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/erthium/primes-and-others
General tests with prime numbers
combinatorics cpp cpp11 functional-programming makefile math mathematics prime-numbers python python3
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https://github.com/tristanpenman/haskell-exercises
Stuff I've worked through while learning Haskell
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https://github.com/chrisbenincasa/pure-redis
Pure functional Redis protocol implementation using Cats
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https://github.com/nestarz/pipe
TypeScript Pipe Operator with Async Support
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https://github.com/dtsaryov/csc-haskell-fp
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https://github.com/leostera/restruct
💾 Purely Functional and Compact Data Structures for ReasonML
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Implementations of the 99 problems in OCaml.
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https://github.com/avvessalom/itmo-functional-programming
Лабораторные работы по функциональному программированию (ИТМО, ПИиКТ-СиППО, 4 курс).
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Where the conference talk slides are...
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https://github.com/bsgbryan/pug
A game engine targeted for procedural content coded in a functional style
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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/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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Haskell implementation of tic-tac-toe game
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https://github.com/dopenchills/fp-vm
Vue.js application with functional programming patterns
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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.
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https://github.com/willmcpherson2/soop
The Soop Language
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https://github.com/jleahred/idata
small tools to reduce mutability and program more functionally with Rust
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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/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/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.
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https://github.com/yanm1ng/lodash-rebuild
lodash makes JavaScript easier, so let's rebuild it for fun and practice !!
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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/mtumilowicz/scala-zio2-partially-applied-types-workshop
Scala - introduction to partially applied types based on zio example.
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https://github.com/atomicptr/phonad
Building blocks for functional programming in PHP, inspired by Haskell.
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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/arnaudsm/array-deluxe
Superpowers for your JavaScript arrays 🦸
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https://github.com/elenavanengelenmaslova/injectfunctionsspringannotations
Inject Kotlin functions in Spring Boot
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JS의 underscore 라이브러리를 그대로 C++로 구현하는 프로젝트입니다
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https://github.com/bensimmers/matchly
TypeScript utility for pattern matching in typescript - Inspired by F# match
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https://github.com/dennisappiah/py-prep
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https://github.com/psenger/functional-programming-examples-and-patterns
This is a set of Functional Programming Examples and Patterns
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https://github.com/catseye/iphigeneia
A toy hybrid imperative/functional programming language
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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.
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https://github.com/noyzys/nautchkafe-scylladb
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Basic Prolog interpreter written in Haskell for the Functional programming course in univeristy (FMI at SU)
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Programming in Erlang 2nd Ed. Book code and practice
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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
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https://github.com/primeeagle/sonata
A modern scripting language with an advanced type system, supporting both object-oriented and functional programming paradigms.
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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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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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C - Programming Language
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https://github.com/asarkar/book-of-monads
Book of Monads
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https://github.com/raboro/sorting-algorithms-in-haskell
Most common sorting algorithms implemented in Haskell (Quicksort, InsertionSort, MergeSort, BubbleSort, HeapSort, SelectionSort, Radixsort, Bucketsort and Shellsort)
functional-programming haskell sorting-algorithms sorting-algorithms-implemented
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https://github.com/monban/fp
Collection of functional programming constructs for Go
functional-programming go golang
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https://github.com/aryanpillai2007/computer-science-3-labs
All of the Advanced Computer Science 3 Labs I have completed over the 2024-2025 school year.
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https://github.com/jwhittle933/funked
A Functional Library for Go
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https://github.com/abualiyousef/string-calculator-task
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My personal blog built with Ocaml and Soupault.
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This is freeCodeCamp "JAVASCRIPT ALGORITHM & DATA STRUCTURE" Certification Project (TELEPHONE NUMBER VALIDATOR).
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Practical java 8 utility belt for you projects.
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https://github.com/milandjurdjevic/either
Functional-style error handling in C# using a simple Either implementation.
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https://github.com/gokselgoktas/hotline
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EarlyFuncPack Core.AsyncPipeline is a core library for .NET consisting of asynchronous pipeline.
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https://github.com/max-sir/kotlintraining_koans
Solution for all tasks from Kotlin Koans https://play.kotlinlang.org/koans/overview
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Learning from book
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Writing Lazy K interpreters in various languages
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https://github.com/okyungjin/fx-playground
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https://github.com/brucou/graph-adt
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https://github.com/gabrielczar/functional
Exercises using functional language
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https://github.com/ronanyeah/spotify-fresh
play with your spotify playlists using a Node.js cli
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https://github.com/nylle/javaseq
A lazy sequence for Java (no Stream involved)
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Advent of Code 2023 in Kotlin
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add phnctionality | modules for functional programming | Python + Mypy
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Go Optional, Nullable Types and Functional Utilities.
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https://github.com/theoliverlear/java-jump-start
Java Jump Start is a comprehensive guide designed to help you quickly learn the amazing abilities of Java. This guide will provide you will all the essentials in syntax as well as the unique features of Java.
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https://github.com/MicheleCattaneo/BST-traversal-visualization
Visualise traversal algorithms on any Binary Search Tree
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https://github.com/jtucker/fp-trailblazers
Repository of notebooks that I use for my functional programming talk `Functions! Functions! Functions!`
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https://github.com/alepop/compose
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Git repository containing all the resources related to a school project on DNA/RNA strands construction Phylogenetic tree simulation using Functionnal Programming
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https://github.com/sobakavosne/generator
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A type-safe way to combine interdependent functions into a callable chain
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Pure, functional JWT library for Scala, works with any Monad, any Json library
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