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

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