OO is strange...

demo.coffee

obj = require('./fake').obj
global.show = console.log

show (obj 'f1', 'xx')
show (obj 'f2', 'qq')
show (obj 'f3', 'ss')
obj '.set', 'f3', (x) -> 'this is f3 ' + x
show (obj 'f3', 'ss')
obj2 = (obj '.clone', 'xx')

show '\nnext...\n'

show (obj2 'f1', 'xx')
show (obj2 'f2', 'qq')
show (obj2 'f3', 'ss')
obj2 '.set', 'f3', (x) -> 'this is f3 ' + x
show (obj2 'f3', 'more')
obj3 = (obj '.clone', 'xx')
show obj3

fake.coffee

scope =
  f1: (x) -> 'this is f1 ' + x
  f2: (x) -> 'this is f2 ' + x

exports.obj = (x, x2, x3=false) ->
  # show scope
  if scope[x]? then scope[x] x2
  else if x is '.set' then scope[x2] = x3
  else if x is '.get' then scope[x2]
  else if x is '.clone' then exports.obj
  else 'unknown message'

output.log

➤➤ coffee demo.coffee 
this is f1 xx
this is f2 qq
unknown message
this is f3 ss

next...

this is f1 xx
this is f2 qq
this is f3 ss
this is f3 more
[Function]

You like coffee?

@unionx 我喜欢 V8 这个平台, 上面让人舒适的语言很少.