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: 2026-06-30 00:12:00 UTC
- JSON Representation
https://github.com/marcelo-gomj/windows-10-calculator
It's the Windows calculator made with pure HTML, CSS and JavaScript. I tried to apply some functional programming concepts.
browser calculator css functional-programming html javascript vanilla-javascript webapp
Last synced: 17 Apr 2026
https://github.com/ghillairet/frdomain-kt
Kotlin version of code from the book Functional and Reactive Domain Modeling
functional-programming kotlin reactive
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https://github.com/prdpx7/fp
"functors maketh man"
fp-practice functional-programming
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https://github.com/lmarzocchetti/wangtiles-ml
Wang Tiles generator in Ocaml
functional functional-programming ml ocaml wang-tiles
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https://github.com/SanTiepi/benoit
Benoît — A programming language where functions are algebra and modules are messages between machines.. Built for human-AI collaboration.
ai benoit developer-tools functional-programming inline-testing javascript open-source pattern-matching programming-language token-efficient transpiler
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https://github.com/minikin/github-swiftui
🦥GitHub meets SwiftUI
combine functional-programming github ios ipados swift swiftui xcode
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https://github.com/hillaryjude/python-from-scratch-part-3-func-prog
Concepts on Sets, functional programing and its inbuilt functions
filter functional-programming map reduce sets-python
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https://github.com/mf42-dzh/transduction
Clojure's transducers in Scala.
composable-functions functional-programming library reducers scala transducers
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https://github.com/shakadak/ft_turing
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functional-programming html-video-player vanilla-javascript
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https://github.com/developeromarfaruk/react-authentication
Simple React Authentication Project with Firebase.
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https://github.com/palutz/scalaexercises
Notes, code and worksheets from scala-exercises training (scala-exercises.org)
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https://github.com/aviabird/elixir-beginner
Repository to get started with Elixir
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https://github.com/appsweet-co/debug
Makes your console logs much better
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https://github.com/hareeshreddi/programming-languages-lab
My attempts for the Programming Languages Lab (CS 431 Course) Assignments at IITG
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https://github.com/anurag1101/the_perfect_guess
Perfect Guess is a simple number guessing game built with Python. Players try to guess a randomly generated number between 1 and 100, receiving feedback on whether their guesses are too high or too low. The game continues until the correct number is guessed, with an option to play again. Enjoy testing your guessing skills!
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Map a function over nullable value
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https://github.com/johnpaulada/maybe
A simple, lightweight, Maybe implementation in JavaScript.
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https://github.com/jumpn/utils-promise
Promise Utilities
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https://github.com/nzrsky/funkobjc
Functional and typed extensions for ObjC 🚀
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https://github.com/dhershman1/mondrian-elm
Elm rebuild of my mondrian idea
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https://github.com/bra1l0r/iterify-rs
Iterate over anything with Iterify!
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https://github.com/rcardin/raise-scala-example
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https://github.com/joshuaganter/go-functional
Iterative functions for functional programming in Go.
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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
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https://github.com/bee-produced/bee-built
A collection of modular libraries tailor-made for Kotlin enthusiasts.
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https://github.com/ethowitz/sruby
An increasingly less miniature implementation of Ruby in Scala
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https://github.com/foxfriends/svelte-io
IO monad for Svelte
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LINQ Extended Design. Additional C# extension methods (inspired by LINQ) and F# collection functions
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Multi-agent Claude CLI orchestrator -- a Team Lead delegates to Engineers and QAs, reviews their work, and hands you a PR for sign-off. Written in GALA with gala_tui.
agent-orchestration ai-agents anthropic claude claude-ai claude-code cli developer-tools functional-programming gala multi-agent orchestrator tui
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Restaurant API using DRF, with Authentication, Menu, Cart and Order management systems and etc.
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CLI tool for building OCI images, creating Crush sandbox containers, and packing Docker Sandbox agent kits — powered by fp-go functional programming combinators.
