Re: [Haskell-beginners] "Shortcut" for f (g x) (g x)

You can use `liftM2 f g g` For the example you mentioned, there's also compare `on` snd or comparing snd with the proper imports (Data.Ord, Data.Function) On Mon, Dec 4, 2017 at 8:31 AM, Baa 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...

=== Best regards, Paul _______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

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