Functional programming

In computer science, functional programming is a programming paradigm where programs are constructed by applying and composing functions. It is a declarative programming paradigm in which function definitions are trees of expressions that map values to other values, rather than a sequence of imperative statements which update the running state of the program.

GitHub: https://github.com/topics/functional-programming
Wikipedia: https://en.wikipedia.org/wiki/Functional_programming
Related Topics: oop, declarative-programming, procedural-programming, event-driven-programming,
Last updated: 2026-06-18 00:08:13 UTC
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https://github.com/ariebovenberg/calls

Simple, typed, composable tools for callables.

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https://github.com/sgb-io/functional-algos

A utility library containing algorithm implementations, using functional TypeScript.

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https://github.com/12joan/rubio

Write pure, functional code that encapsulates side effects using the IO monad (and friends) in Ruby

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https://github.com/ace411/bingo-functional-repl

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https://github.com/draekien-industries/waystone-dotnet

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ResultType implementation in C#

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https://github.com/duboviy/funpy

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函数式编程学习，包含实现代码和大量实践应用demo

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Maybe, Option and Result monads for PHP.

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Explicit concurrency for intelligible parallel programing.

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https://github.com/matthewsecrist/fxnk

A functional programming library for Elixir inspired by Ramda.

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https://github.com/luhring/funky

A Go (golang) linter that finds mutations.

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https://github.com/lysxia/test-fun

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Advent of Code 2023

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https://github.com/jabez007/functionalcsharp

A library of static classes, extension methods, and classes that apply functional techniques to C#.

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https://github.com/loipesmas/vesmor

a fantasy video game console with vector graphics and a declarative statically typed functional programming language

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Solana D'App for SOMOS* digital record store

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https://github.com/drapegnik/rsschool-fp

:zap: Functional Programming Course

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150+ OCaml implementations: data structures, algorithms, interpreters, theorem provers, neural networks, distributed systems, and more

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https://github.com/guillaumearm/redux-fun

:wrench: - Redux functional programming utilities

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https://github.com/blakek/compose

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Índice de repositorios.

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https://github.com/timdeputter/FitEx

FitEx is a Macro-Module which provides a bit of sugar for function definitions.

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https://github.com/deanrad/antares-ts

Antares is an Architecture for making real-time applications with confidence.

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Advent of Code 2020 in D Programming Language

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Awesome tool for FP JS. Logging of the input and output arguments of the function on each call.

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https://github.com/mmzk1526/hrolog

A Prolog-like language

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https://github.com/elixircl/kombucha

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https://github.com/muhammadkashif20/calculator-project

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https://github.com/blakek/curry

🍛 Simple curry functions

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https://github.com/ilankri/flap

A toy compiler from a functional programming language to MIPS assembly and Java bytecode (mirrored from https://gitlab.com/ilankri/flap)

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https://github.com/santanusinha/hystrix-function-wrapper

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https://github.com/bryanesmith/fp-in-scala-v2

Answers to exercises in Functional Programming in Scala.

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https://github.com/wanderhuang/base-funcs

🐳一些前端开发通用的工具函数。函数式、文档化、测试覆盖、工程化👊

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https://github.com/noyzys/bukkit-vavr-in-action

⚡ vʌvr in action playground

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https://github.com/alvaro-cuesta/lambda-musika

A JavaScript DAW that emphasizes functions as its core building block. In practice, a realtime audio scripting language and batteries-included DSP library, running on the web.

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https://github.com/psychedelicshayna/language-learning

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https://github.com/jmargenberg/monok

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https://github.com/sykoram/clj-calculator

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https://github.com/novid/guide.elm-lang.ir

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https://github.com/dev-cetera/df_safer_dart

A package inspired by Rust and functional programming, designed to bring structure, clarity, and safety to your Dart applications.

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https://github.com/federicobruzzone/setup-ocaml-project-without-dune

This repository provides a basic setup for an OCaml project without using Dune as the build system. It aims to provide a simple and straightforward structure for your OCaml project, allowing you to focus on writing code without the complexities of a build system.

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https://github.com/goblinfactory/appendonly

High speed C# immutable append only list.

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ActionScript collection library with modern functionality

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https://github.com/hiphish/functional-fizzbuzz

(Mirror) An exercise in Python, functional programming and property testing

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https://github.com/askewcow/haskell-by-doing

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Hello World in Isabelle, compiled to Haskell

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https://github.com/giu7d/doka-lang

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https://github.com/mmnaseri/tuples4j

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https://github.com/sdaves/simplemonads

Easy to use monads (containers), with pattern matching, that improve the quality of your python code. Use Just to end checking for None, Success to end unhandled exceptions, Future for async, and Reader for dependencies.

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