ritm-date/dist/format.js

Date & time lightweight formatter

import { locales } from './locales';
const pad = (n, len = 2) => String(n).padStart(len, '0');
const getOffsetString = (date) => {
    const offsetMinutes = -date.getTimezoneOffset();
    const sign = offsetMinutes >= 0 ? '+' : '-';
    const absMinutes = Math.abs(offsetMinutes);
    const hours = pad(Math.floor(absMinutes / 60));
    const minutes = pad(absMinutes % 60);
    return `${sign}${hours}:${minutes}`;
};
const applyMask = (mask, parts) => {
    const tokens = Object.keys(parts).sort((a, b) => b.length - a.length);
    const abbreviationsRegex = new RegExp(tokens.join('|'), 'g');
    return mask.replace(abbreviationsRegex, match => { var _a; return (_a = parts[match]) !== null && _a !== void 0 ? _a : match; });
};
export const formatDate = (date, mask, locale = 'en', originalInput) => {
    const loc = locales[locale || 'en'];
    let targetDate = date;
    if (!mask.includes('ZZ') && typeof originalInput === 'string') {
        const match = originalInput.match(/([+-]\d{2}):?(\d{2})$|Z$/);
        if (match) {
            if (!(match[0] === 'Z' ||
                match[0] === '+00' ||
                match[0] === '+00:00' ||
                match[0] === '-00:00')) {
                // Has not nullish diff
                const [, hh, mm] = match;
                const offsetMinutes = parseInt(hh, 10) * 60 + parseInt(mm, 10);
                const localOffset = -date.getTimezoneOffset();
                const diff = (offsetMinutes - localOffset) * 60 * 1000;
                targetDate = new Date(date.getTime() + diff);
            }
        }
        else {
            const diff = -date.getTimezoneOffset() * 60 * 1000;
            targetDate = new Date(date.getTime() + diff);
        }
    }
    const monthIndex = targetDate.getMonth();
    const day = targetDate.getDay();
    const parts = {
        YYYY: String(targetDate.getFullYear()),
        YY: String(targetDate.getFullYear()).slice(-2),
        MM: pad(monthIndex + 1),
        DD: pad(targetDate.getDate()),
        D: String(targetDate.getDate()),
        ddd: loc.weekDays[day - 1],
        dd: loc.shortWeekDays[day - 1],
        HH: pad(targetDate.getHours()),
        h: String(targetDate.getHours()),
        mm: pad(targetDate.getMinutes()),
        ss: pad(targetDate.getSeconds()),
        MMMM: loc.months[monthIndex] || '',
        MMM: loc.shortMonths[monthIndex] || '',
        ZZ: getOffsetString(targetDate)
    };
    return applyMask(mask, parts);
};