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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>