gistfile1.coffee

class Foo
  bar: -> 'bar'        # Defining an instance method

Foo::baz = -> 'baz'    # Appending an instance method on the class prototype
Foo.bacon = -> 'tasty' # Definining a method on the class itself

# Instance methods
foo = new Foo()
foo.bar()   # bar
foo.baz()   # baz
foo.bacon() # undefined

# Static methods
Foo.bacon() # tasty
Foo.bar()   # undefined
Foo.baz()   # undefined

And the static/instance methods can have the same name:

class Foo
  bar: -> 'instance bar'

Foo.bar = -> 'static bar'


foo = new Foo()
foo.bar() # instance bar
Foo.bar() # static bar