---
title: Window.screenX
slug: Web/API/Window/screenX
translation_of: Web/API/Window/screenX
---
<div>
 {{APIRef}}</div>
<h2 id="Summary" name="Summary">概述</h2>
<p>返回浏览器左边界到操作系统桌面左边界的水平距离。</p>
<h2 id="Syntax" name="Syntax">语法</h2>
<pre class="syntaxbox"><i>lLoc</i> = window.screenX
</pre>
<ul>
 <li><code>lLoc</code> 为浏览器左边到系统桌面左边的像素值</li>
</ul>
<h2 id="Specification" name="Specification">规范</h2>
<p>{{dom0}}</p>
<h2 id="See_also" name="See_also">相关链接</h2>
<ul>
 <li>{{domxref("Window.screenY")}}</li>
</ul>