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Intl.getCanonicalLocales()

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

Try it

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

Using getCanonicalLocales

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
ECMAScript Internationalization API Specification # sec-intl.getcanonicallocales

Browser compatibility

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	Deno	Node.js
`getCanonicalLocales`	54	16	48	41	10.1	54	56	41	10.3	6.0	54	1.8	7.0.0