06. Theatre Promotions(with ternary operator)

function theatrePromotions(day, age) {
    let sum = 0;

    if(age >= 0 && age < 123) {
        if (day === "Weekday") {
            sum = age > 18 && age <= 64 ? 18 : 12;
        } else if (day === "Weekend") {
            sum = age > 18 && age <= 64 ? 20 : 15;
        } else if (day === "Holiday"){
            sum = age <= 18 ? 5 : age > 64 ? 10 : 12;
        }
    }
    console.log(sum === 0 ? "Error!" : `${sum}$`);
}