When using this hack, I prefer `fromInteger x = repeat (fromInteger x)`. That way, you get

> 2 * [1,2,3]

[2,4,6]

It's cute for playing around, but the Num instance for lists is somewhat discouraged in "real" code.

-- Dan Burton

On Fri, Dec 13, 2013 at 10:15 AM, Dario Bertini <berdario@gmail.com> wrote:

I guess you meant

(*) = zipWith (*)
?

Dumb question: would it be fine to use such an instance in real world
application code (in contrast with library code... I guess it would be
frowned upon there?)

are there any "dangers"... weird interactions?

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