Web/JavaScript/Reference/Global objects/Intl/Locale/baseName

The Intl.Locale.prototype.baseName property returns a substring of the Locale's string representation, containing core information about the 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

let 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
let 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
let dutch = new Intl.Locale("nl-Latn-BE", {region: "NL"});

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

Specifications

Specification
ECMAScript Internationalization API (ECMA-402)

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet	Node.js
`baseName`	Chrome Full support 74	Edge Full support 79	Firefox Full support 75	IE No support No	Opera Full support 62	Safari Full support 14	WebView Android Full support 74	Chrome Android Full support 74	Firefox Android No support No	Opera Android Full support 53	Safari iOS Full support 14	Samsung Internet Android Full support 11.0	nodejs Full support 12.0.0 Notes' Full support 12.0.0 Notes' Notes' Before version 13.0.0, only the locale data for `en-US` is available by default. See the `Locale()` constructor for more details.

Legend

Full support: Full support
No support: No support
See implementation notes.': See implementation notes.