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Intl.getCanonicalLocales

The Intl.getCanonicalLocales() method returns an array containing the canonical locale names. Duplicates will be omitted and elements will be validated as structurally valid language tags.

Syntax

Intl.getCanonicalLocales(locales)

Parameters

locales: A list of String values for which to get the canonical locale names.

Return value

An array containing the canonical locale names.

Examples

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

Specifications

Specification	Status	Comment
ECMAScript Internationalization API 4.0 (ECMA-402) The definition of 'Intl.getCanonicalLocales' in that specification.	Draft	Initial definition

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	54	16	48	No	No	11

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	No	No	No	56	No	11	No

	Server
	Node.js
Basic support	No