1185-Day-of-the-Week.js

/**
 * @param {number} day
 * @param {number} month
 * @param {number} year
 * @return {string}
 */
const dayOfTheWeek = (day, month, year) => {
    const date = new Date(`${month}/${day}/${year}`);
    const daysOfTheWeek = [
        'Sunday',
        'Monday',
        'Tuesday',
        'Wednesday',
        'Thursday',
        'Friday',
        'Saturday'
    ];

    return daysOfTheWeek[date.getDay()];
};