This led me to look up the definition of on <http://hackage.haskell.org/package/base-4.10.0.0/docs/src/Data.Function.html#on> and discover that punctuation can be used as a variable name for an operator! On Mon, Dec 4, 2017 at 11:51 AM, Baa <aquagnu@gmail.com> wrote:
Oh, yes! Exactly, thanks to all!!
Hi!
I think you're looking for Data.Function.on: http://hackage.haskell.org/package/base-4.10.0.0/docs/ Data-Function.html#v:on
On 04/12/2017, Baa <aquagnu@gmail.com> wrote:
Hello, All!
Does Haskell have some "short-form" for such call: `f (g x) (g x)`, for example:
compare (snd x) (snd x)
Looks like combinatory logic or `ap` but not exactly...
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