[reactive] First draft of reactive-tetris

[Creighton Hogg]

On Tue, Nov 18, 2008 at 12:15 PM, Conal Elliott <conal at conal.net> wrote:

> Also, a less forgetful version of subs might be useful:
>
>      withSubs xs e :: [a] -> Event b -> Event (b,a)
>
> and then
>
>     subs xs e  = snd <$> withSubs xs e
>
> or, if you like,
>
>     subs = (fmap.fmap.fmap) snd withSubs
>
> Btw, you can read the three fmaps directly from the signature of withSubs
> (two arrows plus one Event on the way to the pair).
>
>   - Conal


That's a cute trick with the number of fmap's required.  Never thought of it
that way.

Also, I'd like to apologize for not mentioning quicksilver from #haskell in
my last e-mail.  An honest slip-up, but an inappropriate one.
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