demos.js

// ** Mad Libs **
// Ask the user for the words to fill in the blanks
var who = prompt("a person");
var what = prompt("a thing");
var amount = prompt("a number");
// prompt always returns a string. here we convert it to a number
amount = Number(amount);

// calculate the total
var total = amount * 5;

// concatenate all the parts together using +
console.log(who + " went downtown and bought some " + what + ". They bought " + amount + ", paying $" + total + ".");



// Ticket Vend
var adultTicketsCount = Number( prompt("How many adult tickets?") );
var childTicketsCount = Number( prompt("How many child tickets?") );

var totalPrice = adultTicketsCount * 10 + childTicketsCount * 5;
var totalTicketsCount = adultTicketsCount + childTicketsCount;

if (totalTicketsCount >= 12) {
    totalPrice = totalPrice - (.20 * totalPrice);
}

var memberYesOrNo = prompt("Are you a member? Type 'yes' or 'no'.");

if (memberYesOrNo === "yes") {
    totalPrice = totalPrice * .9;
} else {
    console.log("You can get a 10% discount if you join our membership program.");
}

console.log("Total: $" + totalPrice);


// Ticket Vend 2
var totalPrice = 0;
var totalTicketsCount = 0;

var choice;
do {
    choice = prompt("Which ticket? (adult, child, or done)");
    if (choice === "adult") {
        totalTicketsCount++;
        totalPrice += 10;
    } else if (choice === "child") {
        totalTicketsCount++;
        totalPrice += 5;
    }
} while (choice !== "done");


if (totalTicketsCount >= 12) {
    totalPrice = totalPrice - (.20 * totalPrice);
}

console.log("Total: $" + totalPrice);