---
title: WeakMap.prototype.delete()
slug: Web/JavaScript/Reference/Global_Objects/WeakMap/delete
tags:
  - ECMAScript 2015
  - JavaScript
  - Method
  - Prototype
  - Reference
  - WeakMap
translation_of: Web/JavaScript/Reference/Global_Objects/WeakMap/delete
---
<div>{{JSRef}}</div>

<p><code><strong>delete()</strong></code> 메소드는 <code>WeakMap</code> 객체의 특정 요소를 제거합니다.</p>

<div>{{EmbedInteractiveExample("pages/js/weakmap-prototype-delete.html")}}</div>



<h2 id="구문">구문</h2>

<pre class="syntaxbox"><em>wm</em>.delete(<em>key</em>);</pre>

<h3 id="매개변수">매개변수</h3>

<dl>
 <dt><code>key</code></dt>
 <dd><code>WeakMap</code> 객체에서 제거할 요소의 키.</dd>
</dl>

<h3 id="반환_값">반환 값</h3>

<p><code>WeakMap</code> 객체의 요소가 성공적으로 제거되면 <code>true</code>, 키를 찾을 수 없거나 키가 객체가 아닌 경우 <code>false</code>.</p>

<h2 id="예제">예제</h2>

<h3 id="delete_메서드_사용하기"><code>delete</code> 메서드 사용하기</h3>

<pre class="brush: js;highlight:[4]">var wm = new WeakMap();
wm.set(window, 'foo');

wm.delete(window); // Returns true. Successfully removed.

wm.has(window);    // Returns false. The window object is no longer in the WeakMap.
</pre>

<h2 id="명세">명세</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('ES2015', '#sec-weakmap.prototype.delete', 'WeakMap.prototype.delete')}}</td>
   <td>{{Spec2('ES2015')}}</td>
   <td>Initial definition.</td>
  </tr>
  <tr>
   <td>{{SpecName('ESDraft', '#sec-weakmap.prototype.delete', 'WeakMap.prototype.delete')}}</td>
   <td>{{Spec2('ESDraft')}}</td>
   <td> </td>
  </tr>
 </tbody>
</table>

<h2 id="브라우저_호환성">브라우저 호환성</h2>



<p>{{Compat("javascript.builtins.WeakMap.delete")}}</p>

<h2 id="같이_보기">같이 보기</h2>

<ul>
 <li>{{jsxref("WeakMap")}}</li>
</ul>