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: 2026-06-26 00:08:19 UTC
- JSON Representation
https://github.com/guibrandt/persistentarray
Persistent array data structure in JS
array functional-programming js persistent-data-structure
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React
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https://github.com/arodriguezfontana/functional-programming-unq
Prácticas realizadas para Programación Funcional de la UNQ.
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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.
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Typescript API with Joi validations, Express.js and MySQL. The project has the main branch to show the solutions with functions and the change-oop-api-ts to show with Object oriented programming.
api-rest functional-programming joi-validation mysql2 nodejs oop oriented-object-programming programming typescript
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https://github.com/justmegaara/functional-programming.course
This is a repository with an implementation of Conway's Game of Life. The game itself is implemented using several stacks in C#, F# and TypeScript. The purpose behind it is to have a small real-world example to show functional principles and features. Moreover, the repository is organized as 3 different projects an a small book/course in markdown to describe functional programming and reactive programming.
asp-net-core aspnetcore csharp fsharp functional-programming functional-reactive-programming immutability net-core-3 pure-function reactive-extensions reactive-programming reactjs referentially-transparent rx signalr-core typescript unidirectional-dataflow
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Java SpringBoot PostgreSQL RestAPI
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Print layout helpers for generating a Letter-size PDF of Functional Programming in Lean
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A practical functional library for Python Lovers.
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https://github.com/mahmud035/javascript-pro-by-colt-steele
This repository provides a comprehensive guide to advanced JavaScript concepts and techniques.
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[UDEMY SEM DEMANDA 2023]
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Learn Haskell and Generally Functional Programming
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https://github.com/mhbxyz/fptk
Pragmatic functional programming helpers for Python.
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A simple, functional approach to React
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a command line logic game in common lisp
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https://github.com/ari-s-123/pdp-hw3
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https://github.com/sharpmiind/erlang-1em
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Utility functions for TypeScript
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https://github.com/davidlee18/minihaskell
a little, functional, and lazy language
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Functional programming for Python
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https://github.com/latrovalievioan/fp-drill
I'm determined to learn what a Monad is!
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Functional programming toolkit for Go
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Type-safe policy DSL in Haskell. Algebraic data type Policy = Allow | Deny | When; predicates compose via And/Or/Not; pure total evaluator; Aeson JSON codec; Hspec + QuickCheck tests. Functional purity flex for the agent-governance theme.
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Repository to get started with Elixir
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Code examples and exercises from the "Learn You a Haskell for Great Good!" book
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Minimalistic functional Sokoban (console, no mutable vars). Initially vibe coded with ChatGPT 5. Brought to working condition by Human Being 45.
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A learning-friendly functional library with a focus on clear source-code and readable function signatures.
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Brings support for piping to JavaScript, with full TypeScript integration
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Solutions to the exercises proposed during the courses on RockTheJvm site
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https://github.com/scmorrison/perl6-fp-notes
Notes on functional programing techniques with Perl 6
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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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An experimental Python library exploring persistent and versioned data structures.
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https://github.com/kattulib/yay
[IN DEVELOPMENT] Yay is a functional simple http server
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https://github.com/pedrovinhas/recursos-funcionais-js
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A dedicated space for mastering Java Stream API with hands-on workouts and exercises. Exploring the art of functional programming through practical examples and challenges.
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OOP PHP Fundamental
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Yet another functional programming library for node.js
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My functional math studies with Haskell
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Zero-dependency monads for bulletproof TypeScript applications
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Declarative programming for PySpark workflows.
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https://github.com/scalateams/scalateams-claude-plugin
Specialist Claude Code agents for the Scala ecosystem — ZIO, Pekko, Cats Effect, build tools, codecs, HTTP, databases, and testing.
ai-agents cats-effect claude claude-code doobie functional-programming pekko sbt scala scala3 tapir zio
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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.
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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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Collection of data structures implemented in a functional fashion in JavaScript
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Optional values for typescript
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https://github.com/clifftech123/ts_fun_practice
Collection of small and enjoyable functional programming exercises in TypeScrip
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https://github.com/alvarogarcia7/2048-kotlin
Practiced OOP+FP creating a clone of the 2048 game
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Asynchronous Promise based functional style utilities with full TypeScript support
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https://github.com/davidboers/elmeither
Implements the Either declaration in Elm.
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DCL-235: Effective Java Programming
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自用的js库
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Refinement and functional value types for Java 8+
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https://github.com/didier/functional-programming
Functional Programming subject of @CMDA-TT
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https://github.com/will-1-am/stanford
Stanford cs193p Spring 2020 course led by Paul Hegarty illustrating MVVM architecture, generics, functional programming using SwiftUI and Xcode. Homework assignments are included as separate git branches.
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Programming paradigms course material.
functional-programming haskell prolog python scala spark
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Checkers with AI.
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https://github.com/mihailtd/functional-programming-comparison-go-js-python
Code examples for the Functional Programming Face-Off video on the Let's Talk Dev YouTube channel, comparing functional programming in Python, JavaScript, and Go.
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A minimalist Redis re-implementation in Elm, bringing the power of functional programming to Redis interactions.
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