Extends Date Object adding fancier collections

date.extensions.js

Object.assign(Date, {
    emojiclocks: [11,...Array(23).keys()].map(c=>String.fromCodePoint(128336+c%12))
}, {
    dayperiods: ` ${['',...
    'evening afternoon morning night'
        .split(/ /)].copyWithin(0,4).join(' ')} `
        .replace(/\w+ /g, (w, i) => w.repeat(i / 7 + 3))
        .match(/\w+/g)
        .reverse()
        .slice(1)
}, {
    weekdays: ['', ...[...Array(7).keys()].map(weekday => new Date(2e3, 1, weekday).toLocaleString('en', ({
        weekday: 'long'
    })))]
}, {
    months: ['', ...[...Array(12).keys()].map(month => new Date(2e3, month).toLocaleString('en', ({
        month: 'long'
    })))]
}, {
    quarters: /../g [Symbol.match]
    `thstndrd`.reduce((acc, itr, idx, arr) => ({
        ...acc,
        [`q${++idx}`]: `${idx}${arr[(idx-20)%10] || arr[idx] || arr[0]} Quarter`
    }), {})
});