Classical Inheritance

gistfile1.js

// constructor function to create the parent
function Parent( name ){
  this.name = name || 'Bob';
}
// extending the parent
Parent.prototype.sayHi = function() {
  return 'Hi from ' + this.name;
}

// empty child constructor function
function Child() {};
// child will now inherit from the parent by pointing it's prototype to an instance of the parent
Child.prototype = new Parent();
// create instance of the child
var childInstance = new Child();
// call a method on the parent from the child instance
childInstance.sayHi();