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Try Haskell

by boryas on 2/23/10, 2:24 AM with 56 comments

• by munctional on 2/23/10, 3:47 AM

  Does anyone have any suggestions for beginner Haskell projects?

  I've read through some Haskell material before and tried following tutorials, but I always end up dropping it because I can't think of anything for which I would use it.

  I have no problem with functional and functional-esque programming (Erlang, Common Lisp, etc.), but I just can't come up with anything to do in Haskell. :(

  EDIT:

  Thanks for the great suggestions, everyone! I think I'll do some crpyo-based maths work in Haskell since that is what holds my interest at the moment. :-)

• by gphil on 2/23/10, 3:09 AM

  Cool! I really like what the Haskell community is doing lately to reach out to new users. As someone who didn't know anything about functional programming a year ago, I can say that I've learned a lot just by messing around with it a little bit.

• by Ezra on 2/23/10, 3:20 AM

  I applaud the effort, but this is far from complete. As far as I can tell, you can only do standalone expressions, to the exclusion of anything interesting.

      Type Haskell expressions in here.
      > let x = 10
      not an expression: `let x = 10'
  

  I understand that mueval has this limitation too? It's more defensible in the irc context that "state" would be disallowed. Here, it's just crippling.

  I don't need the mtl stuff, but being able to define a basic function would be nice!

  http://codepad.org/ will run full programs for you ... I guess that'll continue to be my tool of choice for online Haskell prototyping.

  Still, this project does seem promising.

• by nym on 2/23/10, 3:09 AM

  Nice, but needs more steps... get me to the point where I understand what a Monad is, because I really want to know!

• by simplify on 2/23/10, 3:18 AM

  The text area scrolls to the very top every time I type, not letting me see what I type [Safari 4.0.3]

  Pretty cool app. A tutorial to go along with it would do wonders.

• by jashkenas on 2/23/10, 5:42 AM

  Ah, but can it reverse an infinite list?

      > reverse [1..]
  
      Time limit exceeded

• by baguasquirrel on 2/23/10, 5:32 AM

  Pretty nifty. Needs import though, so you can do stuff like:

  :m + Data.List intersperse '.' "hello"

  And anything else you'd need if you want to use stuff other than just the Prelude.

• by cool-RR on 2/23/10, 12:30 PM

  Please add help for something beyond "beginners".

• by binarycheese on 2/23/10, 1:51 PM

  Very impressive

• by baguasquirrel on 2/23/10, 5:32 AM

  Pretty nifty. Needs import though, so you can do stuff like:

  :m + Data.List intersperse '.' "hello"

  And anything else you'd need if you want to use stuff other than just the Prelude.

• by baguasquirrel on 2/23/10, 5:32 AM

  Pretty nifty. Needs import though, so you can do stuff like:

  :m + Data.List intersperse '.' "hello"

  And anything else you'd need if you want to use stuff other than just the Prelude.

• by baguasquirrel on 2/23/10, 5:34 AM

  Pretty nifty. Needs import though, so you can do stuff like:

  :m + Data.List intersperse '.' "hello"

  And anything else you'd need if you want to use stuff other than just the Prelude.