coffeescript/documentation/js/classes.js

var Animal, Horse, Snake, sam, tom;
var __extends = function(child, parent) {
    var ctor = function(){};
    ctor.prototype = parent.prototype;
    child.prototype = new ctor();
    child.prototype.constructor = child;
    if (typeof parent.extended === "function") parent.extended(child);
    child.__superClass__ = parent.prototype;
  };
Animal = function(_a) {
  this.name = _a;
  return this;
};
Animal.prototype.move = function(meters) {
  return alert(this.name + " moved " + meters + "m.");
};
Snake = function() {
  return Animal.apply(this, arguments);
};
__extends(Snake, Animal);
Snake.prototype.move = function() {
  alert("Slithering...");
  return Snake.__superClass__.move.call(this, 5);
};
Horse = function() {
  return Animal.apply(this, arguments);
};
__extends(Horse, Animal);
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();