---
title: Screen.availWidth
slug: Web/API/Screen/availWidth
translation_of: Web/API/Screen/availWidth
---
<div>
 {{ APIRef() }}</div>
<h2 id="Summary" name="Summary">概述</h2>
<p>返回浏览器窗口可占用的水平宽度（单位：像素）。</p>
<h2 id="Syntax" name="Syntax">语法</h2>
<pre class="syntaxbox"><code>window.screen.availWidth</code></pre>
<h2 id="Example" name="Example">示例</h2>
<pre class="brush:js">var screenAvailWidth = window.screen.availWidth;

console.log(screenAvailWidth);</pre>
<h2 id="Specification" name="Specification">规范</h2>
<div>
 {{DOM0()}}</div>