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: 2025-09-27 00:12:29 UTC
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https://github.com/thinkswan/js-functional-programming-examples

Notes from Jeremy Fairbank's "Functional Programming Basics in ES6" talk.

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https://github.com/joaopaulomoraes/joaopaulomoraes

Who am I

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An option type for .NET

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A minimal functional library for TypeScript featuring monads like Maybe, Either and Result. Built for composability and Rambda compatibility.

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https://github.com/bryanesmith/fp-in-scala-v2

Answers to exercises in Functional Programming in Scala.

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https://github.com/blakek/compose

🛠 Compose functions and promises

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High speed C# immutable append only list.

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A functional programming course for RSEs.

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Pearl programs from LSTS L1

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to Declarative Programming from Imperative Programming

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Practice Elm

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A JSON parser written in Typescript using the Parser Combinator methodology. I recommend that anyone who is interested in functional parsers should use this as a reference.

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Javascript utilities for functional programming

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Problem of unnecessary parenthesis with Functional Programming

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Function helpers for elm!

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Functional Programming, Functional Programming Exercise Solutions in Scala & Spark

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Set of awesome Scala Examples

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Learning Functional Programming library Crocks, Maybe type and more

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Flexible functional object validation for API's & highly customized software

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Learn the fundamentals of the Julia language in this 13-part course using Jupyter Notebook

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Functional pipe utility

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Tools for writing Haxe code in the functional programming paradigm.

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Structure editor for a basic typed functional programming language

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https://alexgrischuk.gitbook.io/wiki/

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Functional-style Streams API

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My solutions for the Advent of Code 2023 using Elixir.

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The open curriculum for learning functional programming in Haskell

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ƛ Project Euler solved in some different languages

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Asyncio support for cyclotron

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Property based testing in Java

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https://github.com/peekandpoke/psi

Php Simple Iterations. Map, filter, aggregate, reduce with ease. Produce readable and reliable code without hand-written loops.

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https://github.com/chinmaymahajan/react-redux

This repository contains the setup and basic code to get started with Redux with React.

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DCL-113: Functional Programming in C++17

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https://github.com/webcpu/haskellswift

A functional library for Swift programmers

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https://github.com/edgarberm/pills

A collection of fun JavaScript functions (ES6) 😎🎉🎈

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Maybe you should use a Maybe?

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Antares is an Architecture for making real-time applications with confidence.

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First time using functional programming language.

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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!

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https://github.com/timdeputter/FitEx

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https://github.com/fr33m0nk/type-driven-functional-programming

Typedriven Functional programming in Typescript targeting Bun runtime

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https://github.com/szymon-budziak/functional_programming_course_agh

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https://github.com/sergio16t/funky-go

Functional Programming Package for Go Development.

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Glueing functionals by `import __` for python!

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2nd degree equation solver, first experience in functional programming. 42Paris course project

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A toy compiler from a functional programming language to MIPS assembly and Java bytecode (mirrored from https://gitlab.com/ilankri/flap)

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