Day Of Week

function dayOfWeek(input) {
    let day = Number(input[0]);

    switch (day) {
        case 1:
        console.log("Monday");
            break;
        case 2:
        console.log("Tuesday");
            break;
        case 3:
        console.log("Wednesday");
            break;
        case 4:
        console.log("Thursday");
            break;
        case 5:
        console.log("Friday");
            break;
        case 6:
        console.log("Saturday");
            break;
        case 7:
        console.log("Sunday");
            break;
        default:
            console.log("Error");
    }
}
dayOfWeek(["4"])