Intl.DisplayNames.prototype.resolvedOptions() - JavaScript 编辑

The Intl.DisplayNames.prototype.resolvedOptions() method returns a new object with properties reflecting the locale and style formatting options computed during the construction of the current DisplayNames object.

Syntax

displayNames.resolvedOptions()

Return value

An object with properties reflecting the locale and formatting options computed during the construction of the given DisplayNames object.

Description

The object returned by resolvedOptions() 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.

style

The value provided for this property in the options argument of the constructor or the default value ("long"). Its value is either "long", "short", or "narrow".

type

The value provided for this property in the options argument of the constructor or the default value ("language"). Its value is either "language", "region", "script", or "currency".

fallback

The value provided for this property in the options argument of the constructor or the default value ("code"). Its value is either "code" or "none".

Examples

Using resolvedOptions

const displayNames = new Intl.DisplayNames(['de-DE'], {type: 'region'});

const usedOptions = displayNames.resolvedOptions();
console.log(usedOptions.locale);   // "de-DE"
console.log(usedOptions.style);    // "long"
console.log(usedOptions.type);     // "region"
console.log(usedOptions.fallback); // "code"

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• Intl.DisplayNames