How to use queueMicrotaskViaMO method in wpt

Best JavaScript code snippet using wpt

queue-microtask.window.js

Source:queue-microtask.window.js

1"use strict";2// This does not work as you expect because mutation observer compound microtasks are confusing.3// Basically you can only use it once per test.4function queueMicrotaskViaMO(cb) {5  const observer = new MutationObserver(cb);6  const node = document.createTextNode("");7  observer.observe(node, { characterData: true });8  node.data = "foo";9}10// Need to use promise_test to get sequential ordering; otherwise the global mutation observer11// compound microtask business screws us over.12promise_test(() => {13  return new Promise(resolve => {14    const happenings = [];15    queueMicrotaskViaMO(() => happenings.push("x"));16    queueMicrotask(() => happenings.push("a"));17    queueMicrotask(() => {18      assert_array_equals(happenings, ["x", "a"]);19      resolve();20    });21  });22}, "It interleaves with MutationObservers as expected");23promise_test(() => {24  return new Promise(resolve => {25    const happenings = [];26    queueMicrotask(() => happenings.push("a"));27    Promise.reject().catch(() => happenings.push("x"));28    queueMicrotaskViaMO(() => happenings.push(1));29    Promise.resolve().then(() => happenings.push("y"));30    queueMicrotask(() => happenings.push("b"));31    queueMicrotask(() => happenings.push("c"));32    queueMicrotask(() => {33      assert_array_equals(happenings, ["a", "x", 1, "y", "b", "c"]);34      resolve();35    });36  });...

aflprep_queue-microtask.window.js

Source:aflprep_queue-microtask.window.js

1"use strict";2function queueMicrotaskViaMO(cb) {3  const observer = new MutationObserver(cb);4  const node = document.createTextNode("");5  observer.observe(node, { characterData: true });6  node.data = "foo";7}8promise_test(() => {9  return new Promise(resolve => {10    const happenings = [];11    queueMicrotaskViaMO(() => happenings.push("x"));12    queueMicrotask(() => happenings.push("a"));13    queueMicrotask(() => {14      assert_array_equals(happenings, ["x", "a"]);15      resolve();16    });17  });18}, "It interleaves with MutationObservers as expected");19promise_test(() => {20  return new Promise(resolve => {21    const happenings = [];22    queueMicrotask(() => happenings.push("a"));23    Promise.reject().catch(() => happenings.push("x"));24    queueMicrotaskViaMO(() => happenings.push(1));25    Promise.resolve().then(() => happenings.push("y"));26    queueMicrotask(() => happenings.push("b"));27    queueMicrotask(() => happenings.push("c"));28    queueMicrotask(() => {29      assert_array_equals(happenings, ["a", "x", 1, "y", "b", "c"]);30      resolve();31    });32  });...

Using AI Code Generation

1import { queueMicrotaskViaMO } from 'wpt-runner'2queueMicrotaskViaMO(() => {3})4import { queueMicrotaskViaPromise } from 'wpt-runner'5queueMicrotaskViaPromise(() => {6})7import { queueMicrotaskViaRAF } from 'wpt-runner'8queueMicrotaskViaRAF(() => {9})10import { queueMicrotaskViaMutationObserver } from 'wpt-runner'11queueMicrotaskViaMutationObserver(() => {12})13import { queueMicrotaskViaMessageChannel } from 'wpt-runner'14queueMicrotaskViaMessageChannel(() => {15})16import { queueMicrotaskViaPostMessage } from 'wpt-runner'17queueMicrotaskViaPostMessage(() => {18})19import { queueMicrotaskViaSetImmediate } from 'wpt-runner'20queueMicrotaskViaSetImmediate(() => {21})22import { queueMicrotaskViaSetTimeout } from 'wpt-runner'23queueMicrotaskViaSetTimeout(() => {24})25import { queueMicrotaskViaNextTick } from 'wpt-runner'26queueMicrotaskViaNextTick(() => {27})28import { queueMicrotaskViaProcessNextTick } from 'wpt-runner'29queueMicrotaskViaProcessNextTick(() => {30})31import { queueMicrotaskViaRAF } from 'wpt-runner'32queueMicrotaskViaRAF(() => {33})

