Contructor functions

A constructor function is given a Capitalized name to make it clear that it is a constructor

var Car = function() {
  this.wheels = 4;
  this.engines = 1;
  this.seats = 5;

To use a constructor function we call it with the new keyword in front of it like:

var myCar = new Car()

To modify the properties of the new Car instance that you just created:

myCar.nickname = "Honda"

You can also pass in args to your constructor function, like you do in functions, of course.

Properties = Attributes Methods = Functions

Private methods and properties

To do this, we create the variable inside the constructor using the var keyword we’re familiar with, instead of creating it as a property of this.

Functions OOP
this public
var private