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Kocher, Manuel authoredKocher, Manuel authored
i18next.js 6.06 KiB
import i18next from 'i18next';
/**
* Like Intl.DateTimeFormat().format() but uses the current language as locale.
*
* A i18next instance can be created with createInstance()
*
* @param {i18next.i18n} i18n - The i18next instance
* @param {Date} date - The date to format
* @param {object} options - Options passed to Intl.DateTimeFormat
* @returns {string} The formatted datetime
*/
export function dateTimeFormat(i18n, date, options = {}) {
return new Intl.DateTimeFormat(i18n.languages, options).format(date);
}
/**
* Like Intl.NumberFormat().format() but uses the current language as locale.
*
* A i18next instance can be created with createInstance()
*
* @param {i18next.i18n} i18n - The i18next instance
* @param {number} number - The number to format
* @param {object} options - Options passed to Intl.NumberFormat
* @returns {string} The formatted number
*/
export function numberFormat(i18n, number, options = {}) {
return new Intl.NumberFormat(i18n.languages, options).format(number);
}
export function humanFileSize(bytes, si = false) {
const thresh = si ? 1000 : 1024;
if (Math.abs(bytes) < thresh) {
return bytes + ' B';
}
const units = ['kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
let u = -1;
do {
bytes /= thresh;
++u;
} while (Math.abs(bytes) >= thresh && u < units.length - 1);
return bytes.toFixed(1) + ' ' + units[u];
}
/**
* @param {string} namespace The namespace to override
* @returns {string} The new namespace name
*/
function getOverrideNamespace(namespace) {
// This just needs to be different to the namespace, make it special
// so it's clear what it is used for in case it ends up in some error
// message or something
return '--' + namespace + '-override';
}
/**
* Creates a new i18next instance that is fully initialized.
*
* Call changeLanguage() on the returned object to change the language.
*
* @param {object} languages - Mapping from languages to translation objects
* @param {string} lng - The default language
* @param {string} fallback - The fallback language to use for unknown languages or untranslated keys
* @param {string} [namespace] - The i18next namespace to load, defaults to 'translation'
* @returns {i18next.i18n} A new independent i18next instance
*/
export function createInstance(languages, lng, fallback, namespace) {
if (namespace === undefined) {
namespace = 'translation';
}