Example static and non static functions

Dummy.cs

class Dummy
  @helloStatic: (name)->
    "hello #{name} (static)"

  hello: (name) ->
    "hello #{name}"

alert Dummy.helloStatic("Gonzalo")

dummy = new Dummy
alert dummy.hello("Gonzalo")

Dummy.js

var Dummy, dummy;
Dummy = (function() {
  function Dummy() {}
  Dummy.helloStatic = function(name) {
    return "hello " + name + " (static)";
  };
  Dummy.prototype.hello = function(name) {
    return "hello " + name;
  };
  return Dummy;
})();
alert(Dummy.helloStatic("Gonzalo"));
dummy = new Dummy;
alert(dummy.hello("Gonzalo"));