
2 Mar
2017
2 Mar
'17
5:35 p.m.
On Thu, Mar 02, 2017 at 05:19:26PM +0000, Oliver Charles wrote:
Personally, I think it would be a shame to lose foldMap on EIther. I frequently foldMap over Maybe values (where mempty is suitable in case of "failure"), and I can certainly see myself doing the same thing with Either.
I am not trying to be polemic, just to see where the community stands: regarding Either/Maybe: do you have use cases for length (sum) too?