fp-pack

A functional toolkit focused on type-safe pipelines, not FP dogma, for JavaScript and TypeScript.

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2Distinct people

2Mentions

0Explicit recommenders

112GitHub stars

REPOSITORY AT A GLANCE

What to know before exploring

What it is

A functional toolkit focused on type-safe pipelines, not FP dogma, for JavaScript and TypeScript.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

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Also in these discussions

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This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by hour2 dated mentions

Observed mentions: 2026-01-03 15:00:23 UTC to 2026-01-03 19:00:51 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges

UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
Jan 3, 15:00	2026-01-03 15:00:00 UTC	2026-01-03 16:00:00 UTC	1	1	0
Jan 3, 16:00	2026-01-03 16:00:00 UTC	2026-01-03 17:00:00 UTC	0	0	0
Jan 3, 17:00	2026-01-03 17:00:00 UTC	2026-01-03 18:00:00 UTC	0	0	0
Jan 3, 18:00	2026-01-03 18:00:00 UTC	2026-01-03 19:00:00 UTC	0	0	0
Jan 3, 19:00	2026-01-03 19:00:00 UTC	2026-01-03 20:00:00 UTC	1	0	1

What Hacker News says

2 sources

eterps·Jan 3, 2026

While I like the concept, the side-effect pattern might be difficult for the average developer to understand (without fp-pack knowledge) in a shared codebase: https://github.com/superlucky84/fp-pack?tab=readme-ov-file#s... Still, this approach is very useful for most business logic, too bad most programming languages don't provide a nice syntax for this.

In Show HN: FP-pack – Functional pipelines in TypeScript without monads

superlucky84·Jan 3, 2026Submission

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.

14 points · Open discussion