07. Hotel Room

Решение с if-else:

function hotelRoom(input) {
    let mount = input[0];
    let nights = Number(input[1]);
    let apartment = 0;
    let studio = 0;

    if (mount === "May" || mount === "October") {
        apartment = 65;
        studio = 50;
        if (nights > 7 && nights <= 14) {
            studio *= 0.95;
        } else if (nights > 14) {
            studio *= 0.7;
        }
    } else if (mount === "June" || mount === "September") {
        apartment = 68.7;
        studio = 75.2;
        if (nights > 14) {
            studio *= 0.8;
        }
    } else if (mount === "July" || mount === "August") {
        apartment = 77;
        studio = 76;
    }

    if (nights > 14) {
        apartment *= 0.9;
    }

    console.log(`Apartment: ${(apartment * nights).toFixed(2)} lv.`);
    console.log(`Studio: ${(studio * nights).toFixed(2)} lv.`);
}

Решение със switch:

function hotelRoom(input) {
    let mount = input[0];
    let nights = Number(input[1]);
    let apartment = 0;
    let studio = 0;

    switch (mount) {
        case "May":
        case "October":
            apartment = 65;
            studio = 50;
            if (nights > 7 && nights <= 14) {
                studio *= 0.95;
            } else if (nights > 14) {
                studio *= 0.7;
            }
            break;

        case "June":
        case "September":
            apartment = 68.7;
            studio = 75.2;
            if (nights > 14) {
                studio *= 0.8;
            }
            break;

        case "July":
        case "August":
            apartment = 77;
            studio = 76;
            break;
    }

    if (nights > 14) {
        apartment *= 0.9;
    }

    console.log(`Apartment: ${(apartment * nights).toFixed(2)} lv.`);
    console.log(`Studio: ${(studio * nights).toFixed(2)} lv.`);
}

РЕШЕНИЕ С ТЕРНАРЕН ОПЕРАТОР:

function hotelRoom(input) {
    let mount = input[0];
    let nights = Number(input[1]);

    let apartment = (mount === "May" || mount === "October") ? 65 * (nights > 14 ? 0.9 : 1) :
                    (mount === "June" || mount === "September") ? 68.7 * (nights > 14 ? 0.9 : 1) :
                    (mount === "July" || mount === "August") ? 77 * (nights > 14 ? 0.9 : 1) : 0;

    let studio = (mount === "May" || mount === "October") ? 50 * (nights > 7 && nights <= 14 ? 0.95 : nights > 14 ? 0.7 : 1) :
                 (mount === "June" || mount === "September") ? 75.2 * (nights > 14 ? 0.8 : 1) :
                 (mount === "July" || mount === "August") ? 76 : 0;

    console.log(`Apartment: ${(apartment * nights).toFixed(2)} lv.`);
    console.log(`Studio: ${(studio * nights).toFixed(2)} lv.`);
}