cool example of javascript inheritance from http://alexsexton.com/blog/2013/04/understanding-javascript-inheritance/

inheritance.js

var defaults = {
  zero: 0,
  one: 1
};

var myOptions = Object.create(defaults);
var yourOptions = Object.create(defaults);

// When I want to change *just* my options
myOptions.zero = 1000;

// When you wanna change yours
yourOptions.one = 42;

// When we wanna change the **defaults** even after we've got our options
// even **AFTER** we've already created our instances
defaults.two = 2;

myOptions.two; // 2
yourOptions.two; // 2