Supershort version of Object.create - extend pattern

simpleObjectCreateExtend.js

// The supershort version
// with no polyfills or extras (as super, named constructors etc.)

// And nice way to handle inheritance is by creating a base object
// with an extend method
var Base = {
  extend: function(props){
    // A new object with this object as its prototype
    var obj = Object.create(this);
    // Assign properties to the new object
    Object.assign(obj,props);
    return obj;
  }
};

// Now we can do things in a clean object oriented way
var Organism = Base.extend({
  alive: true,
  greet: function(){
    return "Hi I am " + (this.alive ? "alive" : "dead");
  }
});

var Animal = Organism.extend({
  canMove: true,
  greetOrganism: Organism.greet,
  greet:function(){
    return this.greetOrganism() + ' and I ' + (this.canMove ? "can move" : "can't move");
  }
});

var Dog = Animal.extend({
  name: "Fido",
  barks: true,
  greetAnimal: Animal.greet,
  greet: function(){
    return this.greetAnimal() + ' and I ' + (this.barks ? "bark" : "don't bark");
  }
});

var aDog = Dog.extend({name:"Puppe"});
var aDeadDog = Dog.extend({name:"Muppe",barks:false,canMove:false,alive:false});