index.js

// Given a date, return the corresponding day of the week for that date.

// The input is given as three integers representing the day, month and year respectively.

// Return the answer as one of the following values { "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" }.

// Example 1:

// Input: day = 31, month = 8, year = 2019
// Output: "Saturday"
// Example 2:

// Input: day = 18, month = 7, year = 1999
// Output: "Sunday"
// Example 3:

// Input: day = 15, month = 8, year = 1993
// Output: "Sunday"

// Constraints:

// The given dates are valid dates between the years 1971 and 2100.

// Solution

const dayOfTheWeek = (day, month, year) => {
    const weekday = [
        "Sunday",
        "Monday",
        "Tuesday",
        "Wednesday",
        "Thursday",
        "Friday",
        "Saturday"
    ];
    const date = new Date(year, month - 1, day)
    return weekday[date.getDay()];
};