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Functional Programming Course 2021/22 at AGH UST. The language used was Haskell.
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https://github.com/rcardin/functional-portfolio
A toy implementation of a portfolio application that uses functional domain modeling and functional programming
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Client-side DOM swiss army knife and switchblade.
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https://github.com/deepcloudlabs/dcl235-2020-may-11
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https://github.com/amillert/camodular
Ocaml interpreter (Sedlex tokenizer + Menhir parser) of modularized classes with two means of inheritance.
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https://github.com/victorlga/payment-webhook-handler
A Clojure webhook handler for processing and validating payment events with SQLite persistence and HTTP callbacks for confirmation/cancellation.
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https://github.com/geekeast/intro-to-lodash-fp
Introduction to Lodash/fp
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https://github.com/milaziabchenko/vanilla-javascript-playground
JavaScript theory and code snippets, using functional and OOP, prototypes, higher-order array methods, regular expressions, DOM, events, and asynchronous JS
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https://github.com/dirkbosman/func_with_scala
Func / Functions / Fun with Scala :)
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https://github.com/jyothsnasrinivas/eta-android-interop
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https://github.com/sumanjitsg/redistil
A minimalist Redis re-implementation in Elm, bringing the power of functional programming to Redis interactions.
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https://github.com/codeconscious/unique-file-generator-fsharp
Create an arbitrary number of random, unique (by name and content) files.
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https://github.com/kash1444/py_files
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https://github.com/hamidhosen42/functional-banking-website-js
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https://github.com/deepcloudlabs/dcl165-2020-jan-02
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https://github.com/thautwarm/xylearn
the way to fewer tasks and more convincing products.
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https://github.com/darren277/haskell-blockchain
A simple blockchain written in Haskell along with a Haskell web server for interacting with it along with Postgres interactivity.
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https://github.com/ahlusar1989/spark2sfoverflow
StackOverFlow K-Means Analysis
functional-programming k-means scala spark
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https://github.com/mhashim6/kotlinheroes
My solutions for some of KotlinHeroes' problems.
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https://github.com/davidboers/elmeither
Implements the Either declaration in Elm.
either elm functional-programming package
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https://github.com/fabiannorbertoescobar/lambdas-streams-java-ejercicios
Programación funcional en Java con Lambdas y Streams
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https://github.com/hecdelatorre/programacionfuncionalagenda
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https://github.com/rtorr/ts-fp
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https://github.com/mrgravity817/ruckpal
Mini Paypal clone, written in Rust for practicing domain modeling with clean architecture
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https://github.com/wdalmut/kata-example-1
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https://github.com/jaandrle/fpubsub
PubSub pattern library with types support
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https://github.com/aygp-dr/lazy-weekends
A chill, 8-week Haskell learning journey designed for busy people who want to explore functional programming without the pressure.
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https://github.com/rafaelvicio/pokedex-rxjs
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https://github.com/kanitsharma/elm-giphy
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https://github.com/al-ghaly/ruleengineusingscala
A Rule-Based discount calculating engine for a retail store. The engine reads transaction data, applies various discount rules based on the product, date, and other criteria, and writes the results back to a database.
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https://github.com/mthadley/aoc2017
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https://github.com/nshkrdotcom/gemini_cli_sdk
An Elixir SDK for the Gemini CLI — Build AI-powered applications with Google Gemini via a robust, idiomatic wrapper around the Gemini CLI. Features streaming, structured output, session management, model selection, and OTP supervision tree integration for production-grade Gemini-powered Elixir apps.
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https://github.com/youstinus/toolsgo
Tools with utilities, transformers, generators and other useful functions.
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https://github.com/agapas/images-switcher
React app to switch images on toggle, on mouse hover or touch and by scrolling the page, made to practice React Hooks.
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https://github.com/quacksouls/jaf
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functional-programming javascript
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https://github.com/asarkar/hackerrank-fp-haskell
Functional Programming code challenges on HackerRank
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https://github.com/wking-io/lemonade
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