CoffeeScript class

class.coffee

class I
  doErrands: ->
    'I did ...'
me = I
I = new I

console.log me.doErrands?() #undefined
console.log I.doErrands?()  #I did ...

# // Generated by CoffeeScript 1.7.1
# (function() {
#   var I, me;
# 
#   I = (function() {
#     function I() {}
#     I.prototype.doErrands = function() {
#       return 'I did ...';
#     };
#     return I;
#   })();
# 
#   me = I;
#   I = new I;
# 
#   console.log(typeof me.doErrands === "function" ? me.doErrands() : void 0);
#   console.log(typeof I.doErrands === "function" ? I.doErrands() : void 0);
# 
# }).call(this);