I would prefer that partial functions return 'Maybe' - then I can pick whether or not I want 'Prelude.maybe' behavior or 'Data.Maybe.fromMaybe' behavior. I would prefer seeing findMax :: Map k a -> Maybe (k, a).
It's also easier to read the function signature and know what is going to happen, rather than giving the function three parameters.
Sure, this is reasonable too. [ ross ]
Proposal: deprecate and then remove find, findIndex, findMin, findMax, deleteFindMin and deleteFindMax.
List.find? No thanks, I use that all the time. As far as findMin, toAscList works just as well, so fine, let's kill it. For findMax, toDescList, which I thought was patched in a year ago, still doesn't appear in the latest version of collections, so as far as I know there's no alternative for it. As far as findIndex, are there any known uses for indexed Maps? I haven't used it but maybe there's some important use I don't know about.