marpple/FxTS

Health v2 · maintenance only

Adoption not part of the score

1168 stars · 86 forks observed · 2026-10-22

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

FxTS is a functional programming library for TypeScript and JavaScript built on Iterable/AsyncIterable protocols. It provides lazy evaluation, composable pipe-based data transformation, and concurrency control for async operations with strong type inference.

Use cases

• process large or infinite sequences lazily without loading everything into memory
• compose map/filter/reduce pipelines with pipe and strong type inference
• control concurrency of async requests with backpressure
• write declarative functional code in TypeScript
• terminate async work early with take over AsyncIterables

When to choose

• you want lazy evaluation and AsyncIterable pipelines beyond what lodash or native iterator helpers offer
• you need curried, data-last function composition with excellent TypeScript inference
• you need to throttle concurrent async requests with backpressure

When to avoid

• you need a batteries-included utility belt with deep object manipulation like lodash
• your project cannot enable strict TypeScript compiler options
• you target environments without ES2018+ support and cannot use polyfills

Facets

library · maturity active

concurrency serialization web-development frontend backend developer-tools browser cross-platform functional-programming lazy-evaluation iterables async-iterables pipe type-inference data-last-composition nodejs typescript

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