Top 780 functional-programming open source projects

High Performance Streams Based on Coroutine TS ⚡

Plasma Programming Language

Collection of Swift playgrounds used in my posts: From functional aspects of Swift to C interoperability.

Pattern Matching for Javascript

ZIO wrapper for Akka Cluster

[a]synchronous functional programming

The Cycle.js Chinese documentation website.

Type-safe, ergonomic, polymorphic optics for TypeScript

Compile-time checked Unions of different types for Domain Modeling [STABLE]

Language Design Community for the EVM: Intro and Resources

Make your functions return something meaningful, typed, and safe!

dApps in Elm

A naive approach to functional programming using TypeScript

The Grain compiler toolchain and CLI. Home of the modern web staple. 🌾

Probabilistic deep learning for data streams.

⚡️ codezilla ⚡️ One giant 🦖 collection of algorithms & design patterns.

🐆 An immutable list with unmatched performance and a comprehensive functional API.

Data grids in functional style with ReactJS

Lua Fun is a high-performance functional programming library for Lua designed with LuaJIT's trace compiler in mind.

Patoline typesetting system

Stream API from Java 8 rewritten on iterators for Java 7 and below

A Python stream processing engine modeled after Yahoo! Pipes

GRIN backend for GHC

Scala and Akka for kids. A Functional Programming approach for the well known LOGO.

🧙 ‎‎ A 3D game about functional programming patterns. Uses PureScript Native, C++, and Panda3D.

Boiler plate framework to use Spark and ZIO together.

Scala Test-State.

Compose multiple setState or getDerivedStateFromProps updaters in React

Aardvark is an open-source platform for visual computing, real-time graphics and visualization. This repository is the basis for most platform libraries and provides basic functionality such as data-structures, math and much more.

A curated list of awesome things related to functional programming in Python.

A functional and reactive JavaScript framework for predictable code

Pointless: a scripting language for learning and fun

thoughts on programming

Classic and Arrowized Functional Reactive Programming, Reactive Programming, and Stream programming, all via Monadic Stream Functions

Write small programs (eg -algorithms) in a functional way.

Typesafe, purely functional Computational Intelligence

A modern proof language

🐦 Some combinators

🐏 Debugging for Ramda.

Simple tuples to use with RxJava [STABLE]

Functional stuff for Python

Functional 3D Webgl Editor

DDD sample implementation by Scala.

Easy way to create Free Monad using Scala macros with first-class Intellij support.

constexpr C++17 library for simplifying higher order functions in application code

Facebook's React on Scala.JS

Javascript Generalized Parser Combinators

Testing framework for Purescript

A suite of composable utility components to manipulate collections.

🍱 Y Combinator for Non-programmers: A Wild Introduction to Computer Science

A powerful caching library for Python, with TTL support and multiple algorithm options.

FsConfig is a F# library for reading configuration data from environment variables and AppSettings with type safety.

Scala FP configuration library with a focus on runtime clarity

Functional programming in Java

⛪️ Church Encoding in JS

⚡ Pattern Matching in Typescript

Functional style JSON parsing in Kotlin

An STM implementation for Cats Effect

A purely functional library to build distributed and event-driven systems

Event sourcing for Akka Streams