Parasitic Combination Inheritance Pattern

pcip.js

Object.create = function(o) {
  function F() {};
  F.prototype = o;
  return new F();
};

var inheritP = function(child, parent) {
  parentDup = Object.create(parent.prototype);
  parentDup.constructor = child;
  child.prototype = parentDup;
}

function Vehicle(tyres) {
  this.tyres = tyres;
}

Vehicle.prototype.describe = function() {
  console.log('A Vehicle with '+ this.tyres + ' Tyres!');
}

function Car() {
  Vehicle.call(this, 4);
}

inheritP(Car, Vehicle);

function Scooter() {
  Vehicle.call(this, 2);
}

inheritP(Scooter, Vehicle);