Hi, maximumBy :: Foldable t => (a -> a -> Ordering) -> t a -> a its in the Data.List May 22, 2020 8:33:33 PM CEST "Daniel van de Ghinste (Lord_Luvat)" <danielvandeghinste@gmail.com> wrote:Hi, Maybe I’m on a different version, but I don’t see a function called maximumBy in my base Prelude. Can you give us a type signature for the function? If you’re not sure how to do that just type: Prelude> :t maximumBy In your ghci interpreter and it should return the type signature of whatever you have after ‘:t ‘ (this works for compound expressions too if you put them in brackets) Perhaps maximumBy is what you’re meant to call your rewrite of the existing function I see called ‘maximum’ (seems to do the same thing). Let me know if thats the case and I can explain how it works. Best regards, Daniel van de Ghinste On 22 May 2020, at 20:20, Alexander Chen <alexander@chenjia.nl> wrote: Hi, I want to re-write a function maximumBy (its an assignment). However, I don't get how it works.
maximumBy compare [1,53,9001, 10] 9001
but what does it actually do to get there? thanks in advance. best, _______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners