Show HN: FP-pack – Functional pipelines in TypeScript without monads
Hacker News (score: 11)
Found: January 03, 2026
ID: 2886
Description
Code Quality
Show HN: FP-pack – Functional pipelines in TypeScript without monads
Hi HN,
I built fp-pack, a small TypeScript functional utility library focused on pipe-first composition.
The goal is to keep pipelines simple and readable, while still supporting early exits and side effects — without introducing monads like Option or Either.
Most code uses plain pipe/pipeAsync. For the few cases that need early termination, fp-pack provides a SideEffect-based pipeline that short-circuits safely.
I also wrote an “AI agent skills” document to help LLMs generate consistent fp-pack-style code.
Feedback, criticism, or questions are very welcome.
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