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

How to use queueMicrotaskByMutationObserver method in wpt

Best JavaScript code snippet using wpt

gc-has-one-chance-to-call-cleanupCallback-queueMicrotaskMutationObserver.optional.window.js

Source:gc-has-one-chance-to-call-cleanupCallback-queueMicrotaskMutationObserver.optional.window.js

...33  let prom = maybeGarbageCollectAndCleanupAsync(target);34  target = null;35  return prom;36}37function queueMicrotaskByMutationObserver(callback) {38  const textNode = document.createTextNode('');39  new MutationObserver(callback).observe(textNode, { characterData: true });40  textNode.data = 1;41}42promise_test(() => {43  return (async () => {44    assert_implements(45      typeof FinalizationRegistry.prototype.cleanupSome === 'function',46      'FinalizationRegistry.prototype.cleanupSome is not implemented.'47    );48    assert_implements(49      typeof MutationObserver === 'function',50      'MutationObserver is not implemented.'51    );52    let ticks = 0;53    await emptyCells();54    await queueMicrotaskByMutationObserver(() => ticks++);55    finalizationRegistry.cleanupSome(cb);56    // cleanupSome will be invoked if there are empty cells left. If the57    // cleanupCallback already ran, then cb won't be called.58    let expectedCalled = cleanupCallback === 1 ? 0 : 1;59    // This asserts the registered object was emptied in the previous GC.60    assert_equals(holdings.length, expectedCalled, 'cleanupSome callback for the first time');61    // At this point, we can't assert if cleanupCallback was called, because it's62    // optional. Although, we can finally assert it's not gonna be called anymore63    // for the other executions of the Garbage Collector.64    // The chance of having it called only happens right after the65    // cell.[[Target]] is set to empty.66    assert_true(cleanupCallback >= 0, 'cleanupCallback might be 0');67    assert_true(cleanupCallback <= 1, 'cleanupCallback might be 1');68    // Restoring the cleanupCallback variable to 0 will help us asserting the69    // finalizationRegistry callback is not called again.70    cleanupCallback = 0;71    await maybeGarbageCollectAsync();72    await queueMicrotaskByMutationObserver(() => ticks++);73    finalizationRegistry.cleanupSome(cb);74    assert_equals(holdings.length, expectedCalled, 'cleanupSome callback is not called anymore, no empty cells');75    assert_equals(cleanupCallback, 0, 'cleanupCallback is not called again #1');76    await maybeGarbageCollectAsync();77    await queueMicrotaskByMutationObserver(() => ticks++);78    finalizationRegistry.cleanupSome(cb);79    assert_equals(holdings.length, expectedCalled, 'cleanupSome callback is not called again #2');80    assert_equals(cleanupCallback, 0, 'cleanupCallback is not called again #2');81    assert_equals(ticks, 3, 'ticks is 3');82    if (holdings.length) {83      assert_array_equals(holdings, ['a']);84    }85    await maybeGarbageCollectAsync();86  })().catch(resolveGarbageCollection);...

Using AI Code Generation

1import { queueMicrotaskByMutationObserver } from 'wpt-queue-microtask'2import { queueMicrotaskByPromise } from 'wpt-queue-microtask'3import { queueMicrotaskByPostMessage } from 'wpt-queue-microtask'4queueMicrotaskByMutationObserver(() => {5  console.log('queueMicrotaskByMutationObserver')6})7queueMicrotaskByPromise(() => {8  console.log('queueMicrotaskByPromise')9})10queueMicrotaskByPostMessage(() => {11  console.log('queueMicrotaskByPostMessage')12})13[MIT](LICENSE)

Using AI Code Generation

1let wptoolkit = require('wptoolkit');2let queueMicrotaskByMutationObserver = wptoolkit.queueMicrotaskByMutationObserver;3let queueMicrotaskByPromise = wptoolkit.queueMicrotaskByPromise;4let queueMicrotaskByMessageChannel = wptoolkit.queueMicrotaskByMessageChannel;5let queueMicrotaskByProcessNextTick = wptoolkit.queueMicrotaskByProcessNextTick;6let queueMicrotaskBySetImmediate = wptoolkit.queueMicrotaskBySetImmediate;7let queueMicrotaskByPostMessage = wptoolkit.queueMicrotaskByPostMessage;8let queueMicrotaskBySetTimeout = wptoolkit.queueMicrotaskBySetTimeout;9let queueMicrotaskByDomContentLoaded = wptoolkit.queueMicrotaskByDomContentLoaded;10queueMicrotaskByMutationObserver(function () {11    console.log('queueMicrotaskByMutationObserver');12});13queueMicrotaskByPromise(function () {14    console.log('queueMicrotaskByPromise');15});16queueMicrotaskByMessageChannel(function () {17    console.log('queueMicrotaskByMessageChannel');18});19queueMicrotaskByProcessNextTick(function () {20    console.log('queueMicrotaskByProcessNextTick');21});22queueMicrotaskBySetImmediate(function () {23    console.log('queueMicrotaskBySetImmediate');24});25queueMicrotaskByPostMessage(function () {26    console.log('queueMicrotaskByPostMessage');27});28queueMicrotaskBySetTimeout(function () {29    console.log('queueMicrotaskBySetTimeout');30});31queueMicrotaskByDomContentLoaded(function () {32    console.log('queueMicrotaskByDomContentLoaded');33});34queueMicrotaskByMutationObserver(function () {

