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+---
+title: Array.prototype.pop()
+slug: Web/JavaScript/Reference/Global_Objects/Array/pop
+tags:
+ - Array
+ - Array.prototype.pop()
+ - ES5
+ - ES6
+ - Prototype
+translation_of: Web/JavaScript/Reference/Global_Objects/Array/pop
+---
+<p>{{JSRef}}</p>
+
+<p><code><strong>pop()</strong></code>方法从数组中删除最后一个元素,并返回该元素的值。此方法更改数组的长度。</p>
+
+<div>{{EmbedInteractiveExample("pages/js/array-pop.html")}}</div>
+
+
+
+<h2 id="Syntax" name="Syntax">语法</h2>
+
+<pre class="syntaxbox"><code><em>arr</em>.pop()</code></pre>
+
+<h3 id="返回值">返回值</h3>
+
+<p>从数组中删除的元素(当数组为空时返回{{jsxref("undefined")}})。</p>
+
+<h2 id="Description" name="Description">描述</h2>
+
+<p><code>pop</code> 方法从一个数组中删除并返回最后一个元素。</p>
+
+<p><code>pop</code> 方法有意具有通用性。该方法和 {{jsxref("Function.call", "call()")}} 或 {{jsxref("Function.apply", "apply()")}} 一起使用时,可应用在类似数组的对象上。<code>pop</code>方法根据 <code>length</code>属性来确定最后一个元素的位置。如果不包含<code>length</code>属性或<code>length</code>属性不能被转成一个数值,会将<code>length</code>置为0,并返回<code>undefined</code>。</p>
+
+<p>如果你在一个空数组上调用 pop(),它返回  {{jsxref("undefined")}}。</p>
+
+<h2 id="Example" name="Example">示例</h2>
+
+<h3 id="Example:_Removing_the_last_element_of_an_array" name="Example:_Removing_the_last_element_of_an_array">例子: 删除掉数组的最后一个元素</h3>
+
+<p>下面的代码首先创建了一个拥有四个元素的数组 myFish,然后删除掉它的最后一个元素。</p>
+
+<pre class="brush:js">let myFish = ["angel", "clown", "mandarin", "surgeon"];
+
+let popped = myFish.pop();
+
+console.log(myFish);
+// ["angel", "clown", "mandarin"]
+
+console.log(popped);
+// surgeon
+</pre>
+
+<h2 id="规范" style="margin-bottom: 20px; line-height: 30px;">规范</h2>
+
+<table>
+ <tbody>
+ <tr>
+ <th scope="col">Specification</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comment</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('ES3')}}</td>
+ <td>{{Spec2('ES3')}}</td>
+ <td>Initial definition. Implemented in JavaScript 1.2.</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('ES5.1', '#sec-15.4.4.6', 'Array.prototype.pop')}}</td>
+ <td>{{Spec2('ES5.1')}}</td>
+ <td> </td>
+ </tr>
+ <tr>
+ <td>{{SpecName('ES6', '#sec-array.prototype.pop', 'Array.prototype.pop')}}</td>
+ <td>{{Spec2('ES6')}}</td>
+ <td> </td>
+ </tr>
+ <tr>
+ <td>{{SpecName('ESDraft', '#sec-array.prototype.pop', 'Array.prototype.pop')}}</td>
+ <td>{{Spec2('ESDraft')}}</td>
+ <td> </td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+<div>
+
+
+<p>{{Compat("javascript.builtins.Array.pop")}}</p>
+</div>
+
+<h2 id="相关链接">相关链接</h2>
+
+<ul>
+ <li>{{jsxref("Array.prototype.push()")}}</li>
+ <li>{{jsxref("Array.prototype.shift()")}}</li>
+ <li>{{jsxref("Array.prototype.unshift()")}}</li>
+ <li>{{jsxref("Array.prototype.concat()")}}</li>
+ <li>{{jsxref("Array.prototype.splice()")}}</li>
+</ul>