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---
title: Intl.getCanonicalLocales()
slug: Web/JavaScript/Reference/Global_Objects/Intl/getCanonicalLocales
tags:
- 区域语言代码
- 去重
translation_of: Web/JavaScript/Reference/Global_Objects/Intl/getCanonicalLocales
---
<div>{{JSRef}}</div>
<p><strong><code>Intl.getCanonicalLocales()</code></strong> 方法返回一个数组，数组包含规范的区域语言代码，重复的元素将会被去除，每一个元素都会被验证为格式有效的区域语言代码。</p>
<div>{{EmbedInteractiveExample("pages/js/intl-getcanonicallocales.html")}}</div>
<h2 id="Syntax">Syntax</h2>
<pre class="syntaxbox">Intl.getCanonicalLocales(locales)</pre>
<h3 id="参数">参数</h3>
<dl>
<dt><code>locales</code></dt>
<dd>想要规范化的字符串数组。</dd>
</dl>
<h3 id="Return_value">Return value</h3>
<p>一个包含规范区域语言代码的数组。</p>
<h2 id="例子">例子</h2>
<pre class="brush: js">Intl.getCanonicalLocales('EN-US'); // ["en-US"]
Intl.getCanonicalLocales(['EN-US', 'Fr']); // ["en-US", "fr"]
Intl.getCanonicalLocales('EN_US');
// RangeError:'EN_US' is not a structurally valid language tag
</pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
<tr>
<td>{{SpecName('ES Int Draft', '#sec-intl.getcanonicallocales', 'Intl.getCanonicalLocales')}}</td>
<td>{{Spec2('ES Int Draft')}}</td>
<td>Initial definition</td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容">浏览器兼容</h2>
<div>
<p>{{Compat("javascript.builtins.Intl.getCanonicalLocales")}}</p>
</div>
<h2 id="参见">参见</h2>
<ul>
<li>{{jsxref("NumberFormat.supportedLocalesOf", "Intl.NumberFormat.supportedLocalesOf()")}}</li>
<li>{{jsxref("DateTimeFormat.supportedLocalesOf", "Intl.DateTimeFormat.supportedLocalesOf()")}}</li>
<li>{{jsxref("Collator.supportedLocalesOf", "Intl.Collator.supportedLocalesOf()")}}</li>
</ul>
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