Can Node kill Ruby for new web apps?
You are right lautarodragan, it's called DRY principle.
I think I expressed myself wrong, what I meant is that in some cases the Copy & Paste is useful, not necessarily to copy all the code.
For example, if you have declared averybigvar it's best to copy & paste to avoid typo like avrybigvar.
(PS: I've updated my tip)
(dahm it, indentation don't works in comments)
Aslo for CoffeeScript:
setEmail = (email) ->