
28 Dec
2016
28 Dec
'16
12:10 p.m.
If you want something even simpler: asum [Nothing, Just True, Nothing, Just False]
From Data.Foldable :)
On Wed, 28 Dec 2016, 10:56 am Imants Cekusins,
discovered this handy snippet today (duh :):
foldl (<|>) Nothing [Nothing, Just 1, Nothing, Just 2] Just 1
basically, pick first Just from a list of Maybes
http://hackage.haskell.org/package/base-4.9.0.0/docs/Control-Applicative.htm... _______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners