cats
https://github.com/typelevel/cats
Scala
Lightweight, modular, and extensible library for functional programming.
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- Issues
- Add a combinator like partitionEither for FunctorFilter
- Optimize traverseWithChain for StackSafeMonad(s)
- Proposal: ParallelLike machinery to open implicit summoning
- Cats 3 Roadmap
- Clean out warnings from Dotty
- Serialization of Free Monads/Applicatives ?
- Applicative functions like map2, product, etc are defined in terms of flatMap
- WIP: Selective
- Inconsistent `ApplicativeError` behaviour for `OptionT[F[_], A]` / `EitherT[F[_], A, B]` if `F[_]` also has an `ApplicativeError` instance
- cats foldable syntax unnecessarity has Foldable implicit in its signature
- Docs
- Scala not yet supported