First, your code snippet is wrong: you need a space before your first paren.
In coffeescript you can do any of the following, or a few other variants:
doSomething ->
stuff
, onerror
doSomething(->
stuff
, onerror
)
doSomething (->
stuff
), onerror
doSomething(
->
stuff
onerror
)
doSomething (-> stuff), onerror
