The Intl.ListFormat()
constructor creates Intl.ListFormat
objects.
The Intl.ListFormat()
constructor creates Intl.ListFormat
objects.
locales
Optional
A string with a BCP 47 language tag or an Intl.Locale
instance, or an array of such locale identifiers. For the general form and interpretation of the locales
argument, see the parameter description on the Intl
main page.
options
Optional
An object containing the following properties, in the order they are retrieved (all of them are optional):
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 Locale identification and negotiation.
type
Indicates the type of grouping. Possible values are:
"conjunction"
(default)For "and"-based grouping of the list items: "A, B, and C"
"disjunction"
For "or"-based grouping of the list items: "A, B, or C"
"unit"
For grouping the list items as a unit (neither "and"-based nor "or"-based): "A, B, C"
style
The grouping style (for example, whether list separators and conjunctions are included). Possible values are:
RangeError
Thrown if locales
or options
contain invalid values.
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: "long" }).format(list)); // Motorcycle, Bus and Car console.log(new Intl.ListFormat("en-US", { style: "long" }).format(list)); // Motorcycle, Bus, and Car console.log( new Intl.ListFormat("en-GB", { style: "short", type: "conjunction" }).format( list, ), ); // Motorcycle, Bus and Car console.log( new Intl.ListFormat("en-US", { style: "short", type: "conjunction" }).format( list, ), ); // Motorcycle, Bus, & Car console.log( new Intl.ListFormat("en-GB", { style: "narrow", type: "conjunction" }).format( list, ), ); // Motorcycle, Bus, Car console.log( new Intl.ListFormat("en-GB", { style: "long", type: "disjunction" }).format( list, ), ); // Motorcycle, Bus or 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: "disjunction" }).format( list, ), ); // Motorcycle, Bus or Car console.log(new Intl.ListFormat("en-US", { style: "narrow" }).format(list)); // Motorcycle, Bus, Car console.log( new Intl.ListFormat("en-GB", { style: "narrow", type: "unit" }).format(list), ); // Motorcycle Bus Car console.log( new Intl.ListFormat("en-US", { style: "long" }).format([ "30 degrees", "15 minutes", "50 seconds", ]), ); // 30 degrees, 15 minutes, and 50 seconds console.log( new Intl.ListFormat("en-US", { style: "narrow" }).format([ "30 degrees", "15 minutes", "50 seconds", ]), ); // 30 degrees, 15 minutes, 50 seconds console.log( new Intl.ListFormat("en-US", { style: "narrow", type: "unit" }).format([ "30°", "15′", "50″", ]), ); // 30° 15′ 50″
Desktop | Mobile | Server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | Deno | Node.js | ||
ListFormat |
72 | 79 | 78 | 60 | 14.1Only available on macOS Big Sur (11) and above. |
72 | 79 | 51 | 14.5 | 11.0 | 72 | 1.8 | 13.0.012.0.0Before version 13.0.0, only the locale data foren-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 before version 13, see Node.js documentation on the --with-intl option and how to provide the data. |
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat