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: 2026-03-24 00:11:59 UTC
- JSON Representation
https://github.com/systemfsoftware/essentials
Essential TypeScript libraries and utilities for building production-ready AI SaaS applications
ai apify aws cloud-native developer-tools effect-ts functional-programming monorepo neon-database nodejs pnpm saas serverless typescript utilities
Last synced: 13 Apr 2025
https://github.com/theow03/hazelc
LLVM Compiler for Hazel; a declarative, Functional Programming Language
compilers functional-programming llvm
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https://github.com/guillaumearm/redux-fun
:wrench: - Redux functional programming utilities
fp functional-programming handler middleware reducer redux selector updater
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https://github.com/thesephist/ittr
Small library of iterator-related utility functions for JavaScript
functional-programming iterator nodejs
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https://github.com/phenax/ts-types-runtime
A runtime for typescript's type system that turns it into a general purpose, purely functional programming language with effects!
effects functional-programming type-level-programming typescript
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https://github.com/aganglada/reswitcher
🍭 Functional switch case for redux reducers
functional-programming javascript reducer redux switch-case
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https://github.com/jlengrand/functional-programming-scala
Exercises from the Functional Programming in Scala book
educational functional functional-programming scala
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Z80-based system simulator written in scala
functional-programming immutability scala simulator z80 z80-assembler z80-emulator
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Finds the best (cheapest) route from a starting point towards a destination
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https://github.com/leostera/alonzo.js
Minimalistic Lambda Calculus Built with const and arrow functions
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https://github.com/alanrsoares/reprocessing-snake
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https://github.com/futtetennista/introductiontofunctionalprogramming
Solutions for the exercises in the "Introduction to Functional Programming" by Richard Bird and Philip Wadler
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https://github.com/aartaka/lamber
A functional scripting language compiling to pure Lambda Calculus
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https://github.com/callmesalmon/kite
Source code for the "Kite" programming language. Contributions are always welcome! (WIP)
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https://github.com/coderynx/functional
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A command line tool that corrupt the binary data of an image file to create a glitch
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https://github.com/fabasoad/setup-cloe-action
This GitHub action installs Cloe
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node based csv to json - adding functional style with es6/es7 usage
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https://github.com/emphori/compose
A featherweight Promise composition and error handling library for JavaScript
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https://github.com/francomelandri/lib-tiny-fp
Tiny Functional Programming library for C++
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https://github.com/uchamod/flutter_fitness_tracker_application_ui
Welcome to the Fitness Tracker app! This Flutter application is designed to help you keep track of your fitness activities with a creative and intuitive user interface. The app is fully responsive and works seamlessly on mobile, web, and tablet devices, ensuring you have access to your fitness data anytime, anywhere.
dart flchart flutter functional-programming responsive ui-design
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https://github.com/michalspano/haskeww
λ Haskell, but no Ls. You call Haskell a toy academia language – I'll show you *real* software in it.
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https://github.com/varun93/functional-pogramming-scala
Solutions to Functional Programming in Scala
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https://github.com/pomadchin/tagless-derivation
This project is an experimental playground to work on the cats-tagless macros migration to Scala 3.
functional-programming scala tagless
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https://github.com/zio-archive/zio-distributed
The future home of ZIO Distributed!
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https://github.com/andriystr/monapy
Python Library for declarative programming.
declarative-programming functional-programming library
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https://github.com/gurbaaz27/cs350a-homework-exercises
functional, lambda-calculus and object-oriented programming homework assignments
functional-programming gosu gosu-gem haskell higher-order-functions lambda-functions lazy-evaluation object-oriented-programming oops ruby untyped-lambda-calculus
Last synced: 03 Mar 2025
https://github.com/rizkimufrizal/docker-spring-cloud-gateway
This project was created to learn reactive programming, functional programming and custom api gateway with Spring Cloud Gateway
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https://github.com/sopherapps/funml
A collection of utilities to help write python as though it were an ML-kind of functional language like OCaml
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https://github.com/shuvo18103107/diceroll.github.io
This is a kind of fun project made completely by javascript. Enjoy the game the link is given below.
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https://github.com/unisay/moki
Moki is a tool that provides and manages test services like mock http server, database, FS folder, etc.
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https://github.com/adamouization/lambda-calculus-proofs
Short proofs about using the Lambda-Calculus as a Programming Language (2017)
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https://github.com/imrafaelmerino/jio
Jio is a powerful Java library designed to simplify and enhance input/output operations by leveraging the power of expressions and functions
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https://github.com/matejamaric/tinyc-in-go
A Go implementation of Marc Feeley's TinyC
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https://github.com/tinyj/tinyj-lazy
A thread and exception safe implementation of lazy (aka on-demand) value initialization.
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https://github.com/markomitranic/ts-pipe
Simplify data transformations and debugging - ts-pipe is a type-safe implementation of a pipeline in TS, inspired by good stdlib design of Elixir.
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https://github.com/sergiocampbell/video-chat
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https://github.com/namoshizun/goodjson
Functional validators to check anything about your JSON with ease.
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https://github.com/rurumimic/haskell
functional programming language
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https://github.com/weaming/math-fold
Bring fold in functional programming to CLI.
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https://github.com/callius/target-kt
Target - Functional domain modeling in Kotlin
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👽 Conway's Game of Life implemented in Scala 3 with Airstream and Scala.js
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https://github.com/adhityaramadhanus/gope
gope (go efpe), functional programming helper in go (for learning purpose)
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https://github.com/rxtoolkit/ws
🔌 RxJS operators for working with WebSockets
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https://github.com/rxtoolkit/s3
🪣 RXJS operators for working with AWS S3
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https://github.com/sandromaglione/nextjs_search_view_pagination
NextJs application where you can search and view a list of users, implemented with pagination
eslint fp-ts functional functional-programming io-ts next pagination prettier search tailwindcss typescript users
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https://github.com/vitorluizc/functional-resources
Some pure-functions to deal with everything.
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https://github.com/js-factory/router
An opinionated functional programming based routing module
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https://github.com/asarkar/99-haskell
H-99: Ninety-Nine Haskell Problems
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https://github.com/muhammadhassanraza25/budget-app
I added some amazing features in this Budget App like Show Total Budget, Show Expenses & Show Balance Budget. This Budget App also shows items in list and delete items from list.
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https://github.com/otobrglez/beyond-ruby
The code from my talk about going beyond Ruby into Scala and beyond.
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https://github.com/spamegg1/spamegg1-lean
Working through Functional Programming in Lean
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https://github.com/polossk/renai-slg-solution
Solution of 恋愛SLG
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https://github.com/armcn/fp
Almost Practical Functional Programming in R
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https://github.com/mgrinshpon/toolz-stubs
Type stubs for toolz and tlz.
functional-programming python type-safety type-stubs
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https://github.com/alkiory/video-chat
This project is crafted with the latest technologies, including React for a dynamic and interactive front end, TypeScript for type-safe code, WebRTC for peer-to-peer video communication, Socket.io for real-time WebSocket connections, and Node.js powering the backend.
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https://github.com/iamfarrokhnejad/anteater
A port scanner using Rust
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https://github.com/iamfarrokhnejad/load-balancer
A load balancer with round-robin algorithm using Go
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https://github.com/megabytesofrem/learn-haskell
Personal notes/repo to learn Haskell. 3rd time is the charm
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https://github.com/marcosh/fundic
PHP purely functional dependency injection container
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https://github.com/iamfarrokhnejad/murkmaw
A web crawler using Rust.
functional functional-programming rust rust-lang web-crawler web-crawling webcrawler webcrawling
Last synced: 28 Mar 2025
https://github.com/iamfarrokhnejad/emailval
An email verifier using Go
functional functional-programming go golang
Last synced: 28 Mar 2025
https://github.com/kourouklides/scala-examples
Example code in Scala
functional-language functional-programming functional-programming-examples functional-programming-in-scala functional-programming-language functional-reactive-programming reactive-programming scala scala-example
Last synced: 27 Dec 2025
https://github.com/prashanthr/ts-utils
A typescript utility library for functional programming
functional-programming typescript
Last synced: 03 Apr 2025
https://github.com/dandandan/superoptimizer
Simple superoptimizing "compiler"
compiler functional-programming optimization
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https://github.com/lanseqingling/curve-tool
一个基于函数式编程的数据曲线计算工具。
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https://github.com/duskmoon314/meowth
A library which provides abstractions for functional programming in Rust. Inspired by Scala library cats.
category-theory functional-programming rust
Last synced: 20 Jan 2026
https://github.com/skailasa/haskell_practice
🌈 My haskell practice
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https://github.com/bohdanmoroziuk/booky
This is a minimal example implementation of Clean Architecture in Vue/Quasar
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https://github.com/gallettilance/frp-counters
Functional Reactive Programming with BaconJS 🥓
baconjs counter frp-counters functional-programming functional-reactive-programming lazy-evaluation lazy-versions streams
Last synced: 14 May 2025
https://github.com/zhb2000/maybe-extension
Functional interfaces and useful extension methods for "Maybe types" in C++ (e.g., std::optional, pointers, and smart pointers).
