launch({ headless: false });32 const context = await browser.newContext();33 const page = await context.newPage();34 await page.evaluate(() => {35 const input = document.querySelector('input[name="q"]');36 input.value = 'Hello World';37 input.dispatchEvent(new Event('input', { bubbles: true }));38 });39 await page.flushDiscreteUpdates();40 await page.screenshot({ path: `example.png` });41 await browser.close();42})();43const { chromium } = require('playwright');44(async () => {45 const browser = await chromium.launch({ headless: false });46 const context = await browser.newContext();

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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.focus('input[name="q"]');7 await page.keyboard.type('hello');8 await page.keyboard.press('Enter');9 await page.waitForNavigation();10 await page.screenshot({ path: `example.png` });11 await browser.close();12})();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 await page.focus('input[name="q"]');19 await page.keyboard.type('hello');20 await page.keyboard.press('Enter');21 await page.waitForNavigation();22 await page.screenshot({ path: `example.png` });23 await browser.close();24})();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 await page.focus('input[name="q"]');31 await page.keyboard.type('hello');32 await page.keyboard.press('Enter');33 await page.waitForNavigation();34 await page.screenshot({ path: `example.png` });35 await browser.close();36})();37const { chromium } = require('playwright');38(async () => {39 const browser = await chromium.launch();40 const context = await browser.newContext();41 const page = await context.newPage();42 await page.focus('input[name="q"]');43 await page.keyboard.type('hello');44 await page.keyboard.press('Enter');45 await page.waitForNavigation();46 await page.screenshot({ path: `example.png` });47 await browser.close();48})();

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Using AI Code Generation

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1const { flushDiscreteUpdates } = require('playwright');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 await page.fill('input[name="q"]', 'playwright');7 await page.click('text=Google Search');8 await flushDiscreteUpdates();9 await page.screenshot({ path: `example.png` });10 await browser.close();11})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.goto('

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1"scripts": {2}3 console.log(response);4 response.json().then((json) => {5 console.log(json);6 });7});8I have tried using the try/​catch method but it doesn't work. I have also tried using the .catch() method but it doesn't work either. I am using the following versions:9 console.log(response);10});11I have tried using the try/​catch method but it doesn't work. I have also tried using the .catch() method but it doesn't work either. I am using the following versions:

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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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