vessel.coffee

class Vessel

  constructor: (@type, @name) ->
    
# Create a new ship!
ship = new Vessel('Schooner', 'Wasa')
console.debug ship.type #>> Schooner

vessel.js

var Vessel, ship;
Vessel = (function() {
  function Vessel(type, name) {
    this.type = type;
    this.name = name;
  }
  return Vessel;
})();

ship = new Vessel('Schooner', 'Wasa');
console.debug(ship.type);