When comparing Functional Programming in Scala vs exercism.org, the Slant community recommends exercism.org for most people. In the question“What are the best resources to learn Scala?” exercism.org is ranked 1st while Functional Programming in Scala is ranked 5th. The most important reason people chose exercism.org is:
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.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Creative, fun exercises
"Functional Programming in Scala" offers no shortage of exercises. Throughout the book, exercises and examples are plentiful to help the reader put what they're learning into practice for a better understanding.
Pro Does an excellent job of teaching functional programming
"Functional Programming in Scala" focuses on building a strong foundation in Functional Programming(FP). It fully explains FP concepts, including the "why" behind everything discussed.
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 Not for beginners
The material gets advanced pretty quickly. The material in the book is more effective if you already have an introduction to category theory and combinatorial analysis.
Con Only uses Scala as a medium to teach functional programming
Rather than focusing on teaching the language (such as the syntax), "Functional Programming in Scala" only uses Scala as the medium for teaching functional programming. This means the reader needs to already have some experience with Scala.
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.