@formatjs/intl-unified-numberformat is a polyfill for the ECMAScript Internationalization API's Unified NumberFormat, which provides a way to format numbers in a locale-sensitive manner. This package is particularly useful for applications that need to support multiple locales and require consistent number formatting across different environments.

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

Basic Number Formatting

This feature allows you to format numbers according to the locale specified. In this example, the number 1234567.89 is formatted according to the 'en-US' locale.

const UnifiedNumberFormat = require('@formatjs/intl-unified-numberformat');
const formatter = new UnifiedNumberFormat('en-US');
console.log(formatter.format(1234567.89)); // Output: 1,234,567.89

Currency Formatting

This feature allows you to format numbers as currency. In this example, the number 1234567.89 is formatted as USD currency according to the 'en-US' locale.

const UnifiedNumberFormat = require('@formatjs/intl-unified-numberformat');
const formatter = new UnifiedNumberFormat('en-US', { style: 'currency', currency: 'USD' });
console.log(formatter.format(1234567.89)); // Output: $1,234,567.89

Percent Formatting

This feature allows you to format numbers as percentages. In this example, the number 0.1234 is formatted as a percentage according to the 'en-US' locale.

const UnifiedNumberFormat = require('@formatjs/intl-unified-numberformat');
const formatter = new UnifiedNumberFormat('en-US', { style: 'percent' });
console.log(formatter.format(0.1234)); // Output: 12%

Unit Formatting

This feature allows you to format numbers with units. In this example, the number 60 is formatted as miles per hour according to the 'en-US' locale.

const UnifiedNumberFormat = require('@formatjs/intl-unified-numberformat');
const formatter = new UnifiedNumberFormat('en-US', { style: 'unit', unit: 'mile-per-hour' });
console.log(formatter.format(60)); // Output: 60 mph

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Readme

Source

`intl-unified-numberformat`

A ponyfill for intl-unified-numberformat. This wraps Intl.NumberFormat and has the exact same APIs.

Installation

npm install @formatjs/intl-unified-numberformat

Requirements

This package requires the following capabilities:

Intl.PluralRules

Usage

To use the ponyfill, import it along with its data:

import {UnifiedNumberFormat} from '@formatjs/intl-unified-numberformat'
UnifiedNumberFormat.__addUnitLocaleData(
  'bit',
  ...require('../dist/locale-data/bit/zh') // locale-data for zh for unit `bit`
);
UnifiedNumberFormat.__addUnitLocaleData(
  'bit',
  ...require('../dist/locale-data/bit/en')  // locale-data for zh for unit `bit`
);

new UnifiedNumberFormat('zh', {
    style: 'unit',
    unit: 'bit',
    unitDisplay: 'long'
}).format(1000) // 1,000比特

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Last updated on 16 Aug 2019

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