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https://github.com/benji6/cataclysm
Functional programming utility library written in TypeScript
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https://github.com/afsalthaj/fp-generator
The library that solves all your data generation problem !
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https://github.com/calvinlfer/account-experiment
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https://github.com/asbhogal/time-tracking-dashboard
A time tracking dashboard created as for a Frontend Mentor challenge, coded using vanilla HTML5, CSS3 (SCSS) and JS.
css3 dashboard front-end-development frontend-mentor functional-programming html5 json sass scss vite
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https://github.com/marcuwynu23/sclib
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https://github.com/ngoc199/simple-koa-todo
fp functional-programming koa nx proof-of-work
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https://github.com/offensiveedge/colors-le
Instantly extract and analyze colors from CSS, HTML, and JavaScript with precision
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https://github.com/pfpack/pfpack-dependency-registry
PrimeFuncPack Dependency Registry is a library for .NET providing a dependency registrar intended for registering services, including dependency trees built by PrimeFuncPack Dependency, in the .NET dependency injection mechanism.
csharp dependency-graph dependency-injection dependency-injection-container dependency-injection-framework dependency-injection-library dependency-injection-pattern dependency-tree dotnet dotnet-core functional-programming inversion-of-control inversion-of-control-container pipeline pipeline-framework pipeline-library pipelines
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https://github.com/manojpawar94/go-lang-fundamental-examples
The repository has the programs on the fundamental concept of the Go Language programming. It covers variable declaration, conditional block, loop, functions, a data structure(array and slice), goroutines, struct, pointers, error handling and file handling.
arrays error-handling filehandling functional-programming functions go golang golang-examples google-golang goroutine pointers programming-exercises programming-language slice struct
Last synced: 03 Jan 2026
https://github.com/brettm12345/tailwind-generator
A cli for managing your tailwind setup complete with type generation. WIP
functional-programming optparse-applicative purescript tailwindcss
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https://github.com/iyyel/fio-chat
💜 Scalable and feature-rich chat server and clients built with FIO, designed for high-performance asynchronous communication
application chat chat-application chat-system concurrent-systems distributed-systems dotnet fiber fio fsharp functional-programming messaging-app
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https://github.com/aweskybear/obs-disp
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agnostic agnostic-to-frameworks clean-code command-pattern declarative-programming declarative-ui flux functional-components functional-programming game-development javascript javascript-library observer-pattern
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https://github.com/henryhale/render-functions
♦ A basic implementation of render functions as used in modern JavaScript Frameworks.
functional-components functional-js functional-programming functional-reactive-programming h-function henryhale html html-css html-css-javascript javascript js render-functions rendering rendering-engine
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Pattern matching for Java
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https://github.com/bredalis/jsfunctionalprogramming
✨ Functional programming in js ✨
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https://github.com/divertimentos/course-elixir-freecodecamp
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documentation functional-programming haskell jekyll jekyll-theme ruby
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functional-programming react reducer redux saga
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https://github.com/shanoaice/bethlehem
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functional-programming ramda typescript
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https://github.com/dinataklit/mars-dashbord-functional-programming-intermediate-javascript-nanodegree-program
The functional JavaScript course project will be to build a dashboard for the past and current **NASA Mars rovers**, information about each mission, and images from their excursions. You will be tasked with using all the ES6 syntax and functional programming concepts from the course to interact with a real NASA API and build the front-end logic to create the dashboard.
functional-programming javascript
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https://github.com/devkcud/salvation
💀 A generic Go wrapper for optional values, inspired by Rust's Option and Haskell's Maybe. Brings Possibly[T] to your codebase for safe, expressive nothingness.
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https://github.com/kalongn/cse-216
Programming Abstraction (College Class).
functional-programming generic java ocaml python recursion type-hierarchies
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https://github.com/horothesun/advent-of-code-2023
Advent of Code 2023 with Scala 3 and the FP Typelevel stack.
advent-of-code advent-of-code-2023 advent-of-code-2023-scala advent-of-code-2023-scala3 advent-of-code-scala advent-of-code-scala3 aoc aoc-2023 aoc-2023-in-scala aoc2023 cats ci continuous-integration fp functional-programming kittens scala scala-3 scala3 typelevel
Last synced: 12 Jul 2025