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----
-title: Map.prototype.delete()
-slug: Web/JavaScript/Reference/Global_Objects/Map/delete
-translation_of: Web/JavaScript/Reference/Global_Objects/Map/delete
-tags:
-  - ECMAScript 2015
-  - JavaScript
-  - Map
-  - Method
-  - Prototype
-  - Reference
-browser-compat: javascript.builtins.Map.delete
----
-<div>{{JSRef}}</div>
-
-<p><strong> </strong><code><strong><strong>delete()</strong></strong></code><strong> </strong>方法用于移除 <code>Map</code> 对象中指定的元素。</p>
-
-<div>{{EmbedInteractiveExample("pages/js/map-prototype-delete.html")}}</div>
-
-
-
-<h2 id="语法">语法</h2>
-
-<pre class="brush: js">myMap.delete(key);</pre>
-
-<h3 id="参数">参数</h3>
-
-<dl>
- <dt>key</dt>
- <dd>必须。从 <code>Map</code> 对象中移除的元素的键。</dd>
-</dl>
-
-<h3 id="返回值">返回值</h3>
-
-<dl>
- <dt>Boolean</dt>
- <dd>如果 <code>Map</code> 对象中存在该元素，则移除它并返回<em> <code>true</code></em>；否则如果该元素不存在则返回 <code><em>false</em></code>。</dd>
-</dl>
-
-<h2 id="示例">示例</h2>
-
-<h3 id="使用_delete_方法">使用 <code>delete</code> 方法</h3>
-
-<pre class="brush: js">var myMap = new Map();
-myMap.set("bar", "foo");
-
-myMap.delete("bar"); // 返回 true。成功地移除元素
-myMap.has("bar");    // 返回 false。"bar" 元素将不再存在于 Map 实例中
-</pre>
-
-<h2 id="规范">规范</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('ES6', '#sec-map.prototype.delete', 'Map.prototype.delete')}}</td>
-   <td>{{Spec2('ES6')}}</td>
-   <td>Initial definition.</td>
-  </tr>
-  <tr>
-   <td>{{SpecName('ESDraft', '#sec-map.prototype.delete', 'Map.prototype.delete')}}</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>
-
-<p>{{Compat("javascript.builtins.Map.delete")}}</p>
-
-<h2 id="相关链接">相关链接</h2>
-
-<ul>
- <li>{{jsxref("Map")}}</li>
-</ul>