@formatjs/intl-pluralrules

What is @formatjs/intl-pluralrules?

@formatjs/intl-pluralrules is a JavaScript library that provides a polyfill for the Intl.PluralRules API, which is used for pluralization in internationalized applications. This package allows developers to determine the plural form of a given number in a specific locale, which is essential for creating applications that support multiple languages.

What are @formatjs/intl-pluralrules's main functionalities?

Basic Pluralization

This feature allows you to determine the plural form of a number in a specific locale. In this example, the locale is set to 'en-US', and the plural forms for the numbers 1 and 2 are 'one' and 'other', respectively.

const { PluralRules } = require('@formatjs/intl-pluralrules');
const pr = new PluralRules('en-US');
console.log(pr.select(1)); // 'one'
console.log(pr.select(2)); // 'other'

Handling Multiple Locales

This feature demonstrates how to handle pluralization for multiple locales. In this example, plural forms are determined for both 'en-US' and 'fr-FR' locales.

const { PluralRules } = require('@formatjs/intl-pluralrules');
const prEn = new PluralRules('en-US');
const prFr = new PluralRules('fr-FR');
console.log(prEn.select(1)); // 'one'
console.log(prFr.select(1)); // 'one'
console.log(prEn.select(2)); // 'other'
console.log(prFr.select(2)); // 'other'

Using Plural Categories

This feature allows you to retrieve the plural categories available for a specific locale. In this example, the locale is set to 'ru-RU', and the available plural categories are 'one', 'few', 'many', and 'other'.

const { PluralRules } = require('@formatjs/intl-pluralrules');
const pr = new PluralRules('ru-RU');
console.log(pr.resolvedOptions().pluralCategories); // ['one', 'few', 'many', 'other']

Other packages similar to @formatjs/intl-pluralrules

make-plural

make-plural is a JavaScript library that provides functions for determining the plural form of a number in various locales. It is similar to @formatjs/intl-pluralrules in that it supports multiple languages and locales, but it offers a more extensive set of pluralization rules and customization options.

i18next

i18next is a popular internationalization framework for JavaScript that includes support for pluralization among many other features. While it is more comprehensive than @formatjs/intl-pluralrules, it can be overkill if you only need pluralization functionality.

globalize

Globalize is a JavaScript library for internationalization and localization that includes support for pluralization. It is similar to @formatjs/intl-pluralrules but also provides additional features such as number formatting, date and time formatting, and message formatting.

README

intl-pluralrules

We've migrated the docs to https://formatjs.io.