Intl.Locale.prototype.getNumberingSystems()

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The getNumberingSystems() method of Intl.Locale instances returns a list of one or more unique numbering system identifiers for this locale.

Note: In some versions of some browsers, this method was implemented as an accessor property called numberingSystems. However, because it returns a new array on each access, it is now implemented as a method to prevent the situation of locale.numberingSystems === locale.numberingSystems returning false. Check the browser compatibility table for details.

Syntax

js
getNumberingSystems()

Parameters

None.

Return value

An array of strings representing all numbering systems commonly used for the Locale, sorted in descending preference. If the Locale already has a numberingSystem, then the returned array contains that single value.

For a list of supported numbering system types, see Intl.supportedValuesOf().

Examples

Obtaining supported numbering systems

If the Locale object doesn't have a numberingSystem already, getNumberingSystems() lists all commonly-used numbering systems for the given Locale. For examples of explicitly setting a numberingSystem, see numberingSystem examples.

js
const arEG = new Intl.Locale("ar-EG");
console.log(arEG.getNumberingSystems()); // ["arab"]
js
const ja = new Intl.Locale("ja");
console.log(ja.getNumberingSystems()); // ["latn"]

Specifications

Specification
Intl Locale Info Proposal
# sec-Intl.Locale.prototype.getNumberingSystems

Browser compatibility

desktop mobile server
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Bun
Deno
Node.js
getNumberingSystems
Chrome – Full support
Chrome 99 (Release date: 2022-03-01)
footnote , altname
altname Alternate name: numberingSystems
footnote Implemented as an accessor property.
Chrome – Full support
Chrome 130 (Release date: 2024-10-15)
footnote Full support
Edge – Full support
Edge 99 (Release date: 2022-03-03)
footnote , altname
altname Alternate name: numberingSystems
footnote Implemented as an accessor property.
Edge – Full support
Edge 130 (Release date: 2024-10-17)
footnote Full support
Firefox – No support
Firefox
footnote No support
Opera – Full support
Opera 85 (Release date: 2022-03-23)
footnote , altname
altname Alternate name: numberingSystems
footnote Implemented as an accessor property.
Opera – Full support
Opera 115 (Release date: 2024-11-27)
footnote Full support
Safari – No support
Safari 15.4 – TP (Release date: 2022-03-14)
altname
footnote Removed in TP and later
altname Alternate name: numberingSystems
footnote Implemented as an accessor property.
Safari – Full support
Safari 17 (Release date: 2023-09-18)
footnote Full support
Chrome Android – Full support
Chrome Android 99 (Release date: 2022-03-01)
footnote , altname
altname Alternate name: numberingSystems
footnote Implemented as an accessor property.
Chrome Android – Full support
Chrome Android 130 (Release date: 2024-10-15)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote No support
Opera Android – Full support
Opera Android 68 (Release date: 2022-03-30)
footnote , altname
altname Alternate name: numberingSystems
footnote Implemented as an accessor property.
Opera Android – Full support
Opera Android 86 (Release date: 2024-12-02)
footnote Full support
Safari on iOS – Full support
Safari on iOS 15.4 (Release date: 2022-03-14)
footnote , altname
altname Alternate name: numberingSystems
footnote Implemented as an accessor property.
Safari on iOS – Full support
Safari on iOS 17 (Release date: 2023-09-18)
footnote Full support
Samsung Internet – Full support
Samsung Internet 18 (Release date: 2022-08-08)
footnote , altname
altname Alternate name: numberingSystems
footnote Implemented as an accessor property.
Samsung Internet – Full support
Samsung Internet 28 (Release date: 2025-04-02)
footnote Full support
WebView Android – Full support
WebView Android 99 (Release date: 2022-03-01)
footnote , altname
altname Alternate name: numberingSystems
footnote Implemented as an accessor property.
WebView Android – Full support
WebView Android 130 (Release date: 2024-10-15)
footnote Full support
WebView on iOS – Full support
WebView on iOS 15.4 (Release date: 2022-03-14)
footnote , altname
altname Alternate name: numberingSystems
footnote Implemented as an accessor property.
WebView on iOS – Full support
WebView on iOS 17 (Release date: 2023-09-18)
footnote Full support
Bun – Full support
Bun 1 (Release date: 2023-09-08)
footnote Full support
Deno – Full support
Deno 1.19 (Release date: 2022-02-17)
footnote Full support
Node.js – Full support
Node.js 18 (Release date: 2022-04-19)
footnote , altname
altname Alternate name: numberingSystems
footnote Implemented as an accessor property.
Node.js – Full support
Node.js 24 (Release date: 2025-05-06)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
Uses a non-standard name
Has more compatibility info.

See also