[Haskell-cafe] flip1 through flip9, useful?
christian at ponies.io
Tue Jan 14 23:30:15 UTC 2014
On Tue, Jan 14, 2014 at 04:57:14PM +1000, Tony Morris wrote:
> Why not generalise to any functor?
> let flip f a = fmap ($a) f
I didn't think of that, I suppose.
Now that I do, it seems to be a tradeoff between (arguably) less immediately
obvious type signatures and something.
I can't actually think of what that something is yet. Can you think of a real
world use for a functor flip where normal flip wouldn't do?
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