---
title: Referência JavaScript
slug: Web/JavaScript/Reference
tags:
  - JavaScript
  - Referencia
translation_of: Web/JavaScript/Reference
---
<h2 id="About_this_Reference" name="About_this_Reference"><a href="/en-US/docs/JavaScript/Reference/About" title="JavaScript/Reference/About">Sobre essa Referência</a></h2>

<div>{{page("/pt-BR/docs/JavaScript/Reference/About")}}</div>

<h2 id="Objetos_Globais"><a href="/en-US/docs/JavaScript/Reference/Global_Objects" title="JavaScript/Reference/Global_Objects">Objetos Globais</a></h2>

<div>{{page('/pt-BR/docs/JavaScript/Reference/Global_Objects', 'Standard global objects (by category)')}}</div>

<h2 id="Functions" name="Functions"><a href="/en-US/docs/JavaScript/Reference/Functions_and_function_scope" title="JavaScript/Reference/Functions_and_function_scope">Funções e escopo de função</a></h2>


<ul>
 <li><code><a href="/en-US/docs/JavaScript/Reference/Functions_and_function_scope/arguments" title="JavaScript/Reference/Functions_and_function_scope/arguments">argumentos</a></code></li>
 <li><a href="/en-US/docs/JavaScript/Reference/Functions_and_function_scope/Strict_mode" title="JavaScript/Reference/Functions_and_function_scope/Strict_mode">Modo Strict</a></li>
</ul>

<h2 id="Statements" name="Statements"><a href="/en-US/docs/JavaScript/Reference/Statements" title="JavaScript/Reference/Statements">Declarações</a></h2>

<div>{{page('/pt-BR/docs/JavaScript/Reference/Statements')}}</div>

<h2 id="Operators" name="Operators"><a href="/en-US/docs/JavaScript/Reference/Operators" title="JavaScript/Reference/Operators">Operadores e outras palavras-chave</a></h2>

<div>{{page('/pt-BR/docs/JavaScript/Reference/Operators')}}</div>

<h2 id="Comments" name="Comments">Comentários</h2>

<ul>
 <li><a href="/en-US/docs/JavaScript/Reference/Code_comments" title="JavaScript/Reference/Code comments">Comentários de código</a> (<code>//</code> and <code>/* */</code>)</li>
</ul>

<h2 id="E4X" name="E4X"><a href="/en-US/docs/E4X" title="E4X">E4X (extensão)</a>{{deprecated_inline}}</h2>

<p>Declarações Globais:</p>

<ul>
 <li><a href="/en-US/docs/E4X/Processing_XML_with_E4X#Handling_namespaces" title="JavaScript/ Guide/Processing XML with E4X#Handling namespaces">default XML namespace</a></li>
</ul>

<p>Funções Globais:</p>

<ul>
 <li><a href="/en-US/docs/E4X:isXMLName" title="E4X:isXMLName">isXMLName()</a></li>
</ul>

<p>Construtores Globais:</p>

<ul>
 <li><a href="/en-US/docs/E4X:Namespace" title="E4X:Namespace">Namespace()</a></li>
 <li><a href="/en-US/docs/E4X:QName" title="E4X:QName">QName()</a></li>
 <li><a href="/en-US/docs/E4X:XML" title="E4X:XML">XML()</a></li>
 <li><a href="/en-US/docs/E4X:XMLList" title="E4X:XMLList">XMLList()</a></li>
</ul>

<h2 id="Appendix_A_-_Reserved_Words" name="Appendix_A_-_Reserved_Words"><a href="/en-US/docs/JavaScript/Reference/Reserved_Words" title="JavaScript/Reference/Reserved_Words">Apêndice A - Palavras Reservadas</a></h2>

<h2 id="Appendix_B_-_Deprecated_Features" name="Appendix_B_-_Deprecated_Features"><a href="/en-US/docs/JavaScript/Reference/Deprecated_and_obsolete_features" title="JavaScript/Reference/Deprecated_Features">Apêndice B - Funcionalidades Obsoletas</a></h2>