32 lines
925 B
JavaScript
32 lines
925 B
JavaScript
import { normalizeIntlDate } from './normalizeIntlDate.js';
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const monthsLocaleCache = {};
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/**
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* @desc Returns month names for locale
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* @param {string} options.locale locale
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* @param {string} [options.style=long] long, short or narrow
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* @returns {Array} like: ['January', 'February', ...etc].
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*/
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export function getMonthNames({ locale, style = 'long' } = {}) {
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let months = monthsLocaleCache[locale] && monthsLocaleCache[locale][style];
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if (months) {
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return months;
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}
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months = [];
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const formatter = new Intl.DateTimeFormat(locale, { month: style });
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for (let i = 0; i < 12; i += 1) {
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const date = new Date(2019, i, 1);
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const formattedDate = formatter.format(date);
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const normalizedDate = normalizeIntlDate(formattedDate);
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months.push(normalizedDate);
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}
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monthsLocaleCache[locale] = monthsLocaleCache[locale] || {};
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monthsLocaleCache[locale][style] = months;
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return months;
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}
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