functional

Dataflow programming language where you write a program as a message-passing graph and everything runs in parallel by default. It has strong static types, compiles to machine code, interoperates with Go, and supports visual programming with a node editor. Extremely LLM-friendly too.

🧬 Light, fast, reactive UI library

A result abstraction that can be mapped to HTTP response codes if needed.

ESLint rules to disable mutation and promote fp in JavaScript and TypeScript.

HTTP/1.1, HTTP/2, Websocket client (and more) for Erlang/OTP.

The modelling for success/failure of operations in Kotlin and KMM (Kotlin Multiplatform Mobile)

A tiny (~1kB minzipped) and extremely fast library for creating reactive observables via functions.

C# discriminated union source generator

Throw in the towel.

Essential building-blocks for functional & safe TypeScript code

Another Haskell web framework for rapid development

A functional-first toolkit for building brilliant ASP.NET Core applications using F#.

WebSharper - Full-stack, functional, reactive web apps and microservices in F# and C#

Functional programming in Dart and Flutter. All the main functional programming types and patterns fully documented, tested, and with examples.

A parser combinator library for Zig

Improved and configurable drop-in replacement to std::function that supports move only types, multiple overloads and more

Pampy.js: Pattern Matching for JavaScript

Elementary is a JavaScript library for digital audio signal processing.

Higher-order functions for c++

Extensions to the Kotlin Flow library.

Functional API for Microsoft Orleans http://orleanscontrib.github.io/Orleankka

⚡ Type-safe data transformer for JavaScript, TypeScript & Node.js.