Intl.NumberFormat

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its been available across browsers since 2017 ..

Learn more
See full compatibility

Intl.NumberFormat .

const number = 123456.789;

console.log(
  new Intl.NumberFormat("de-DE", { style: "currency", currency: "EUR" }).format(
    number,
  ),
);
// Expected output: "123.456,79 "

// The Japanese yen doesn't use a minor unit
console.log(
  new Intl.NumberFormat("ja-JP", { style: "currency", currency: "JPY" }).format(
    number,
  ),
);
// Expected output: "123,457"

// Limit to three significant digits
console.log(
  new Intl.NumberFormat("en-IN", { maximumSignificantDigits: 3 }).format(
    number,
  ),
);
// Expected output: "1,23,000"

Constructor

Intl.NumberFormat(): NumberFormat.

Intl.NumberFormat.supportedLocalesOf(): , , .

Intl.NumberFormat.prototype Intl.NumberFormat.

Intl.NumberFormat.prototype.constructor: -, . Intl.NumberFormat Intl.NumberFormat.
Intl.NumberFormat.prototype[@@toStringTag]: @@toStringTag "Intl.NumberFormat". Object.prototype.toString().

Intl.NumberFormat.prototype.format(): -, Intl.NumberFormat.
Intl.NumberFormat.prototype.formatRange(): -, Intl.NumberFormat, .
Intl.NumberFormat.prototype.formatRangeToParts(): , , .
Intl.NumberFormat.prototype.formatToParts(): , , .
Intl.NumberFormat.prototype.resolvedOptions(): , , .

`NumberFormat`

, .

const number = 3500;

console.log(new Intl.NumberFormat().format(number));
// '3,500'   US English

`locales`

. , , , (, , ) locales:

const number = 123456.789;

//           ,      - 
console.log(new Intl.NumberFormat("de-DE").format(number));
// 123.456,789

//           ,      - 
console.log(new Intl.NumberFormat("ru-RU").format(number));
// 123 456,789

//        
console.log(new Intl.NumberFormat("ar-EG").format(number));
// 

//      //
console.log(new Intl.NumberFormat("en-IN").format(number));
// 1,23,456.789

//   nu   , ,  
console.log(new Intl.NumberFormat("zh-Hans-CN-u-nu-hanidec").format(number));
// ,.

//      , 
// ,    ,    
console.log(new Intl.NumberFormat(["ban", "id"]).format(number));
// 123.456,789

`options`

options:

const number = 123456.789;

//   
console.log(
  new Intl.NumberFormat("de-DE", { style: "currency", currency: "EUR" }).format(
    number,
  ),
);
// 123.456,79 

console.log(
  new Intl.NumberFormat("ru-RU", { style: "currency", currency: "RUB" }).format(
    number,
  ),
);
// 123 456,79 .

//      
console.log(
  new Intl.NumberFormat("ja-JP", { style: "currency", currency: "JPY" }).format(
    number,
  ),
);
// 123,457

//     
console.log(
  new Intl.NumberFormat("en-IN", { maximumSignificantDigits: 3 }).format(
    number,
  ),
);
// 1,23,000

//    
console.log(
  new Intl.NumberFormat("pt-PT", {
    style: "unit",
    unit: "kilometer-per-hour",
  }).format(50),
);
// 50 km/h

console.log(
  (16).toLocaleString("en-GB", {
    style: "unit",
    unit: "liter",
    unitDisplay: "long",
  }),
);
// 16 litres

Intl.NumberFormat() constructor.