Using AI Code Generation

1queueMicrotaskViaMO(function() {2});3queueMicrotaskViaPromise(function() {4});5queueMicrotaskViaMessageChannel(function() {6});7queueMicrotaskViaMutationObserver(function() {8});9queueMicrotaskViaSetTimeout(function() {10});11queueMicrotaskViaSetImmediate(function() {12});13queueMicrotaskViaPostMessage(function() {14});15queueMicrotaskViaNextTick(function() {16});17queueMicrotaskViaProcessNextTick(function() {18});19queueMicrotaskViaAsync(function() {20});21queueMicrotaskViaZalgo(function() {22});23queueMicrotaskViaZalgo2(function() {24});25queueMicrotaskViaZalgo3(function() {26});

Using AI Code Generation

1import { queueMicrotaskViaMO } from 'wpt-runner';2queueMicrotaskViaMO(() => {3  console.log('queueMicrotaskViaMO');4});5export function queueMicrotaskViaMO(callback) {6  const mo = new MutationObserver(callback);7  mo.observe(document.createTextNode(''), {characterData: true});8  mo.disconnect();9}10export function queueMicrotaskViaPromise(callback) {11  Promise.resolve().then(callback);12}13export function queueMicrotaskViaSetTimeout(callback) {14  setTimeout(callback, 0);15}16export function queueMicrotaskViaMessageChannel(callback) {17  const channel = new MessageChannel();18  channel.port1.onmessage = callback;19  channel.port2.postMessage(undefined);20}21export function queueMicrotaskViaPostMessage(callback) {22  const messageName = 'queueMicrotaskViaPostMessage';23  const eventListener = ({data}) => {24    if (data === messageName) {25      callback();26      window.removeEventListener('message', eventListener);27    }28  };29  window.addEventListener('message', eventListener);30  window.postMessage(messageName, '*');31}32export function queueMicrotaskViaSetImmediate(callback) {33  setImmediate(callback);34}35export function queueMicrotaskViaIframe(callback) {36  const iframe = document.createElement('iframe');37  iframe.src = 'about:blank';38  document.body.appendChild(iframe);39  iframe.contentWindow.postMessage('queueMicrotaskViaIframe', '*');40  window.addEventListener('message', () => {41    document.body.removeChild(iframe);42    callback();43  });44}45export function queueMicrotaskViaRequestAnimationFrame(callback) {46  requestAnimationFrame(() => {47    requestAnimationFrame(callback);48  });49}

Using AI Code Generation

1import {queueMicrotaskViaMO} from 'wpt-runner';2queueMicrotaskViaMO(function () {3});4import {queueMicrotaskViaPromise} from 'wpt-runner';5queueMicrotaskViaPromise(function () {6});7import {queueMicrotaskViaRAF} from 'wpt-runner';8queueMicrotaskViaRAF(function () {9});10import {queueMicrotaskViaMessage} from 'wpt-runner';11queueMicrotaskViaMessage(function () {12});13import {queueMicrotaskViaSetImmediate} from 'wpt-runner';14queueMicrotaskViaSetImmediate(function () {15});16import {queueMicrotaskViaNextTick} from 'wpt-runner';17queueMicrotaskViaNextTick(function () {18});19import {queueMicrotaskViaProcessNextTick} from 'wpt-runner';20queueMicrotaskViaProcessNextTick(function () {21});22import {queueMicrotaskViaMutationObserver} from 'wpt-runner';23queueMicrotaskViaMutationObserver(function () {24});25import {queueMicrotaskViaMutationObserver} from 'wpt-runner';26queueMicrotaskViaMutationObserver(function () {27});28import {queueMicrotaskViaMutationObserver} from 'wpt-runner';29queueMicrotaskViaMutationObserver(function () {30});

Using AI Code Generation

1var queueMicrotaskViaMO = require('wpt-runner').queueMicrotaskViaMO;2queueMicrotaskViaMO(function() {3  console.log('microtask');4});5function queueMicrotaskViaMO(fn) {6  var mo = new MutationObserver(function() {7    mo.disconnect();8    fn();9  });10  mo.observe(document.createTextNode(''), {characterData: true});11  document.createTextNode('').data = 'a';12}13module.exports.queueMicrotaskViaMO = queueMicrotaskViaMO;

Using AI Code Generation

1queueMicrotaskViaMO(() => {2  console.log("Hello World");3});4const { queueMicrotaskViaMO } = require("@web/test-runner-commands");5const assert = require("assert");6queueMicrotaskViaMO(() => {7  assert.equal(1 + 1, 2);8});9const { queueMicrotaskViaMO } = require("@web/test-runner-commands");10const assert = require("assert");11queueMicrotaskViaMO(() => {12  assert.equal(1 + 1, 2);13});

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