---
title: ArrayBuffer.prototype
slug: conflicting/Web/JavaScript/Reference/Global_Objects/ArrayBuffer
translation_of: Web/JavaScript/Reference/Global_Objects/ArrayBuffer
translation_of_original: Web/JavaScript/Reference/Global_Objects/ArrayBuffer/prototype
original_slug: Web/JavaScript/Reference/Global_Objects/ArrayBuffer/prototype
---
<div>{{JSRef}}</div>

<p>The <strong><code>ArrayBuffer.prototype</code></strong> property represents the prototype for the {{jsxref("ArrayBuffer")}} object.</p>

<div>{{js_property_attributes(0,0,0)}}</div>

<h2 id="描述">描述</h2>

<p><code>ArrayBuffer</code> instances inherit from <code>ArrayBuffer.prototype</code>. As with all constructors, you can change the constructor's prototype object to make changes to all <code>ArrayBuffer</code> instances.</p>

<h2 id="屬性">屬性</h2>

<dl>
 <dt>ArrayBuffer.prototype.constructor</dt>
 <dd>Specifies the function that creates an object's prototype. The initial value is the standard built-in <code>ArrayBuffer</code> constructor.</dd>
 <dt>{{jsxref("ArrayBuffer.prototype.byteLength")}} {{readonlyInline}}</dt>
 <dd>陣列大小，以位元組（byte）計算。此屬性在陣列建立之後就不可能改變了。<strong>唯讀</strong>。</dd>
</dl>

<h2 id="方法">方法</h2>

<dl>
 <dt>{{jsxref("ArrayBuffer.prototype.slice()")}}</dt>
 <dd>Returns a new <code>ArrayBuffer</code> whose contents are a copy of this <code>ArrayBuffer</code>'s bytes from <code>begin</code>, inclusive, up to <code>end</code>, exclusive. If either <code>begin</code> or <code>end</code> is negative, it refers to an index from the end of the array, as opposed to from the beginning.</dd>
</dl>

<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('ES6', '#sec-arraybuffer.prototype', 'ArrayBuffer.prototype')}}</td>
   <td>{{Spec2('ES6')}}</td>
   <td>Initial definition.</td>
  </tr>
  <tr>
   <td>{{SpecName('ESDraft', '#sec-arraybuffer.prototype', 'ArrayBuffer.prototype')}}</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>

<p>{{CompatibilityTable}}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>7.0</td>
   <td>{{ CompatGeckoDesktop("2")}}</td>
   <td>10</td>
   <td>11.6</td>
   <td>5.1</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Chrome for Android</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>4.0</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoMobile("2")}}</td>
   <td>10</td>
   <td>11.6</td>
   <td>4.2</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="參見">參見</h2>

<ul>
 <li>{{jsxref("ArrayBuffer")}}</li>
</ul>