[Haskell-cafe] let vs. where

Dan Piponi dpiponi at gmail.com
Tue Nov 13 16:51:13 EST 2007

On Nov 13, 2007 1:24 PM, Ryan Ingram <ryani.spam at gmail.com> wrote:
> I tend to prefer where, but I think that guards & function declarations are
> more readable than giant if-thens and case constructs.

Up until yesterday I had presumed that guards only applied to
functions. But I was poking about in the Random module and discovered
that you can write things like

a | x > 1 = 1
  | x < -1 = -1
  | otherwise = x

where 'a' clearly isn't a function. Seems like a nice readable format
to use. Probably everyone except me already knew this already though.

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