# kowainik/learn4haskell

👩‍🏫 👨‍🏫 Learn Haskell basics in 4 pull requests

Repository: https://github.com/kowainik/learn4haskell
Canonical: https://ross.abutalabs.com/products/learn4haskell
Homepage: https://kowainik.github.io/projects/learn4haskell
Language: Haskell
License: MPL-2.0
License Family: copyleft
Topics: hacktoberfest2020, haskell, learning-by-doing, hacktoberfest, hacktoberfest2021
Last push: 2026-08-03T20:22:18+00:00

## Health v2 (maintenance only)
Score: 75/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 95, release rhythm 35, longevity 100
- inputs: {"age_days": 2167, "days_push": 30, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1037, forks 853 (observed 2026-08-28T04:03:19.546278+00:00)

## What it is
Learn4Haskell is a GitHub-based course that teaches Haskell functional programming basics through four chapters completed as pull requests. Each module contains educational material, examples, and exercises, with maintainers providing feedback on submitted solutions.

## Use cases
- learn haskell basics
- learn functional programming from scratch
- practice haskell with exercises and feedback
- contribute to open source while learning a language
- find a beginner-friendly haskell tutorial
- get code review on my haskell exercises

## When to choose
- you are a beginner with no prior functional programming experience
- you want hands-on learning with human feedback via pull requests
- you want to learn inside your editor without extra tooling

## When to avoid
- you need advanced or production-level Haskell topics
- you prefer self-paced courses without reviewer interaction
- you need a reference or documentation rather than a guided course

## Facets
- artifact type: learning-resource
- maturity: active
- function: developer-tools
- domain: education, programming-languages, tutorials
- platform: cross-platform
- tags: haskell, functional-programming, course, hacktoberfest, learning-by-doing, pull-requests

## Member repositories
- kowainik/learn4haskell (main) score 75

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:19.546278+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:04:23.843307+00:00, confidence not recorded.
  - readme: https://github.com/kowainik/learn4haskell (fetched 2026-08-28T04:03:19.546278+00:00, sha 2a0329674244)
  - homepage: https://kowainik.github.io/projects/learn4haskell (fetched 2026-08-29T13:05:13.724249+00:00, sha 00064adce5ac)
- Data as of 2026-08-30T08:39:29.467469+00:00.