gistfile1.txt

--- COFFEE ------
constructor Animal: name =>
  @name = name
  Animal.count++

Animal.count: 0

Animal@move: meters =>
  alert(@name + " moved " + meters + "m.")

constructor Snake extends Animal

Snake@move: =>
  alert("Slithering...")
  super(5)

constructor Horse extends Animal: name => 
  super("horse with a name" + name)

Horse@move: =>
  alert("Galloping...")
  super(45)

----- JS -------
var Animal, Snake, Horse;
Animal = function Animal(name) {
  this.name = name;
  Animal.count ++;
  // note no return value 
}

Animal.count += 1;
Animal.prototype.move = function move(meters) {
  return alert(this.name + " moved " + meters + "m.");
}

Snake = function() {
  var args = Array.prototype.slice.call(arguments, 0, arguments.length);
  Animal.apply(this, args);
  // note no return value 
};
Snake.__superClass__ = Animal.prototype;
Snake.prototype = new Animal();
Snake.prototype.constructor = Snake;

Snake.prototype.move = function() {
  alert("Slithering...");
  return Snake.__superClass__.move.call(this, 5);
};

Horse = function(name) {
  Animal.call(this, "horse with a name " + name)
  // note no return value 
};
Horse.__superClass__ = Animal.prototype;
Horse.prototype = new Animal();
Horse.prototype.constructor = Horse;
Horse.prototype.move = function() {
  alert("Galloping...");
  return Horse.__superClass__.move.call(this, 45);
};
sam = new Snake("Sammy the Python");
tom = new Horse("Tommy the Palomino");
sam.move();
tom.move();