Using AI Code Generation

1import { queueMicrotaskByMutationObserver } from 'wpt-queue-microtask'2queueMicrotaskByMutationObserver(() => {3  console.log('Hello')4})5import { queueMicrotaskByMutationObserver } from 'wpt-queue-microtask'6queueMicrotask(() => {7  console.log('Hello')8})9import { queueMicrotaskByPromise } from 'wpt-queue-microtask'10queueMicrotaskByPromise(() => {11  console.log('Hello')12})13import { queueMicrotaskByPromise } from 'wpt-queue-microtask'14queueMicrotask(() => {15  console.log('Hello')16})17import { queueMicrotaskByPostMessage } from 'wpt-queue-microtask'18queueMicrotaskByPostMessage(() => {19  console.log('Hello')20})21import { queueMicrotaskByPostMessage } from 'wpt-queue-microtask'22queueMicrotask(() => {23  console.log('Hello')24})25import { queueMicrotaskByMessageChannel } from 'wpt-queue-microtask'26queueMicrotaskByMessageChannel(() => {27  console.log('Hello')28})29import { queueMicrotaskByMessageChannel } from 'wpt-queue-microtask'30queueMicrotask(() => {31  console.log('Hello')32})33import { queueMicrotaskBySetImmediate } from 'wpt-queue-microtask'34queueMicrotaskBySetImmediate(() => {35  console.log('Hello')36})37import { queueMicrotaskBySetImmediate } from 'wpt-queue-microtask'

Using AI Code Generation

1queueMicrotaskByMutationObserver(function() {2  console.log('This will be logged after the current task');3});4queueMicrotaskByMessageChannel(function() {5  console.log('This will be logged after the current task');6});7queueMicrotaskByPromise(function() {8  console.log('This will be logged after the current task');9});10This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details

Using AI Code Generation

1queueMicrotaskByMutationObserver(() => {2  console.log("This is a microtask");3});4queueMicrotaskByPromise(() => {5  console.log("This is a microtask");6});7queueMicrotaskByMessageChannel(() => {8  console.log("This is a microtask");9});10queueMicrotaskByPostMessage(() => {11  console.log("This is a microtask");12});13queueMicrotaskBySetImmediate(() => {14  console.log("This is a microtask");15});16queueMicrotaskBySetTimeout(() => {17  console.log("This is a microtask");18});19queueMicrotaskByNextTick(() => {20  console.log("This is a microtask");21});22queueMicrotaskByRequestAnimationFrame(() => {23  console.log("This is a microtask");24});25queueMicrotaskByCustomEvent(() => {26  console.log("This is a

Using AI Code Generation

1queueMicrotaskByMutationObserver(function() {2  console.log('microtask1');3});4queueMicrotaskByMutationObserver(function() {5  console.log('microtask2');6});7console.log('script');

Using AI Code Generation

1import {queueMicrotaskByMutationObserver} from 'wpt-queue-microtask';2const microtask = () => {3  console.log('microtask');4};5queueMicrotaskByMutationObserver(microtask);6const microtask2 = () => {7  console.log('microtask2');8};9queueMicrotaskByMutationObserver(microtask2);10const microtask3 = () => {11  console.log('microtask3');12};13queueMicrotaskByMutationObserver(microtask3);14const microtask4 = () => {15  console.log('microtask4');16};17queueMicrotaskByMutationObserver(microtask4);18const microtask5 = () => {19  console.log('microtask5');20};21queueMicrotaskByMutationObserver(microtask5);22const microtask6 = () => {23  console.log('microtask6');24};25queueMicrotaskByMutationObserver(microtask6);26const microtask7 = () => {27  console.log('microtask7');28};29queueMicrotaskByMutationObserver(microtask7);30const microtask8 = () => {31  console.log('microtask8');32};33queueMicrotaskByMutationObserver(microtask8);34const microtask9 = () => {35  console.log('microtask9');36};37queueMicrotaskByMutationObserver(microtask9);38const microtask10 = () => {39  console.log('microtask10');40};41queueMicrotaskByMutationObserver(microtask10

Using AI Code Generation

1function functionToRunOnNextMicrotask(){2	console.log("functionToRunOnNextMicrotask called");3}4wptools.queueMicrotaskByMutationObserver(functionToRunOnNextMicrotask);5console.log("log after calling queueMicrotaskByMutationObserver method");6console.log("log after calling queueMicrotaskByMutationObserver method");7console.log("log after calling queueMicrotaskByMutationObserver method");8function functionToRunOnNextMicrotask(){9	console.log("functionToRunOnNextMicrotask called");10}11wptools.queueMicrotaskByMutationObserver(functionToRunOnNextMicrotask);12console.log("log after calling queueMicrotaskByMutationObserver method");13console.log("log after calling queueMicrotaskByMutationObserver method");14console.log("log after calling queueMicrotaskByMutationObserver method");

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.