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---
title: Number.NaN
slug: Web/JavaScript/Reference/Global_Objects/Number/NaN
translation_of: Web/JavaScript/Reference/Global_Objects/Number/NaN
---
<div>{{JSRef}}</div>
<p>A propriedade <strong><code>Number.NaN</code></strong> representa Not-A-Number (Não-Número). Equivalente a {{jsxref("NaN")}}.</p>
<p>Você não precisa criar um objeto {{jsxref("Number")}} para acessar esta propriedade estática (use <code>Number.NaN</code>).</p>
<div>{{js_property_attributes(0, 0, 0)}}</div>
<h2 id="Especificações">Especificações</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Especificação</th>
<th scope="col">Status</th>
<th scope="col">Detalhes</th>
</tr>
<tr>
<td>{{SpecName('ES1')}}</td>
<td>{{Spec2('ES1')}}</td>
<td>Definição Inicial. Implementado no JavaScript 1.1.</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="Browser_compatibility">Compatibilidade com navegadores</h2>
<div>{{CompatibilityTable}}</div>
<div id="compat-desktop">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Chrome</th>
<th>Firefox (Gecko)</th>
<th>Internet Explorer</th>
<th>Opera</th>
<th>Safari</th>
</tr>
<tr>
<td>Suporte Básico</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
</tr>
</tbody>
</table>
</div>
<div id="compat-mobile">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Android</th>
<th>Chrome for Android</th>
<th>Firefox Mobile (Gecko)</th>
<th>IE Mobile</th>
<th>Opera Mobile</th>
<th>Safari Mobile</th>
</tr>
<tr>
<td>Suporte Básico</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
</tr>
</tbody>
</table>
</div>
<h2 id="sect1"> </h2>
<h2 id="Veja_também">Veja também</h2>
<ul>
<li>O objeto global {{jsxref("NaN")}}.</li>
<li>O objeto {{jsxref("Number")}} ao qual ele pertence.</li>
</ul>
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