Film Premiere

function filmPremiere(input) {
    let movie = input.shift();
    let moviePack = input.shift();
    let tickets = Number(input.shift());
    let ticketPrice = 0;

    switch (movie) {
        case "John Wick":
            switch (moviePack) {
                case "Drink":
                    ticketPrice = 12;
                    break;
                case "Popcorn":
                    ticketPrice = 15;
                    break;
                case "Menu":
                    ticketPrice = 19;
                    break;
            }
            break;
        case "Star Wars":
            switch (moviePack) {
                case "Drink":
                    ticketPrice = 18;
                    break;
                case "Popcorn":
                    ticketPrice = 25;
                    break;
                case "Menu":
                    ticketPrice = 30;
                    break;
            }
            break;
        case "Jumanji":
            switch (moviePack) {
                case "Drink":
                    ticketPrice = 9;
                    break;
                case "Popcorn":
                    ticketPrice = 11;
                    break;
                case "Menu":
                    ticketPrice = 14;
                    break;
            }
            break;
    }

    if (movie === "Star Wars" && tickets >= 4) {
        ticketPrice *= 0.7;
    } else if (movie === "Jumanji" && tickets === 2) {
        ticketPrice *= 0.85;
    }

    console.log(`Your bill is ${(ticketPrice * tickets).toFixed(2)} leva.`);
}

Решение с тернарен оператор:

function filmPremiere(input) {
    let movie = input.shift();
    let moviePack = input.shift();
    let tickets = Number(input.shift());

    let ticketPrice =
        movie === "John Wick" ? (moviePack === "Drink" ? 12 : moviePack === "Popcorn" ? 15 : 19) :
            movie === "Star Wars" ? (moviePack === "Drink" ? 18 : moviePack === "Popcorn" ? 25 : 30) :
                movie === "Jumanji" ? (moviePack === "Drink" ? 9 : moviePack === "Popcorn" ? 11 : 14) : 0;

    ticketPrice *=
        movie === "Star Wars" && tickets >= 4 ? 0.70 : movie === "Jumanji" && tickets === 2 ? 0.85 : 1;

    console.log(`Your bill is ${(ticketPrice * tickets).toFixed(2)} leva.`);
}