Pete Hodgson talks about how we can expand our programming minds by using JavaScript in unusual and experimental ways in his presentation from Forward JS. http://www.youtube.com/watch?v=n9qzwI4Krmo

eatenCakes.js

/*
* Pete Hodgson talks about how we can expand our programming minds by 
* using JavaScript in unusual and experimental ways in his presentation 
* from Forward JS. 
* http://www.youtube.com/watch?v=n9qzwI4Krmo
*/

cakes = ["coffee", "cheese", "bundt", "angel"];

function Person() {
    this.cakesEaten = 0;
}
Person.prototype.eatCake = function() {
    this.cakesEaten += 1;
}

Person.prototype.stillHungry = function() {
    return this.cakesEaten < 3;
}
console.log('Version 1');
var george = new Person();
cakes.forEach(george.eatCake);
console.log('Hungry : ', george.stillHungry());
console.log('Eaten Cakes : ', george.cakesEaten);

/* -------------------------------------------- */
function createPerson() {
    var cakesEaten = 0;
    return {
        eatCake : function() {
            cakesEaten += 1;
        },
        stillHungry : function() {
            return cakesEaten < 3;
        },
        eatenCakes : function() {
            return cakesEaten;
        }
    };
}

console.log('Version 2');
var john = createPerson();
cakes.forEach(john.eatCake);
console.log('Hungry : ', john.stillHungry());
console.log('Eaten Cakes : ', john.eatenCakes());