Intl.ListFormat() constructor

The Intl.ListFormat() constructor creates objects that enable language-sensitive list formatting.


new Intl.ListFormat([locales[, options]]) 



Optional. A string with a BCP 47 language tag, or an array of such strings. For the general form and interpretation of the locales argument, see the Intl page.

Optional. An object with some or all of the following properties:
  • localeMatcher
    The locale matching algorithm to use. Possible values are "lookup" and "best fit"; the default is "best fit". For information about this option, see the Intl page.
  • type
    The format of output message. Possible values are "conjunction" that stands for "and"-based lists (default, e.g., A, B, and C), or "disjunction" that stands for "or"-based lists (e.g., A, B, or C). "unit" stands for lists of values with units (e.g., 5 pounds, 12 ounces).
  • style
    The length of the formated message. Possible values are: "long" (default, e.g., A, B, and C); "short" (e.g., A, B, C), or "narrow" (e.g., A B C). When style is short or narrowunit is the only allowed value for the type option.


Using format

The following example shows how to create a List formatter using the English language.

const list = ['Motorcycle', 'Bus', 'Car'];

 console.log(new Intl.ListFormat('en-GB', { style: 'long', type: 'conjunction' }).format(list));
// > Motorcycle, Bus and Car

 console.log(new Intl.ListFormat('en-GB', { style: 'short', type: 'disjunction' }).format(list));
// > Motorcycle, Bus or Car

 console.log(new Intl.ListFormat('en-GB', { style: 'narrow', type: 'unit' }).format(list));
// > Motorcycle Bus Car


The definition of 'ListFormat()' in that specification.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung InternetNode.js
ListFormat() constructor
Chrome Full support 72Edge Full support 79Firefox Full support 78IE No support NoOpera Full support 60Safari No support NoWebView Android Full support 72Chrome Android Full support 72Firefox Android No support NoOpera Android Full support 51Safari iOS No support NoSamsung Internet Android No support Nonodejs Full support 13.0.0
Full support 13.0.0
Partial support 12.0.0
Notes Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the ListFormat instance silently falls back to en-US. To make full ICU (locale) data available for versions prior to 13, see Node.js documentation on the --with-intl option and how to provide the data.


Full support  
Full support
No support  
No support
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
See implementation notes.
See implementation notes.

See also