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Re:“Mostly functional” programming does not work by chongli on Sunday April 27, 2014 @08:31AM (#7654822)
and in regular Haskell you can get something like polymorphism (implemented under the hood with actual polymorphism) with forall-qualified datatypes.

Huh? Haskell's polymorphism capabilities are more expressive and more expansive than most other languages'. Higher-kinded polymorphism, a mainstay in Haskell, is pretty rare to find almost anywhere else.

Re:“Mostly functional” programming does not work by cynicalkane on Sunday April 27, 2014 @09:38PM (#7657794)
I meant dynamic polymorphism, which is different from parametric polymorphism.