intl-unified-numberformat

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

Installation

npm install @f-fjs/intl-unified-numberformat

Requirements

This package requires the following capabilities:

• Intl.PluralRules

Features

Everything in the https://github.com/tc39/proposal-unified-intl-numberformat proposal with the caveats below.

Caveats

1. compact notation is currently buggy in certain locales with special compact rules (such as zh-Hant or Somali) See https://github.com/tc39/proposal-unified-intl-numberformat/issues/26 for more details.

Usage

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

import {UnifiedNumberFormat} from '@f-fjs/intl-unified-numberformat';
UnifiedNumberFormat.__addLocaleData(
  require('@f-fjs/intl-unified-numberformat/dist/locale-data/zh.json') // locale-data for zh
);
UnifiedNumberFormat.__addLocaleData(
  require('@f-fjs/intl-unified-numberformat/dist/locale-data/en.json') // locale-data for en
);

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

To use this as a polyfill, override Intl.NumberFormat as below:

import '@f-fjs/intl-unified-numberformat/polyfill';
if (typeof Intl.NumberFormat.__addLocaleData === 'function') {
  Intl.NumberFormat.__addLocaleData(
    require('@f-fjs/intl-unified-numberformat/dist/locale-data/zh.json') // locale-data for zh
  );
  Intl.NumberFormat.__addLocaleData(
    require('@f-fjs/intl-unified-numberformat/dist/locale-data/en.json') // locale-data for en
  );
}

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

new Intl.NumberFormat('en-US', {
  notation: 'engineering',
}).format(987654321); // 987.7E6

new Intl.NumberFormat('zh', {
  style: 'currency',
  currency: 'EUR',
  currencySign: 'accounting',
}).format(-100); // (€100.00)

Supported Units

Currently intl-unified-numberformat has a list of sanctioned units as below

type Unit =
  | 'acre'
  | 'bit'
  | 'byte'
  | 'celsius'
  | 'centimeter'
  | 'day'
  | 'degree'
  | 'fahrenheit'
  | 'fluid-ounce'
  | 'foot'
  | 'gallon'
  | 'gigabit'
  | 'gigabyte'
  | 'gram'
  | 'hectare'
  | 'hour'
  | 'inch'
  | 'kilobit'
  | 'kilobyte'
  | 'kilogram'
  | 'kilometer'
  | 'liter'
  | 'megabit'
  | 'megabyte'
  | 'meter'
  | 'mile'
  | 'mile-scandinavian'
  | 'millimeter'
  | 'milliliter'
  | 'millisecond'
  | 'minute'
  | 'month'
  | 'ounce'
  | 'percent'
  | 'petabyte'
  | 'pound'
  | 'second'
  | 'stone'
  | 'terabit'
  | 'terabyte'
  | 'week'
  | 'yard'
  | 'year';