Hi,

Am Freitag, 27. Mai 2011 15:56:47 UTC+2 schrieb MarisO:
>
> To find first defined Option in scala  I do this: 
>
> sol.find(_.isDefined).getOrElse(None) 
>
> I managed to do the same in clojure: 
>
> (some #(if (nil? %) false %) sol) 
>
> Is there a better way ?


Another way: (first (keep identity coll)).

user=> (first (keep identity [nil false 1 2 3]))
false
user=> (first (keep identity [nil 1 2 3]))
1
user=> (first (keep identity [nil nil nil]))
nil
user=> (first (keep identity []))
nil

If your collection does never contain false, you can simply use (some 
identity coll).

Sincerely
Meikel

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