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+---
+title: Array.unobserve()
+slug: Web/JavaScript/Reference/Global_Objects/Array/unobserve
+translation_of: Archive/Web/JavaScript/Array.unobserve
+---
+<div>{{JSRef}} {{non-standard_header}}</div>
+
+<p>Array<strong>.unobserve()方法用来移除</strong>{{jsxref("Array.observe()")}}设置的所有观察者。</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox"><code>Array.unobserve(<var>arr</var>, <var>callback</var>)</code></pre>
+
+<h3 id="参数">参数</h3>
+
+<dl>
+ <dt><code>arr</code></dt>
+ <dd>停止观察的数组。</dd>
+ <dt> </dt>
+ <dt><code>callback回调</code></dt>
+ <dd>需要停止的array <strong>arr</strong>每次改变都会调用的函数引用。</dd>
+</dl>
+
+<h2 id="描述">描述</h2>
+
+<p><code>Array.unobserve()</code> 方法因为要移除观察者，所以应该在{{jsxref("Array.observe()")}}调用后调用。</p>
+
+<p>回调函数应该是一个函数的引用并且不能是匿名函数， 因为这个函数需要用来移除前面的观察者， 如果用匿名函数是没有用的，将不能移除任何观察者。</p>
+
+<h2 id="例子">例子</h2>
+
+<h3 id="停止观察一个数组">停止观察一个数组</h3>
+
+<pre class="brush: js">var arr = [1, 2, 3];
+
+var observer = function(changes) {
+  console.log(changes);
+}
+
+Array.observe(arr, observer);
+
+arr.push(4);
+// [{type: "splice", object: &lt;arr&gt;, index: 3, removed:[], addedCount: 1}]
+
+Array.unobserve(arr, observer);
+
+arr.pop();
+// The callback wasn't called</pre>
+
+<h3 id="使用匿名函数">使用匿名函数</h3>
+
+<pre class="brush: js">var persons = ['Khalid', 'Ahmed', 'Mohammed'];
+
+Array.observe(persons, function (changes) {
+  console.log(changes);
+});
+
+persons.shift();
+// [{type: "splice", object: &lt;arr&gt;, index: 0, removed: [ "Khalid" ], addedCount: 0 }]
+
+Array.unobserve(persons, function (changes) {
+  console.log(changes);
+});
+
+persons.push('Abdullah');
+// [{type: "splice", object: &lt;arr&gt;, index: 2, removed: [], addedCount: 1 }]
+// The callback will always be called
+</pre>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+<div>
+<div>
+
+
+<p>{{Compat("javascript.builtins.Array.unobserve")}}</p>
+</div>
+</div>
+
+<h2 id="相关内容">相关内容</h2>
+
+<ul>
+ <li>{{jsxref("Array.observe()")}} {{non-standard_inline}}</li>
+ <li>{{jsxref("Object.observe()")}} {{non-standard_inline}}</li>
+ <li>{{jsxref("Object.unobserve()")}} {{non-standard_inline}}</li>
+</ul>