When comparing Learn You a Haskell for Great Good! vs exercism.org, the Slant community recommends Learn You a Haskell for Great Good! for most people. In the question“What are the best resources for a intermediate programmer to learn Haskell?” Learn You a Haskell for Great Good! is ranked 2nd while exercism.org is ranked 3rd.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro It has a sense of humor
Pro It walks you through new features in an order that doesn't overwhelm you
Pro Human review and feedback
Rather than merely test for code correctness, Exercism uses peer review to improve general programming techniques. Users are encouraged to comment on others' solutions, and refine their own based on feedback.
Pro Practice with production tools
Unlike many code practice websites, Exercism requires the user to develop and test entirely offline, submitting only the finished code. This promotes familiarity with essential tools and workflow, not just the bare language.
Cons
Con lack of exercises
To really learn Haskell, it helps tremendously to work through well-designed exercises.
Con Custom commandline client
Exercism requires using a CLI utility to fetch and submit exercises. This is inconvenient compared to web-only alternatives, and poses an additional barrier to entry for some users.