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

The Intl.Locale.prototype.numberingSystem property is an accessor property that returns the numeral system used by the locale.

Description

A numeral system is a system for expressing numbers. The numberingSystem property helps to represent the different numeral systems used by various countries, regions, and cultures around the world. As with most internationalization schemas, the numeral systems that can be represented in a Locale object by numberingSystem are standardized by Unicode. A table of the standard Unicode numeral systems can be seen below.

Value	Description
adlm	Adlam digits
ahom	Ahom digits
arab	Arabic-Indic digits
arabext	Extended Arabic-Indic digits
armn	Armenian upper case numerals — algorithmic
armnlow	Armenian lower case numerals — algorithmic
bali	Balinese digits
beng	Bengali digits
bhks	Bhaiksuki digits
brah	Brahmi digits
cakm	Chakma digits
cham	Cham digits
cyrl	Cyrillic numerals — algorithmic
deva	Devanagari digits
ethi	Ethiopic numerals — algorithmic
finance	Financial numerals — may be algorithmic
fullwide	Full width digits
geor	Georgian numerals — algorithmic
gong	Gunjala Gondi digits
gonm	Masaram Gondi digits
grek	Greek upper case numerals — algorithmic
greklow	Greek lower case numerals — algorithmic
gujr	Gujarati digits
guru	Gurmukhi digits
hanidays	Han-character day-of-month numbering for lunar/other traditional calendars
hanidec	Positional decimal system using Chinese number ideographs as digits
hans	Simplified Chinese numerals — algorithmic
hansfin	Simplified Chinese financial numerals — algorithmic
hant	Traditional Chinese numerals — algorithmic
hantfin	Traditional Chinese financial numerals — algorithmic
hebr	Hebrew numerals — algorithmic
hmng	Pahawh Hmong digits
hmnp	Nyiakeng Puachue Hmong digits
java	Javanese digits
jpan	Japanese numerals — algorithmic
jpanfin	Japanese financial numerals — algorithmic
jpanyear	Japanese first-year Gannen numbering for Japanese calendar
kali	Kayah Li digits
khmr	Khmer digits
knda	Kannada digits
lana	Tai Tham Hora (secular) digits
lanatham	Tai Tham Tham (ecclesiastical) digits
laoo	Lao digits
latn	Latin digits
lepc	Lepcha digits
limb	Limbu digits
mathbold	Mathematical bold digits
mathdbl	Mathematical double-struck digits
mathmono	Mathematical monospace digits
mathsanb	Mathematical sans-serif bold digits
mathsans	Mathematical sans-serif digits
mlym	Malayalam digits
modi	Modi digits
mong	Mongolian digits
mroo	Mro digits
mtei	Meetei Mayek digits
mymr	Myanmar digits
mymrshan	Myanmar Shan digits
mymrtlng	Myanmar Tai Laing digits
native	Native digits
newa	Newa digits
nkoo	N'Ko digits
olck	Ol Chiki digits
orya	Oriya digits
osma	Osmanya digits
rohg	Hanifi Rohingya digits
roman	Roman upper case numerals — algorithmic
romanlow	Roman lowercase numerals — algorithmic
saur	Saurashtra digits
shrd	Sharada digits
sind	Khudawadi digits
sinh	Sinhala Lith digits
sora	Sora_Sompeng digits
sund	Sundanese digits
takr	Takri digits
talu	New Tai Lue digits
taml	Tamil numerals — algorithmic
tamldec	Modern Tamil decimal digits
telu	Telugu digits
thai	Thai digits
tirh	Tirhuta digits
tibt	Tibetan digits
traditio	Traditional numerals — may be algorithmic
vaii	Vai digits
wara	Warang Citi digits
wcho	Wancho digits

Examples

Setting the numberingSystem value via the locale string

In the Unicode locale string spec, the values that numberingSystem represents correspond to the key nu. nu is considered a locale string "extension subtag". These subtags add additional data about the locale, and are added to locale identifiers by first adding the -u key. To set the numberingSystem value via the string argument to the Locale constructor, first add the -u extension key. Next, add the -nu extension key to indicate that you are adding a value for numberingSystem. Finally, add the numberingSystem value to the string.

let numberingSystemViaStr = new Intl.Locale("fr-Latn-FR-u-nu-mong");
console.log(numberingSystemStr.numberingSystem); // Prints "mong"

Setting the numberingSystem value via the configuration object argument

The Intl.Locale constructor has an optional configuration object argument, which can be used to pass extension types. Set the numberingSystem property of the configuration object to your desired numberingSystem value and pass it into the constructor.

let numberingSystemViaObj= new Intl.Locale("en-Latn-US", {numberingSystem: "latn"});
console.log(us12hour.numberingSystem); // Prints "latn"

Specifications

Specification
ECMAScript Internationalization API (ECMA-402)

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

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
numberingSystem	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.

See also

• Intl.Locale
• Details on the standard Unicode numeral systems

Intl.Locale.prototype.numberingSystem by Mozilla Contributors is licensed under CC-BY-SA 2.5.