JavaScript Intl Complete Reference

Last Updated : 18 Apr, 2025

Intl in JavaScript is an object that is used for the ECMAScript Internationalization API namespace.

Intl.function()

Example 1: The followingIntlDateTimeFormat. prototype. resolvedOptions. The following examples illustrate the IntlDateTimeFormat prototype’s () method in JavaScript:

JavaScript

    const geeks = new Intl.DateTimeFormat('zh-CN', { timeZone: 'UTC' });
    const result = geeks.resolvedOptions();
    console.log(result.locale);
    console.log(result.calendar);
    console.log(result.timeZone);
    
    const geeks1 = new Intl.DateTimeFormat('LT');
    const result1 = geeks1.resolvedOptions();
    console.log(result1.locale);
    console.log(result1.calendar);

Output:

zh-CN
gregory
UTC
lt
gregory

JavaScript Intl Methods: The complete list of JavaScript Intl methods are listed below:

Method	Description
resolvedOptions()	The locale and collation options are computed during the initialization of this Collator object.
supportedLocalesOf()	It can be collated without resorting to the runtime’s default locale.
getCanonicalLocales()	Returns an array containing the canonical locale names.
format()	Returns a string with a language-specific representation of the list.
resolvedOptions()	The location and style formatting choices were made when the current IntlListFormat object was built.
formatToParts()	Format a list of values in a locale-aware fashion.
supportedLocalesOf()	The provided locales are supported in list formatting.
supportedLocalesOf()	The provided locales are supported in date and time formatting.
resolvedOptions()	The locale, date, and time formatting options are computed during the initialization of this DateTimeFormat object.
formatRangeToParts()	The formatted date range is produced by DateTimeFormat formatters.
format()	The locale and formatting options of this IntlDateTimeFormat object.
formatRange()	The locale and options provided when instantiating IntlDateTimeFormat object.
formatToParts()	Allows locale-aware formatting of strings produced by DateTimeFormat formatters.

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