[Haskell-cafe] A small oversight

Matthias Görgens matthias.goergens at googlemail.com
Sat Feb 20 05:56:46 EST 2010

> Also, constructions like
>  sortBy (compare `on` foo)
> must surely be very common.

Just as a data point: I use constructions like the above very often.
(Perhaps someone more enlightened than me can point out the connection
to arrows?)

Data.Function.on is surprisingly useful in some other contexts, too.


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