jashkenas--coffeescript/documentation/js/classes.js

var Animal, Horse, Snake, sam, tom;
var __extends = function(child, parent) {
  function ctor() { this.constructor = child; }
  ctor.prototype = parent.prototype;
  child.prototype = new ctor;
  if (typeof parent.extended === "function") parent.extended(child);
  child.__super__ = parent.prototype;
};
Animal = (function() {
  function Animal(_arg) {
    this.name = _arg;
    return this;
  }
  return Animal;
})();
Animal.prototype.move = function(meters) {
  return alert(this.name + " moved " + meters + "m.");
};
Snake = (function() {
  function Snake() {
    return Animal.apply(this, arguments);
  }
  return Snake;
})();
__extends(Snake, Animal);
Snake.prototype.move = function() {
  alert("Slithering...");
  return Snake.__super__.move.call(this, 5);
};
Horse = (function() {
  function Horse() {
    return Animal.apply(this, arguments);
  }
  return Horse;
})();
__extends(Horse, Animal);
Horse.prototype.move = function() {
  alert("Galloping...");
  return Horse.__super__.move.call(this, 45);
};
sam = new Snake("Sammy the Python");
tom = new Horse("Tommy the Palomino");
sam.move();
tom.move();