---
title: PositionOptions.timeout
slug: Web/API/PositionOptions/timeout
tags:
  - API
translation_of: Web/API/PositionOptions/timeout
---
<div>{{APIRef("Geolocation API")}}</div>

<p><code><strong>PositionOptions.timeout</strong></code> 属性是一个 <code>long</code> 型正数，它代表机器能够等待方法返回位置的最长时间（单位是毫秒）。预设值是 <code><a href="https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Infinity">Infinity</a></code>，这意味着 <code>getCurrentPosition</code> <code>()</code> 此方法在没有可用的位置前不会有任何回复。</p>

<h2 id="语法">语法</h2>

<pre class="syntaxbox"><var>positionOptions</var>.timeout = <var>timeLength</var>
</pre>

<h2 id="规范">规范</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('Geolocation', '#timeout', 'PositionOptions.timeout')}}</td>
   <td>{{Spec2('Geolocation')}}</td>
   <td>初始定义</td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</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>5</td>
   <td>{{CompatGeckoDesktop("1.9.1")}}</td>
   <td>9</td>
   <td>10.60<br>
    {{CompatNo}} 15.0<br>
    16.0</td>
   <td>5</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>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatGeckoMobile("4")}}</td>
   <td>{{CompatUnknown}}</td>
   <td>10.60</td>
   <td>{{CompatUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="相关链接">相关链接</h2>

<ul>
 <li><a href="/en-US/docs/WebAPI/Using_geolocation">Using geolocation</a></li>
 <li>属于{{domxref("PositionOptions")}} 接口。</li>
</ul>