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: 2026-06-25 00:08:15 UTC
- JSON Representation
https://github.com/JunggiKim/java-refined
Refinement and functional value types for Java 8+
functional-programming java java8 maven-central non-empty refinement-types validation
Last synced: 02 May 2026
https://github.com/zalbia/learning-eff
Learning eff
eff functional-programming learning scala
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https://github.com/olivier-boudeville/ceylan-curry
Curry: a Haskell Cookbook
functional-programming haskell
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https://github.com/garyhilares/minesweeper
Simple Minesweeper game written in ISL with lambdas (a functional programming variant of Racket).
functional-programming game minesweeper racket
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https://github.com/therealkoedev/railway-results
Monads for easy and compact error handling with Railway Oriented Programming.
csharp csharp-library error-handling functional-programming monads railway-oriented-programming results
Last synced: 08 Oct 2025
https://github.com/marinaa13/sat-solver-haskell
Functional SAT solver in Haskell implementing DPLL and CDCL strategies, with applications to the 3-coloring problem. Features lazy evaluation, clause learning, and non-chronological backtracking
functional-programming graph-coloring haskell logic np-complete sat-solver
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https://github.com/mavaji/ke2019
applicative functional-programming functor kotlin monad
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https://github.com/tsheporamantso/oop-projects
These are practice projects on JavaScript Object Oriented Programming
classes-and-inheritance construtor functional-programming html-css-javascript oop
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https://github.com/jferard/yamft
YAMFT (Yet another `more-functools`) is another functional library for Python
functional functional-programming list-comprehension more tools
Last synced: 07 Oct 2025
https://github.com/phantie/pipe-forward
A tiny functional composition utility for Python. It allows you to create pipelines of functions using the | operator. Similar to |> (pipe forward) operator in F#.
fsh functional-programming pipe-forward python
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https://github.com/armadacore/essentials
TypeScript essentials for explicit error and absence handling - Option, Result, typed Exceptions and optional Callbacks the compiler actually enforces.
discriminated-union error-handling exception functional-programming monad nullsafety option result ts-essentials type-safety
Last synced: 09 Jun 2026
https://github.com/meragix/calx
⏱️ A lightweight, immutable, and fully tree-shakeable date manipulation library for Dart & Flutter. Functional-first core with zero-allocation opt-in extensions.
dart date-fns date-manipulation flutter functional-programming immutable performance tree-shaking
Last synced: 12 Jun 2026
https://github.com/prdpx7/fp
"functors maketh man"
fp-practice functional-programming
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https://github.com/aajafry/custom-video
functional-programming html-video-player vanilla-javascript
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A Phoenix LiveView performance monitoring dashboard for tracking slow endpoints and database queries
apm beam dashboard database-monitoring elixir erlang-vm functional-programming liveview metrics monitoring observability otp performance-analysis performance-monitoring phoenix phoenix-framework phoenix-liveview query-monitoring real-time web-dashboard
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https://github.com/jumpn/utils-promise
Promise Utilities
deferred functional-programming promise promise-utilities utilities utils
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https://github.com/amillert/camodular
Ocaml interpreter (Sedlex tokenizer + Menhir parser) of modularized classes with two means of inheritance.
functional-programming menhir ocaml parser sedlex
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https://github.com/mobiwn/programming-language-design
💻 Dive into a curated collection of programming language comparisons, exercises, and detailed slides in this repository for Urmia University students.
functional-programming haskell object-oriented-programming oop procedural-programming programming-language-concepts programming-language-theory programming-languages racket racket-lang racket-language urmia-university
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https://github.com/jack994/lambdacalculus_in_sml
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https://github.com/aahaidaralbaqir/identicon
Github default profile image generator written in elixir
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https://github.com/matt-mcmahon/functional
A learning-friendly functional library with a focus on clear source-code and readable function signatures.
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https://github.com/noor188/space-invaders
The design of the classic arcade game space invaders
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https://github.com/geekeast/intro-to-lodash-fp
Introduction to Lodash/fp
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https://github.com/asarkar/book-of-monads
Book of Monads
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C - Programming Language
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EdX React Native Lecture Code
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https://github.com/mtumilowicz/scala-cats-implicit-workshop
Introduction to scala implicit systems with examples.
cats cats-core fp functional-programing functional-programming functional-programming-examples functional-programming-in-scala implicits monad scala typeclass-instances typeclasses workshop-materials workshops
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https://github.com/badeend/nothing
If you want to use `void` as a type parameter, but C# won't let you...
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https://github.com/matheusphalves/functional-programming-paradigm
This repository will show to you how functional paradigm works in a feel examples: implementation of Data structures, high order functions and other functional functions.
