Open HaQadosch opened 9 years ago
http://adit.io/posts/2013-04-17-functors,_applicatives,_and_monads_in_pictures.html
Try using a Maybe data type.
This is regarding pbm number 2
http://adit.io/posts/2013-04-17-functors,_applicatives,_and_monads_in_pictures.html
Try using a Maybe data type.