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Intl.Locale.prototype.baseName

The baseName accessor property of Intl.Locale instances returns a substring of this locale's string representation, containing core information about this locale.

Description

An Intl.Locale object represents a parsed local and options for that locale. The baseName property returns basic, core information about the Locale in the form of a substring of the complete data string. Specifically, the property returns the substring containing the language, and the script and region if available.

baseName returns the language ["-" script] ["-" region] *("-" variant) subsequence of the unicode_language_id grammar.

Examples

Basic Example

const myLoc = new Intl.Locale("fr-Latn-CA"); // Sets locale to Canadian French
console.log(myLoc.toString()); // Prints out "fr-Latn-CA-u-ca-gregory"
console.log(myLoc.baseName); // Prints out "fr-Latn-CA"

Example with options in the input string

// Sets language to Japanese, region to Japan,

// calendar to Gregorian, hour cycle to 24 hours
const japan = new Intl.Locale("ja-JP-u-ca-gregory-hc-24");
console.log(japan.toString()); // Prints out "ja-JP-u-ca-gregory-hc-h24"
console.log(japan.baseName); // Prints out "ja-JP"

Example with options that override input string

// Input string indicates language as Dutch and region as Belgium,

// but options object overrides the region and sets it to the Netherlands
const dutch = new Intl.Locale("nl-Latn-BE", { region: "NL" });

console.log(dutch.baseName); // Prints out "nl-Latn-NL"

Specifications

Specification
ECMAScript Internationalization API Specification # sec-Intl.Locale.prototype.baseName

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
`baseName`	74	79	75	62	14	74	79	53	14	11.0	74	1.8	12.0.0