Key Facts
- ✓ fp-pack is a small TypeScript functional utility library.
- ✓ The library focuses on pipe-first composition.
- ✓ It supports early exits and side effects without using monads like Option or Either.
- ✓ Most code uses plain pipe/pipeAsync.
- ✓ An 'AI agent skills' document exists to help LLMs generate consistent fp-pack-style code.
Quick Summary
A new TypeScript utility library named fp-pack has been released, offering a unique approach to functional programming. The library prioritizes pipe-first composition to enhance code readability and simplicity.
Key features include support for early exits and side effects without the overhead of monads. The project also provides resources for AI integration, specifically targeting code generation consistency.
Introducing fp-pack: Simplicity in Functional Programming
The fp-pack library enters the TypeScript ecosystem with a specific goal: to facilitate functional pipelines without the complexity often associated with monadic structures. The creator designed it to be a small, focused utility library.
By avoiding monads like Option or Either, the library aims to remain accessible to developers who prefer straightforward, readable code. The core philosophy is to maintain simplicity while handling complex functional requirements.
"The goal is to keep pipelines simple and readable, while still supporting early exits and side effects — without introducing monads like Option or Either."
— fp-pack Creator
Core Mechanics: Pipe-First Composition
The library relies heavily on pipe-first composition. Most code written with fp-pack utilizes the standard pipe and pipeAsync functions. This approach allows for a linear flow of data through various transformations.
However, the library acknowledges that not all pipelines are linear. To handle non-linear flows, it introduces specific mechanisms for early termination.
Handling Early Exits
For cases where a pipeline needs to terminate early, fp-pack provides a SideEffect-based pipeline. This mechanism allows the code to short-circuit safely, ensuring that operations stop immediately when a specific condition is met without breaking the overall functional structure.
AI Integration and Developer Resources
Beyond the library itself, the creator has expanded the project's scope to include support for Artificial Intelligence. An 'AI agent skills' document has been authored specifically for this purpose.
This document serves as a guide for Large Language Models (LLMs). Its primary function is to help these models generate code that is consistent with the fp-pack style, potentially streamlining the development process for teams utilizing AI coding assistants.
Community Engagement and Feedback
The release of fp-pack is accompanied by an open invitation for community interaction. The creator is actively seeking input from the developer community to refine and improve the library.
Specifically, the project welcomes feedback, criticism, and questions. This collaborative approach suggests a commitment to iterative improvement based on real-world usage and user experience.
"Feedback, criticism, or questions are very welcome."
— fp-pack Creator
