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---
title: IntersectionObserver.unobserve()
slug: Web/API/IntersectionObserver/unobserve
tags:
- API
- Intersection
- unobserve
translation_of: Web/API/IntersectionObserver/unobserve
---
<div><code>unobserve()方法命令</code>IntersectionObserver停止对一个元素的观察。</div>
<h2 id="语法">语法</h2>
<pre class="syntaxbox">IntersectionObserver.unobserve(<em>target</em>);</pre>
<h3 id="参数">参数</h3>
<dl>
<dt><code>target</code></dt>
<dd>要取消观察的目标，如果没有提供，方法不做任何事情，也不会抛出异常。</dd>
</dl>
<h3 id="返回值">返回值</h3>
<p><code>undefined</code>.</p>
<dl>
</dl>
<h2 id="例子">例子</h2>
<p>下面代码段展示了一个观察器被创建，一个元素被观察，以及取消观察的过程。</p>
<pre class="brush: js">var observer = new IntersectionObserver(callback);
observer.observe(document.getElementById("elementToObserve"));
/* ... */
observer.unobserve(document.getElementById("elementToObserve"));</pre>
<h2 id="说明">说明</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('IntersectionObserver','#dom-intersectionobserver-unobserve','IntersectionObserver.unobserve()')}}</td>
<td>{{Spec2('IntersectionObserver')}}</td>
<td>Initial definition.</td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<p>{{Compat("api.IntersectionObserver.unobserve")}}</p>
<h2 id="另请参阅">另请参阅</h2>
<ul>
<li><a href="/en-US/docs/Web/API/Intersection_Observer_API">Intersection Observer API</a></li>
<li>{{domxref("IntersectionObserver.observe()")}}</li>
</ul>
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