Figuring out prototypes

proto.coffee

sys = require('sys')

print = sys.print

class A
        bar: ->
                print "A's bar\n"
                this.baz()
        baz: ->
                print "A's baz\n"

class B extends A
        baz: ->
                print "B's baz\n"
a = new A
a.bar()
b = new B
b.bar()

# Prints:
#
# A's bar
# A's baz
# A's bar
# B's baz