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Last synced: 18 Jul 2025
https://github.com/primeeagle/sonata
A modern scripting language with an advanced type system, supporting both object-oriented and functional programming paradigms.
functional-programming interpreted-programming-language object-oriented-programming programming-language scripting-language
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https://github.com/haskyll/haskyll.github.io
Beginner's guide to Haskell
documentation functional-programming haskell jekyll jekyll-theme programming ruby
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https://github.com/eminencegrs/fp-in-fs
Exercises to the book "Functional Programming Using F#" written by Michael R. Hansen and Hans Rischel
dotnet fsharp fsharp-exercises fsharp-practice fsharp-samples functional-programming
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https://github.com/rodrigo-sp17/learning-scala
Functional programming in Scala, as part of https://www.coursera.org/learn/progfun1
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https://github.com/aaronlelevier/programming-in-erlang-2nd-ed-book-code
Programming in Erlang 2nd Ed. Book code and practice
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https://github.com/nohomey/prolog-interpreter
Basic Prolog interpreter written in Haskell for the Functional programming course in univeristy (FMI at SU)
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https://github.com/noyzys/nautchkafe-scylladb
Lightweight, functional, modular, and flexible way to interact system built with ScyllaDB
database database-management fp functional-programming java mysql postgresql relational-databases scylla scylladb sql sql-query sqlalchemy
Last synced: 30 Oct 2025
https://github.com/priontoabdullah/pin-matcher-vault-otp
🔢 An OTP pin generator system. 📛 Live demo: https://priontoabdullah.github.io/Pin-matcher-vault-OTP/ 🙌
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https://github.com/thom2503/haskell-practicum
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https://github.com/gcosta0410/y3s1-pfl-functional-and-logic-programming
Year: 3rd (BSc), Semester: 1st, Course: Functional and Logic Programming (PFL)
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https://github.com/glbter/scala-functional-programming
course by Olha Mazhara
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https://github.com/tom-weatherhead/atrocity
A Scheme interpreter implemented in C.
c functional-programming garbage-collection repl scheme scheme-interpreter scripting-language
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https://github.com/tmohamedashraft/scala_rule_engine
This Scala ETL pipeline processes transaction CSV files by applying discounts and calculating final prices using pure functional programming principles. The transformed data is then loaded into an Oracle database, demonstrating end-to-end data processing with type safety and immutability.
etl functional-programming oracle-database sbt scala
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https://github.com/lapets/course-programming-languages
Lecture notes, assignments, and other materials for a one-semester course on programming language concepts and theory, interpretation and compilation, and programming paradigms.
bnf compilers functional-programming interpreters lecture-notes parsing programming-languages static-analysis syntax type-checking type-systems
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A simple shopping basket in Scala, with an idiomatic approach...
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https://github.com/catseye/iphigeneia
A toy hybrid imperative/functional programming language
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https://github.com/aliariff/fp19
Functional Programming Class - RWTH Aachen University
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https://github.com/psenger/functional-programming-examples-and-patterns
This is a set of Functional Programming Examples and Patterns
examples functional-programming javascript
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https://github.com/bertrand31/damysos
🌍 An experimental data structure allowing lightning-fast, constant-time lookups of large datasets for neighboring multi-dimensional points
coordinates data-structures experiment functional-programming gps performance scala trie
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https://github.com/dennisappiah/py-prep
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https://github.com/fforbeck/spreadsheet
Spreasheet Programming Challenge
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https://github.com/trodicaro/scalabridge
Full day Scala workshop.
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https://github.com/ifkas/mars-dashboard-project
This is the second project that passed the test for the Udacity Intermediate JavaScript nano degree.
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https://github.com/ghurtchu/cut
:scissors: :page_facing_up: :knife: unix cut clone
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https://github.com/touradbaba/habit_tracker
Habit Tracker app with python.
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https://github.com/bensimmers/matchly
TypeScript utility for pattern matching in typescript - Inspired by F# match
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JS의 underscore 라이브러리를 그대로 C++로 구현하는 프로젝트입니다
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https://github.com/elenavanengelenmaslova/injectfunctionsspringannotations
Inject Kotlin functions in Spring Boot
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https://github.com/arnaudsm/array-deluxe
Superpowers for your JavaScript arrays 🦸
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https://github.com/rudxain/fastlisp
This is not mine. It's an orphan fork
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https://github.com/borisskert/lazy-stream
A lazy stream implementation with some cool methods known from functional languages
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https://github.com/simbathesailor/sample-project-react
Sample add, delete, edit list Reactjs
functional-programming pure-function reactjs
Last synced: 20 Apr 2026
https://github.com/aaron-creator/java_functional_programming
Examples for learning Streams, functional ptogramming with Java8.
consumer filter function functional-programming java-8 map predicate-functions reduce streams
Last synced: 02 Apr 2025
https://github.com/sofisar/c--_playingwithnumbers_spring-2022
This program allows the user to choose to compute all the cousin prime pairs less than a number they input, compute if a number is a perfect number, or quit.
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Last synced: 20 Aug 2025
https://github.com/ayrtonbsouza/elixir-fundamentals-reports-generator
This is an application developed as a lesson for Elixir Ignite Bootcamp, proposed by RocketSeat.
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https://github.com/waf/montecarlo
Monte Carlo approximation of π, written in a functional programming style.
