23 May
2011
23 May
'11
9:21 p.m.
On 24/05/2011, at 5:49 AM, Alexander Solla wrote:
There's a library function for it, but also:
filter ((/=) Nothing)
The problem with that in general is that it only applies to [Maybe t] if Eq t, but you don't actually _need_ t to support equality. filter isJust will do the job, where isJust is in Data.Maybe.