You can also do equality tests on type values, which means in your first two cases you can use an if statement.
if someValue == A then stuff1 else stuff2 This only works if your type values aren't storing any data. On Fri, Dec 9, 2016 at 7:25 AM, Petr Huřťák <[email protected]> wrote: > Hi, > > I would like hear some discussion on grouping of branches in `case of` > statement . Currently it is not possible to use one branch for multiple > conditions. > > Something along these lines: > > case someTypeValue of > A -> > -- code > > B -> > C -> > D -> > -- different code > > > Current alternative is this > > case someTypeValue of > let > stuff2 = > -- code > in > A -> > -- different code > > B -> > stuff2 > > C -> > stuff2 > > D -> > stuff2 > > > Which is unnecessarily verbose and harder to read. > > One question is how this would work when there in cases where matched > patterns have some values attached to them > > case someTypeValue of > A -> > -- stuff1 > > > B _ -> > C _ _ -> > D _ _ _ -> > -- stuff2 > > How is this handled in other languages like OCaml or Haskell? > > NOTE: moved from https://groups.google.com/forum/#!topic/elm-dev/ > DtUT2ieYTDo > > -- > You received this message because you are subscribed to the Google Groups > "Elm Discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Elm Discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
