Reducer typeclass
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- Dominant language
- Scala
- Stars
- 5.5k
- Forks
- 1.2k
- Avg merge
- 2d 10h
- Merged PRs (30d)
- 5
Description
Reducers model append and prepend operations on Monoidal containers.
Described on slide 9 of this talk by Kmett
See also haskell lib: https://hackage.haskell.org/package/monoids-0.3.2/docs/Data-Monoid-Reducer.html#t:Reducer
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading slide 9 of Kmett's Introduction to Monoids talk and the linked Data-Monoid-Reducer documentation to understand the intended abstraction. Then inspect Cats' existing typeclass conventions and discuss the API and scope with maintainers; done requires an agreed design and corresponding implementation and tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- scala
- Domain
- backend
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100