Intl.getCanonicalLocales()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2017.

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

js
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

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

Specifications

Specification
ECMAScript Internationalization API Specification
# sec-intl.getcanonicallocales

Browser compatibility

BCD tables only load in the browser

See also