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
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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