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---
title: PositionOptions.timeout
slug: Web/API/PositionOptions/timeout
translation_of: Web/API/PositionOptions/timeout
---
<div>{{APIRef("Geolocation API")}}</div>
<p>是一個正值，它代表機器能夠等待方法回傳位置的最長時間（單位是毫秒）。預設值是<code><a href="https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Infinity">Infinity</a></code>，代表 <code>getCurrentPosition()</code> 此方法在沒有可用的位置前不會有任何回覆。</p>
<h2 id="語法">語法</h2>
<pre class="syntaxbox"><var>positionOptions</var>.timeout = <var>timeLength</var>
</pre>
<h2 id="規格">規格</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>Initial definition</td>
</tr>
</tbody>
</table>
<h2 id="瀏覽器的相容性">瀏覽器的相容性</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>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="請參考">請參考</h2>
<ul>
<li><a href="/en-US/docs/WebAPI/Using_geolocation">Using geolocation</a></li>
<li>屬於{{domxref("PositionOptions")}} 。</li>
</ul>
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