appkr

// "this" keyword
var makeRequest = function(url, callback) {
  var data = 10; // Ajax
  callback(data);
};

var obj = {
  someValue : 20,
  loadData: function(data) {
    var sum = this.someValue + data;

appkr

var createPerson = function(firstName, lastName) {
  var person = {};
  
  Object.defineProperties(person, {
    firstName : {
      value : firstName,
      enumerable : true
    },
    lastName : {
      value : lastName,

appkr

var createPerson = function(firstName, lastName) {
  var person = {
    firstName : firstName,
    lastName : lastName,
    sayHello : function () {
      return "Hi there?";
    }
  };
  
  Object.defineProperty(person, "fullName", {

appkr

var Person = function(firstName, lastName) {
  this.firstName = firstName;
  this.lastName = lastName;
};

Object.defineProperties(Person.prototype, {
  sayHi : {
    value : function () {
      return "Hi there";
    },

appkr

var Person = function(firstName, lastName) {
  this.firstName = firstName;
  this.lastName = lastName;
};

// every object from Person has below properties.
Object.defineProperties(Person.prototype, {
  sayHi : {
    value : function () {
      return "Hi there ?";

appkr

var EventTarget = function() {
  Object.defineProperty(this, "__listeners", {
    value: {}
  });
};

Object.defineProperties(EventTarget.prototype, {
  addListener: {
    value: function(type, listener) {
      if (typeof this.__listeners[type] === "undefined") {

appkr

.toolbar {
    background-color: #c6c6c6;
    /*height: 50px;*/
    padding: 5px;
}

.toolbar-item {
    display: inline-block;
    height: 50px;
    width: 50px;

appkr

var Shoe = function(shoeSize, shoeColor, forGender, constructStyle) {
    this.size = shoeSize;
    this.color = shoeColor;
    this.gender = forGender;
    this.construction = constructStyle;
};

Shoe.prototype = {
    putOn: function() {
        alert("Your " + this.construction + "'s " + "on, dude!");

appkr

Number.prototype.numberFormat = function (){
  return this.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
};

Object.prototype.getName = function() { 
   var funcNameRegex = /function (.{1,})\(/;
   var results = (funcNameRegex).exec((this).constructor.toString());
   return (results && results.length > 1) ? results[1] : "";
};

appkr

var parkRides = [
  ["Birch Bumper", 40],
  ["Pines Plunge", 55],
  ["Cedar Coaster", 20],
  ["Ferries Whell of Fires", 90]
];

var fastPassQueue = [
  "Cedar Coaster", 
  "Pines Plunge",