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---
title: 빼기 할당 (-=)
slug: Web/JavaScript/Reference/Operators/Subtraction_assignment
tags:
- Assignment operator
- JavaScript
- Language feature
- Operator
- Reference
browser-compat: javascript.operators.subtraction_assignment
translation_of: Web/JavaScript/Reference/Operators/Subtraction_assignment
---
<div>{{jsSidebar("Operators")}}</div>
<p>빼기 할당 연산자(<code>-=</code>)는 오른쪽 피연산자의 값을 변수에서 뺀 결과를 다시 변수에 할당합니다.</p>
<div>{{EmbedInteractiveExample("pages/js/expressions-subtraction-assignment.html")}}</div>
<h2 id="syntax">구문</h2>
<pre class="brush: js">x -= y // x = x - y</pre>
<h2 id="examples">예제</h2>
<h3 id="using_subtraction_assignment">빼기 할당 사용하기</h3>
<pre class="brush: js">
// bar = 5
// 위와 같은 변수를 가정할 때
bar -= 2 // 3
bar -= 'foo' // NaN
</pre>
<h2 id="specifications">명세</h2>
{{Specifications}}
<h2 id="browser_compatibility">브라우저 호환성</h2>
<p>{{Compat}}</p>
<h2 id="see_also">같이 보기</h2>
<ul>
<li>
<a href="/ko/docs/Web/JavaScript/Guide/Expressions_and_Operators#assignment">JavaScript 안내서의 할당 연산자</a>
</li>
<li><a href="/ko/docs/Web/JavaScript/Reference/Operators/Subtraction">빼기 연산자</a></li>
</ul>
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