3 Jan
2019
3 Jan
'19
10:33 a.m.
Ivan Lazar Miljenovic <ivan.miljenovic@gmail.com> writes:
That's because you still have "Just a" values. Try mapMaybe from Data.Maybe instead.
Sounds like a job for catMaybes from Data.Maybe catMaybes [Nothing, Just "foo"] ==> ["foo"] -- Jón Fairbairn Jon.Fairbairn@cl.cam.ac.uk