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docs/javascript/Reference/Global_Objects/Array/of.html
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<div></div>
<p><code><strong>Array.of()</strong></code> 方法创建一个具有可变数量参数的新数组实例，而不考虑参数的数量或类型。</p>
<p> <code><strong>Array.of()</strong></code> 和 <code><strong>Array</strong></code> 构造函数之间的区别在于处理整数参数：<code><strong>Array.of(7)</strong></code><strong> </strong>创建一个具有单个元素 <strong>7</strong> 的数组，而 <strong><code>Array(7)</code> </strong>创建一个长度为7的空数组（<strong>注意：</strong>这是指一个有7个空位(empty)的数组，而不是由7个<code>undefined</code>组成的数组）。</p>
<pre class="brush: js">Array.of(7); // [7]
<pre><code class="language-javascript">Array.of(7); // [7]
Array.of(1, 2, 3); // [1, 2, 3]
Array(7); // [ , , , , , , ]
Array(1, 2, 3); // [1, 2, 3]
</pre>
</code></pre>
<h2 id="Syntax" name="Syntax">语法</h2>
<pre class="syntaxbox"><code>Array.of(<var>element0</var>[, <var>element1</var>[, ...[, <var>elementN</var>]]])</code></pre>
<pre><code class="language-javascript"><code>Array.of(<var>element0</var>[, <var>element1</var>[, ...[, <var>elementN</var>]]])</code></code></pre>
<h3 id="Parameters" name="Parameters">参数</h3>
<dl>
<dt>element<em>N</em></dt>
@@ -20,17 +20,17 @@ Array(1, 2, 3); // [1, 2, 3]
<h2 id="描述">描述</h2>
<p>此函数是ECMAScript 2015标准的一部分。详见 <a class="external" href="https://gist.github.com/rwaldron/1074126" rel="noopener"><code>Array.of 和</code> <code>Array.from</code> proposal</a> 和 <a class="external" href="https://gist.github.com/rwaldron/3186576" rel="noopener"><code>Array.of</code> polyfill</a>。</p>
<h2 id="示例">示例</h2>
<pre class="brush: js" style="font-size: 14px;"><span style="line-height: 22px;">Array.of(1); // [1]
<pre><code class="language-js" style="font-size: 14px;"><span style="line-height: 22px;">Array.of(1); // [1]
</span><span style="line-height: 22px;">Array.of(1, 2, 3); // [1, 2, 3]</span>
Array.of(undefined); // [undefined]
</pre>
</code></pre>
<h2 id="Compatibility" name="Compatibility">兼容旧环境</h2>
<p>如果原生不支持的话，在其他代码之前执行以下代码会创建 <code>Array.of()</code> 。</p>
<pre class="brush: js" style="font-size: 14px;">if (!Array.of) {
<pre><code class="language-js" style="font-size: 14px;">if (!Array.of) {
Array.of = function() {
return Array.prototype.slice.call(arguments);
};
}</pre>
}</code></pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>