Comments on: Any Haskell puzzlers?

By: Ketil

Ketil — Mon, 09 Aug 2010 09:07:31 +0000

Intrigued by the puzzles, I had to look briefly at the video. It is interesting that the conclusion after the first puzzle http://www.youtube.com/watch?v=V1vQf4qyMXg, @09:34 is that “Strange and terrible methods lurk in libraries”. Huge libraries are a main selling point of Java, especially vs. Haskell, but sometimes there’s something to be said for the DYI approach also – something that “clearly works, as opposed to merely works”.

By: Axio

Axio — Thu, 05 Aug 2010 05:50:33 +0000

f (n+1) = n
main = do
  putStrLn . show $ f 1
  putStrLn . show $ f 0

By: Magnus

Magnus — Tue, 03 Aug 2010 07:56:58 +0000

@solrize, hardly the kind of code you’re likely to find in any real software project out there though, is it?

By: solrize

solrize — Tue, 03 Aug 2010 03:29:58 +0000

let 1 = 2 in print 1

By: Magnus

Magnus — Mon, 02 Aug 2010 10:46:35 +0000

Dan, a nice little example of the power of irrefutable (lazy) patterns.

By: Dan Doel

Dan Doel — Mon, 02 Aug 2010 09:56:09 +0000

What are the values of the following expressions?

let ( (w, x), (y, z)) = ((1, 2),    (3, 4)) in y

let ( (w, x), (y, z)) = (undefined, (3, 4)) in y

let (~(w, x), (y, z)) = (undefined, (3, 4)) in y