Just to add to the confusion: I want compact to remove nil and  
false. :-)

> Perhaps another nudge for compact is that it's not as simple as  
> (filter identity coll), to wit:
>
> user> (filter identity [1 2 nil false 4])
> (1 2 4)
>
> user> (filter #(not (nil? %)) [1 2 nil false 4])
> (1 2 false 4)
>
> So unless you want to catch false in your net you really need to be  
> doing the latter, which again is not unreasonable, but just a little  
> messy to be using frequently.
>
>
> Paul
>
>

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