From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001
From: Peter Bengtsson <mail@peterbe.com>
Date: Tue, 8 Dec 2020 14:40:17 -0500
Subject: initial commit

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+---
+title: ParallelArray
+slug: Web/JavaScript/Reference/Global_Objects/ParallelArray
+tags:
+  - JavaScript
+  - ParallelArray
+  - 过时
+translation_of: Archive/Web/ParallelArray
+---
+<p>The goal of <strong><code>ParallelArray</code></strong> was to enable data-parallelism in web applications. The higher-order functions available on <code>ParallelArray</code> attempted to execute in parallel, though they may fall back to sequential execution if necessary. To ensure that your code executes in parallel, it is suggested that the functions should be limited to the <a href="http://smallcultfollowing.com/babysteps/blog/2013/04/30/parallelizable-javascript-subset/">parallelizable subset of JS that Firefox supports</a>.</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">new ParallelArray()
+new ParallelArray([element0, element1, ...])
+new ParallelArray(arrayLength, elementalFunction)</pre>
+
+<h2 id="ParallelArray_instances"><code>ParallelArray</code> instances</h2>
+
+<h3 id="属性">属性</h3>
+
+<dl>
+ <dt>length</dt>
+ <dd>Reflects the number of elements in the <code>ParallelArray</code>.</dd>
+</dl>
+
+<h3 id="方法">方法</h3>
+
+<dl>
+ <dt>map</dt>
+ <dt>reduce</dt>
+ <dt>scan</dt>
+ <dt>scatter</dt>
+ <dt>filter</dt>
+ <dt>flatten</dt>
+ <dt>partition</dt>
+ <dt>get</dt>
+</dl>
+
+<h2 id="示例">示例</h2>
+
+<h3 id="Using_map_in_parallel">Using <code>map</code> in parallel</h3>
+
+<pre class="brush: js">var p = new ParallelArray([0, 1, 2, 3, 4]);
+var m = p.map(function (v) {
+  return v + 1;
+});</pre>
+
+<h2 id="参见">参见</h2>
+
+<ul>
+ <li><a href="http://wiki.ecmascript.org/doku.php?id=strawman:data_parallelism">Ecmascript ParallelArray strawman</a></li>
+</ul>
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