intl-format-cache

What is intl-format-cache?

The intl-format-cache npm package is a utility for caching instances of Intl formatters, such as Intl.DateTimeFormat, Intl.NumberFormat, and Intl.RelativeTimeFormat. This can improve performance by reusing formatter instances instead of creating new ones each time formatting is needed.

What are intl-format-cache's main functionalities?

Caching DateTimeFormat instances

This feature allows you to cache instances of Intl.DateTimeFormat. The code sample demonstrates how to create and reuse a DateTimeFormat instance for formatting dates in 'en-US' locale.

const { getDateTimeFormat } = require('intl-format-cache');
const dateTimeFormat = getDateTimeFormat('en-US', { year: 'numeric', month: 'long', day: 'numeric' });
console.log(dateTimeFormat.format(new Date()));

Caching NumberFormat instances

This feature allows you to cache instances of Intl.NumberFormat. The code sample demonstrates how to create and reuse a NumberFormat instance for formatting numbers as currency in 'en-US' locale.

const { getNumberFormat } = require('intl-format-cache');
const numberFormat = getNumberFormat('en-US', { style: 'currency', currency: 'USD' });
console.log(numberFormat.format(123456.789));

Caching RelativeTimeFormat instances

This feature allows you to cache instances of Intl.RelativeTimeFormat. The code sample demonstrates how to create and reuse a RelativeTimeFormat instance for formatting relative time in 'en-US' locale.

const { getRelativeTimeFormat } = require('intl-format-cache');
const relativeTimeFormat = getRelativeTimeFormat('en-US');
console.log(relativeTimeFormat.format(-1, 'day'));

Other packages similar to intl-format-cache

intl

The intl package provides a polyfill for the ECMAScript Internationalization API, which includes Intl.DateTimeFormat, Intl.NumberFormat, and Intl.RelativeTimeFormat. Unlike intl-format-cache, it focuses on providing the functionality where it is not natively available, rather than caching instances.

formatjs

The formatjs package is a collection of libraries for internationalization in JavaScript, including react-intl and intl-messageformat. It provides more comprehensive solutions for formatting dates, numbers, and messages, but does not specifically focus on caching formatter instances like intl-format-cache.

globalize

The globalize package provides a comprehensive internationalization library based on the Unicode CLDR data. It supports formatting dates, numbers, and messages, and offers more extensive localization features compared to intl-format-cache, but does not specifically focus on caching formatter instances.

README

Intl Format Cache

Produces instances of JavaScript Intl formats, and caches them for reuse.

Overview

This is an helper package used within Yahoo's IntlJS suite. It provides a cache layer for creating Intl format instances: IntlNumberFormat, Intl.DateTimeFormat, and IntlMessageFormat.

License

This software is free to use under the Yahoo! Inc. BSD license. See the LICENSE file for license text and copyright information.