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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 class="hidden">The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</p>
+
+<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>