multiple inheritance

gistfile1.js

// Coffee
class Animal
  this.species; 
  
class Human extends Animal
  this.species = "mammal";
  this.sex;
  
class Woman extends Human
  this.sex = "female";

class Cyborg extends Human extends Animal
	this.species = "unknown";
  this.sex = male;
  
// JS
var Animal, Cyborg, Human, Woman,
  extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
  hasProp = {}.hasOwnProperty;

Animal = (function() {
  function Animal() {}

  Animal.species;

  return Animal;

})();

Human = (function(superClass) {
  extend(Human, superClass);

  function Human() {
    return Human.__super__.constructor.apply(this, arguments);
  }

  Human.species = "mammal";

  Human.sex;

  return Human;

})(Animal);

Woman = (function(superClass) {
  extend(Woman, superClass);

  function Woman() {
    return Woman.__super__.constructor.apply(this, arguments);
  }

  Woman.sex = "female";

  return Woman;

})(Human);

Cyborg = (function(superClass) {
  extend(Cyborg, superClass);

  function Cyborg() {
    return Cyborg.__super__.constructor.apply(this, arguments);
  }

  Cyborg.species = "unknown";

  Cyborg.sex = male;

  return Cyborg;

})(extend(Human, Animal));