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+---
+title: Set.prototype.delete()
+slug: Web/JavaScript/Reference/Global_Objects/Set/delete
+tags:
+  - ECMAScript 2015
+  - JavaScript
+  - 原型
+  - 參考
+  - 方法
+  - 集合
+translation_of: Web/JavaScript/Reference/Global_Objects/Set/delete
+---
+<div>{{JSRef}}</div>
+
+<p><code><strong>delete()</strong></code> 方法會一個 <code>Set</code> 物件中移除指定元素。</p>
+
+<div>{{EmbedInteractiveExample("pages/js/set-prototype-delete.html")}}</div>
+
+
+
+<h2 id="語法">語法</h2>
+
+<pre class="syntaxbox"><em>mySet</em>.delete(<em>value</em>);</pre>
+
+<h3 id="參數'">參數'</h3>
+
+<dl>
+ <dt><code>value</code></dt>
+ <dd>要從 <code>Set</code> 物件中移除的值。</dd>
+</dl>
+
+<h3 id="回傳值">回傳值</h3>
+
+<p><code>true</code> 如果成功從 <code>Set</code> 物件中移除；反之 <code>false</code>。</p>
+
+<h2 id="範例">範例</h2>
+
+<h3 id="使用_delete_方法">使用 <code>delete</code> 方法</h3>
+
+<pre class="brush: js">var mySet = new Set();
+mySet.add('foo');
+
+mySet.delete('bar'); // Returns false. No "bar" element found to be deleted.
+mySet.delete('foo'); // Returns true.  Successfully removed.
+
+mySet.has('foo');    // Returns false. The "foo" element is no longer present.
+</pre>
+
+<p>下方展示了如何從一個 Set 中移除物件。</p>
+
+<pre class="brush: js">var setObj = new Set(); // Create a New Set.
+
+setObj.add({x: 10, y: 20}); // Add object in the set.
+
+setObj.add({x: 20, y: 30}); // Add object in the set.
+
+// Delete any point with `x &gt; 10`.
+setObj.forEach(function(point){
+  if(point.x &gt; 10){
+    setObj.delete(point)
+  }
+})
+</pre>
+
+<h2 id="規範">規範</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">規範</th>
+   <th scope="col">狀態</th>
+   <th scope="col">註</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES2015', '#sec-set.prototype.delete', 'Set.prototype.delete')}}</td>
+   <td>{{Spec2('ES2015')}}</td>
+   <td>Initial definition.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ESDraft', '#sec-set.prototype.delete', 'Set.prototype.delete')}}</td>
+   <td>{{Spec2('ESDraft')}}</td>
+   <td> </td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="瀏覽器相容性">瀏覽器相容性</h2>
+
+
+
+<p>{{Compat("javascript.builtins.Set.delete")}}</p>
+
+<h2 id="另見">另見</h2>
+
+<ul>
+ <li>{{jsxref("Set")}}</li>
+ <li>{{jsxref("Set.prototype.clear()")}}</li>
+</ul>