Pierre-Marie Dartus pmdartus

Async map

Implement a function asyncMap.

This function produces an array of values by mapping each value in arr through the iteratee function in parallel. The iteratee function accepts a first argument an item from arr and a Node.js style callback (accepting an error as first argument or null and the mapped item as second argument). If the iteratee produces a error the main callback is invoked with the error as first argument, otherwise the main callback is invoked with null as first argument and the array of mapped items as second argument.

function asyncMap(arr, fn, cb) {
    // TODO

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<title>WPT async processing</title>
	</head>
	<body>
	<script>
	/* Simulate synchronous processing */
	function sleep(duration) {
	const endTime = performance.now() + duration;

	import { LightningElement } from 'lwc';
	import { I18nContextSymbol } from 'i18n/context';

	// https://vuejs.org/guide/components/provide-inject.html#working-with-symbol-keys
	export default class Foo extends LightningElement {
	static context = {
	[I18nContextSymbol]: { from: '18n' }
	};

	connectedCallback() {

	vpython .\third_party\blink\tools\blink_tool.py rebaseline-cl --no-trigger-jobs --dry-run --fill-missing
	2021-02-02 09:16:35,000 - Finished try jobs:
	2021-02-02 09:16:35,000 - fuchsia_x64
	2021-02-02 09:16:35,000 - linux-rel
	2021-02-02 09:16:35,000 - mac-rel
	2021-02-02 09:16:35,000 - win10_chromium_x64_rel_ng
	2021-02-02 09:16:36,701 - There are some builders with no results:
	2021-02-02 09:16:36,701 - linux-blink-rel
	2021-02-02 09:16:36,701 - linux-wpt-identity-fyi-rel
	2021-02-02 09:16:36,703 - linux-wpt-input-fyi-rel

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Document</title>
	</head>
	<body>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.6/require.js" integrity="sha512-vRqhAr2wsn+/cSsyz80psBbCcqzz2GTuhGk3bq3dAyytz4J/8XwFqMjiAGFBj+WM95lHBJ9cDf87T3P8yMrY7A==" crossorigin="anonymous"></script>

	'use strict';

	/* proxy-compat-disable */

	/*
	* Copyright (c) 2018, salesforce.com, inc.
	* All rights reserved.
	* SPDX-License-Identifier: MIT
	* For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT
	*/

	if (!String.prototype.endsWith) {
	Object.defineProperty(String.prototype, 'endsWith', {
	value: function (searchString, position) {
	var subjectString = this.toString();
	if (position === undefined \|\| position > subjectString.length) {
	position = subjectString.length;
	}
	position -= searchString.length;
	var lastIndex = subjectString.indexOf(searchString, position);
	return lastIndex !== -1 && lastIndex === position;

	.unit-content .codeblock {
	word-wrap: break-word;
	}

	.unit-content blockquote {
	border-color: #e2e2e2;
	}

	.unit-content blockquote p {
	font-weight: normal;

	// Run via `yarn rollup -c rollup.config.js` at the root of the lwc repo

	import path from 'path';
	import replace from '@rollup/plugin-replace';
	import { terser } from 'rollup-plugin-terser';

	const input = path.resolve(__dirname, 'packages/lwc/dist/engine/esm/es2017/engine.js');
	const replaceConfig = {
	'process.env.NODE_ENV': JSON.stringify('production'),
	};