From 218934fa2ed1c702a6d3923d2aa2cc6b43c48684 Mon Sep 17 00:00:00 2001
From: Peter Bengtsson <mail@peterbe.com>
Date: Tue, 8 Dec 2020 14:43:23 -0500
Subject: initial commit

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+---
+title: Array.of()
+slug: Web/JavaScript/Reference/Global_Objects/Array/of
+tags:
+  - Array
+  - ECMAScript 2015
+  - JavaScript
+  - Method
+  - polyfill
+translation_of: Web/JavaScript/Reference/Global_Objects/Array/of
+---
+<div>{{JSRef}}</div>
+
+<p><code><strong>Array.of()</strong></code> 方法會由引數（arguments）的數量來建立一個新的 <code>Array</code> 實體，而不管引數的數量或類型為何。</p>
+
+<p><code><strong>Array.of()</strong></code> 與 <code><strong>Array</strong></code> 建構式之間的不同在於如何處理整數引數：<code><strong>Array.of(7)</strong></code> 會建立一個擁有單個元素—<code>7</code>—的陣列，而 <code><strong>Array(7)</strong></code> 會建立一個 <code>length</code> 屬性值為 7 的空陣列（<strong>註：</strong>這意味著這個陣列有 7 個空缺欄位（empty slots），而非 7 個值為 <code>undefined</code> 的欄位）。</p>
+
+<pre class="brush: js">Array.of(7);       // [7]
+Array.of(1, 2, 3); // [1, 2, 3]
+
+Array(7);          // [ , , , , , , ]
+Array(1, 2, 3);    // [1, 2, 3]
+</pre>
+
+<h2 id="語法">語法</h2>
+
+<pre class="syntaxbox">Array.of(<var>element0</var>[, <var>element1</var>[, ...[, <var>elementN</var>]]])</pre>
+
+<h3 id="參數">參數</h3>
+
+<dl>
+ <dt><code>element<em>N</em></code></dt>
+ <dd>要用來成為新建立之陣列的元素。</dd>
+</dl>
+
+<h3 id="回傳值">回傳值</h3>
+
+<p>一個新的 {{jsxref("Array")}} 實體。</p>
+
+<h2 id="描述">描述</h2>
+
+<p>此函式是 ECMAScript 2015 標準的一部分。更多資訊可參考 <a href="https://gist.github.com/rwaldron/1074126"><code>Array.of</code> and <code>Array.from</code> proposal</a> 以及 <a href="https://gist.github.com/rwaldron/3186576"><code>Array.of</code> polyfill</a>。</p>
+
+<h2 id="範例">範例</h2>
+
+<pre class="brush: js">Array.of(1);         // [1]
+Array.of(1, 2, 3);   // [1, 2, 3]
+Array.of(undefined); // [undefined]
+</pre>
+
+<h2 id="Polyfill">Polyfill</h2>
+
+<p>若所有執行環境沒有原生支援，可以在其他程式之前先執行以下程式碼來建立 <code>Array.of()</code>。</p>
+
+<pre class="brush: js">if (!Array.of) {
+  Array.of = function() {
+    return Array.prototype.slice.call(arguments);
+  };
+}
+</pre>
+
+<h2 id="規範">規範</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Specification</th>
+   <th scope="col">Status</th>
+   <th scope="col">Comment</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES2015', '#sec-array.of', 'Array.of')}}</td>
+   <td>{{Spec2('ES2015')}}</td>
+   <td>Initial definition.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ESDraft', '#sec-array.of', 'Array.of')}}</td>
+   <td>{{Spec2('ESDraft')}}</td>
+   <td> </td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="瀏覽器相容性">瀏覽器相容性</h2>
+
+<div>
+
+
+<p>{{Compat("javascript.builtins.Array.of")}}</p>
+</div>
+
+<h2 id="參見">參見</h2>
+
+<ul>
+ <li>{{jsxref("Array")}}</li>
+ <li>{{jsxref("Array.from()")}}</li>
+ <li>{{jsxref("TypedArray.of()")}}</li>
+</ul>
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