makeSandwich.js

var makeSandwich = function (bread, meat) {
   var sandwich = "My sandwich is " + meat + " on " + bread + ".";
   return sandwich;
};
console.log(makeSandwich("rye","roast beef"));

var toppingAvailable = function (topping) {
    var available = {
        "pepperoni": true,
        "mushrooms": true
    };
    if (available[topping] === true) { return true; }
    else { return false; }
};
console.log("I can get pepperoni: " + toppingAvailable("pepperoni"));
console.log("I can get pineapple: " + toppingAvailable("pineapple"));


var willFeed = function (slices) {
    var slicesPerPerson = 3;
    var people = Math.floor( slices / slicesPerPerson );
    return people;
};
console.log("An 8-slice pizza will feed " + willFeed(8) + " people.");
console.log("A 16-slice pizza will feed " + willFeed(16) + " people.");

// JSON data
var pizzas = {
    "white": {
        "name": "Pizza Bianca",
        "toppings": [ "ricotta", "garlic" ]
    },
    "meat": {
        "name": "Meat Lover's",
        "toppings": [ "pepperoni", "ham", "sausage", "bacon" ]
    },
    "veggie": {
        "name": "Veggie Lover's",
        "toppings": [ "onions", "mushrooms", "peppers", "olives" ]
    }
};