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https://github.com/markpurser/es6-defender
ES6 Defender
canvas defender es6 es6-javascript functional functional-programming game games html5 html5-canvas javascript retro retro-games retrocomputing retrogaming
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https://github.com/atomicptr/phonad
Building blocks for functional programming in PHP, inspired by Haskell.
functional-programming php php-library
Last synced: 15 Jan 2026
https://github.com/mtumilowicz/scala-zio2-partially-applied-types-workshop
Scala - introduction to partially applied types based on zio example.
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https://github.com/scalawilliam/syslog-ac
Scala FS2-IO-UDP syslog server implementation for ActionFPS
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https://github.com/yanm1ng/lodash-rebuild
lodash makes JavaScript easier, so let's rebuild it for fun and practice !!
functional-programming javascript lodash practice
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https://github.com/kenato254/ts-option
The Option type is a powerful tool for handling values that may or may not be present, inspired by functional programming languages like Rust and Haskell. It provides a type-safe way to avoid common errors associated with null or undefined by explicitly representing the absence of a value.
ci functional-programming github-actions javascript nodejs npm safety typescript yarn
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https://github.com/rabestro/roman-arabic-calculator
This code is a proof of concept. The calculator can work with both Arabic (1,2,3,4,5 ...) and Roman (I, II, III, IV, V ...) numbers.
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https://github.com/amsh4/livesketch
Real-time collaborative drawing app with React UI, Elixir backend, and Python analytics. Enables seamless sketching, anomaly detection, and scalable infra.
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https://github.com/jleahred/idata
small tools to reduce mutability and program more functionally with Rust
functional-programming mutability rust
Last synced: 20 Jun 2025
https://github.com/willmcpherson2/soop
The Soop Language
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https://github.com/fonCki/functional-programming
This repository hosts the "Goodies To Go (G2G)" project, an F#-based online ordering system for a canteen, demonstrating domain modeling and basic functionalities.
Last synced: 11 Jul 2025
https://github.com/dopenchills/fp-vm
Vue.js application with functional programming patterns
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https://github.com/noor188/how-to-code-simple-data
Software development foundation
functional-programming system-design
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https://github.com/kpebedko22/labs-functional-programming
Лабораторные работы по дисциплине «Функциональное программирование»
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Welcome to an amazing world of functors and monads
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Игра "Морской бой"
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https://github.com/keepzen/pipe.js
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https://github.com/r8vnhill/root-of-haskell
Haskell implementation of the square root series approximation
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https://github.com/nshkrdotcom/gepa_ex
Elixir implementation of GEPA: LLM-driven evolutionary optimization using Pareto-efficient search for text-based systems. Features OpenAI/Gemini integration, BEAM concurrency, OTP supervision, 218 tests with 75% coverage.
ai-optimization artificial-intelligence beam concurrent-programming elixir erlang erlang-otp evolutionary-algorithms functional-programming gemini genetic-algorithms llm machine-learning metaheuristics multi-objective-optimization openai optimization otp pareto-optimization prompt-optimization
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https://github.com/critocrito/namefn
Set the name property of a function.
functional-programming functions javascript repl
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https://github.com/Shohail-Ismail/Haskell-Texas-HoldEm
A Haskell implementation of Texas Hold'em created for my COM2108 (Functional Programming) module. This project includes a working Texas HoldEm Poker game with additional features such as predefined player strategies (random, passive, aggressive) and an option for human input to play the game.
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https://github.com/mode89/fdtrie-js
Persistent data structures with fast diff
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Haskell implementation of tic-tac-toe game
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https://github.com/georgiifirsov/patternmatching
Short header-only library that allows you to use pattern matching in C++. Written in pure standard C++14.
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The language which will make you fall in love with Functional Programming
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https://github.com/vastavikadi/elixir
A personal journey into learning Elixir covering basics, functional programming concepts, and small hands-on projects. Scale to billions, real-time and what not.
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https://github.com/zoul/elm-currency-converter
Trivial currency conversion apps showcasing the Elm architecture
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https://github.com/kanitsharma/chikara
Monorepo of Mangaflux's frontend and microservices
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Code snippets of "Delegates in C#"
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https://github.com/grahamstrickland/functional_lean
Examples and exercises from "Functional Programming in Lean" - David Thrane Christiansen
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https://github.com/rcardin/reader-monad-kotlin
An implementation of the Reader Monad in Kotlin
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https://github.com/jungstershark/clojurecipe
ClojuRecipe is a Clojure-based command-line tool that suggests recipes using the Edamam API. It leverages functional programming principles to provide reliable recipe suggestions based on the ingredients you have available.
api clojure command command-line-tool edamam-api functional-programming immutable java leiningen pure-functions recipes
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https://github.com/minoddein/the-vigener-cipher-and-the-feistel-network
The Vigener cipher, written as part of a laboratory work
cipher-algorithms feistel-cipher feistel-network functional-programming
Last synced: 04 Apr 2025