Re: [Haskell-cafe] Removing alternate items from a list

Christopher Done wrote:

Can't forget fix in a game of code golf!

...

(fix $ \f (x:_: xs) -> x : f xs) [1..] => [1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,4...

Ho, good shot! It only works for infinite lists, though: Prelude> (fix $ \f (x:_: xs) -> x : f xs) [1..10] [1,3,5,7,9*** Exception: <interactive>:1:7-30: Non-exhaustive patterns in lambda Regards, Yitz