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Intl.Collator.prototype.resolvedOptions()

The Intl.Collator.prototype.resolvedOptions() method returns a new object with properties reflecting the locale and collation options computed during initialization of this Intl.Collator object.

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Syntax

resolvedOptions()

Return value

A new object with properties reflecting the locale and collation options computed during the initialization of the given Intl.Collator object.

Description

The resulting object has the following properties:

locale: The BCP 47 language tag for the locale actually used. If any Unicode extension values were requested in the input BCP 47 language tag that led to this locale, the key-value pairs that were requested and are supported for this locale are included in locale.
usage, sensitivity, ignorePunctuation: The values provided for these properties in the options argument or filled in as defaults.
collation: The value requested using the Unicode extension key "co", if it is supported for locale, or "default".
numeric, caseFirst: The values requested for these properties in the options argument or using the Unicode extension keys "kn" and "kf" or filled in as defaults. If the implementation does not support these properties, they are omitted.

Examples

Using the resolvedOptions method

const de = new Intl.Collator('de', { sensitivity: 'base' })
const usedOptions = de.resolvedOptions();

usedOptions.locale;            // "de"
usedOptions.usage;             // "sort"
usedOptions.sensitivity;       // "base"
usedOptions.ignorePunctuation; // false
usedOptions.collation;         // "default"
usedOptions.numeric;           // false

Specifications

Specification
ECMAScript Internationalization API Specification # sec-intl.collator.prototype.resolvedoptions

Browser compatibility

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	Deno	Node.js
`resolvedOptions`	24	12	29	11	15	10	4.4	25	56	14	10	1.5	1.8	0.12.0 Before version 13.0.0, only the locale data for `en-US` is available by default. See the `Collator()` constructor for more details.