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---
title: Map.prototype.set()
slug: Web/JavaScript/Reference/Global_Objects/Map/set
tags:
- ECMAScript 2015
- JavaScript
- Map
- Method
- Prototype
- Reference
translation_of: Web/JavaScript/Reference/Global_Objects/Map/set
---
<div>{{JSRef}}</div>
<p><code><strong>set()</strong></code> 메서드는 Map 객체에서 주어진 키를 가진 요소를 추가하고, 키의 요소가 이미 있다면 대체합니다.</p>
<div>{{EmbedInteractiveExample("pages/js/map-prototype-set.html")}}</div>
<h2 id="구문">구문</h2>
<pre class="syntaxbox"><code><em>myMap</em>.set(<em>key</em>, <em>value</em>);</code></pre>
<h3 id="매개변수">매개변수</h3>
<dl>
<dt><code>key</code></dt>
<dd><code>Map</code>에 추가하거나 변경할 요소의 키.</dd>
<dt><code>value</code></dt>
<dd><code>Map</code>에 추가하거나 변경할 요소의 값.</dd>
</dl>
<h3 id="반환_값">반환 값</h3>
<p>호출한 <code>Map</code> 객체.</p>
<h2 id="예제">예제</h2>
<h3 id="set()_사용하기"><code>set()</code> 사용하기</h3>
<pre class="brush: js">var myMap = new Map();
// Add new elements to the map
myMap.set('bar', 'foo');
myMap.set(1, 'foobar');
// Update an element in the map
myMap.set('bar', 'baz');
</pre>
<h3 id="set()_체이닝"><code>set()</code> 체이닝</h3>
<p><code>set()</code>이 같은 <code>Map</code>을 반환하므로 메서드를 여러 번 연속해서 호출할 수 있습니다.</p>
<pre class="brush: js">// Add new elements to the map with chaining.
myMap.set('bar', 'foo')
.set(1, 'foobar')
.set(2, 'baz');
</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-map.prototype.set', 'Map.prototype.set')}}</td>
<td>{{Spec2('ES2015')}}</td>
<td>Initial definition.</td>
</tr>
<tr>
<td>{{SpecName('ESDraft', '#sec-map.prototype.set', 'Map.prototype.set')}}</td>
<td>{{Spec2('ESDraft')}}</td>
<td> </td>
</tr>
</tbody>
</table>
<h2 id="브라우저_호환성">브라우저 호환성</h2>
<p>{{Compat("javascript.builtins.Map.set")}}</p>
<h2 id="같이_보기">같이 보기</h2>
<ul>
<li>{{jsxref("Map")}}</li>
<li>{{jsxref("Map.prototype.get()")}}</li>
<li>{{jsxref("Map.prototype.has()")}}</li>
</ul>
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