The resolvedOptions() method of Intl.RelativeTimeFormat instances returns a new object with properties reflecting the options computed during initialization of this RelativeTimeFormat object.

Try it

const rtf1 = new Intl.RelativeTimeFormat("en", { style: "narrow" });
const options1 = rtf1.resolvedOptions();

const rtf2 = new Intl.RelativeTimeFormat("es", { numeric: "auto" });
const options2 = rtf2.resolvedOptions();

console.log(`${options1.locale}, ${options1.style}, ${options1.numeric}`);
// Expected output: "en, narrow, always"

console.log(`${options2.locale}, ${options2.style}, ${options2.numeric}`);
// Expected output: "es, long, auto"

Syntax

resolvedOptions()

Parameters

None.

Return value

A new object with properties reflecting the options computed during the initialization of this RelativeTimeFormat object. The object has the following properties, in the order they are listed:

locale

The BCP 47 language tag for the locale actually used, determined by the locale negotiation process. Only the nu Unicode extension key, if requested, may be included in the output.

style

The value provided for this property in the options argument, with default filled in as needed. It is either "long", "short", or "narrow". The default is "long".

numeric

The value provided for this property in the options argument, with default filled in as needed. It is either "always" or "auto". The default is "always".

numberingSystem

The value provided for this property in the options argument, or using the Unicode extension key "nu", with default filled in as needed. It is a supported numbering system for this locale. The default is locale dependent.

Examples

Using the resolvedOptions() method

const de = new Intl.RelativeTimeFormat("de-DE");
const usedOptions = de.resolvedOptions();

usedOptions.locale; // "de-DE"
usedOptions.style; // "long"
usedOptions.numeric; // "always"
usedOptions.numberingSystem; // "latn"

Specifications

Browser compatibility

See also

• Intl.RelativeTimeFormat