Intl.Locale.prototype.toString()

The toString() method of {{jsxref("Intl.Locale")}} instances returns this Locale's full locale identifier string.

{{InteractiveExample("JavaScript Demo: Intl.Locale.prototype.toString()", "taller")}}

```js interactive-example const french = new Intl.Locale("fr-Latn-FR", { calendar: "gregory", hourCycle: "h12", }); const korean = new Intl.Locale("ko-Kore-KR", { numeric: true, caseFirst: "upper", });

console.log(french.toString()); // Expected output: "fr-Latn-FR-u-ca-gregory-hc-h12"

console.log(korean.toString()); // Expected output: "ko-Kore-KR-u-kf-upper-kn"

## Syntax

```js-nolint
toString()

Parameters#

None.

Return value#

The locale's Unicode locale identifier string.

Description#

The Locale object is a JavaScript representation of a concept Unicode locale identifier. Information about a particular locale (language, script, calendar type, etc.) can be encoded in a locale identifier string. To make it easier to work with these locale identifiers, the Locale object was introduced to JavaScript. Calling the toString method on a Locale object will return the identifier string for that particular Locale. The toString method allows Locale instances to be provided as an argument to existing Intl constructors, serialized in JSON, or any other context where an exact string representation is useful.

Examples#

Using toString#

const myLocale = new Intl.Locale("fr-Latn-FR", {
  hourCycle: "h12",
  calendar: "gregory",
});
console.log(myLocale.baseName); // Prints "fr-Latn-FR"
console.log(myLocale.toString()); // Prints "fr-Latn-FR-u-ca-gregory-hc-h12"

Specifications#

{{Specifications}}

Browser compatibility#

{{Compat}}

See also#

• {{jsxref("Intl.Locale")}}
• {{jsxref("Intl/Locale/baseName", "baseName")}}