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---
title: Number.NaN
slug: Web/JavaScript/Reference/Global_Objects/Number/NaN
tags:
- JavaScript
- Number
- Property
translation_of: Web/JavaScript/Reference/Global_Objects/Number/NaN
---
<div>{{JSRef}}</div>
<p><strong><code>Number.NaN</code></strong> 속성은 Not-A-Number(숫자가 아님)를 나타냅니다. {{jsxref("NaN")}}과 같습니다.</p>
<p>{{EmbedInteractiveExample("pages/js/number-nan.html")}}<br>
정적 속성이므로 접근하기 위해 {{jsxref("Number")}} 객체를 생성할 필요는 없습니다. (<code>Number.NaN</code> 사용)</p>
<div>{{js_property_attributes(0, 0, 0)}}</div>
<h2 id="명세">명세</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">스펙</th>
<th scope="col">상태</th>
<th scope="col">설명</th>
</tr>
<tr>
<td>{{SpecName('ES1')}}</td>
<td>{{Spec2('ES1')}}</td>
<td>초기 정의. JavaScript 1.1에서 구현됨.</td>
</tr>
<tr>
<td>{{SpecName('ES5.1', '#sec-15.7.3.4', 'Number.NaN')}}</td>
<td>{{Spec2('ES5.1')}}</td>
<td> </td>
</tr>
<tr>
<td>{{SpecName('ES6', '#sec-number.nan', 'Number.NaN')}}</td>
<td>{{Spec2('ES6')}}</td>
<td> </td>
</tr>
<tr>
<td>{{SpecName('ESDraft', '#sec-number.nan', 'Number.NaN')}}</td>
<td>{{Spec2('ESDraft')}}</td>
<td> </td>
</tr>
</tbody>
</table>
<h2 id="브라우저_호환성">브라우저 호환성</h2>
<div>{{Compat("javascript.builtins.Number.NaN")}}</div>
<div id="compat-desktop"> </div>
<h2 id="같이_보기">같이 보기</h2>
<ul>
<li>전역 {{jsxref("NaN")}} 객체.</li>
<li>본 속성이 속한 {{jsxref("Number")}} 객체.</li>
</ul>
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