monads

Λrrow - Functional companion to Kotlin's Standard Library

C# functional language extensions - a base class library for functional programming

The most powerful IO monad implementation in JS, possibly in any language!

Functors, Applicatives, And Monads in Python

A library for safer and smarter error- and "nothing"-handling in TypeScript.

A cohesive & pragmatic framework of FP centric Scala libraries

learn-by-doing course/tutorial for functional programming on scala

👻 Option, Result, and Either types for TypeScript; Inspired by Rust

Simple & Efficient data access for Scala and Scala.js

In this article I try to explain why Haskell keeps being such an important language by presenting some of its most important and distinguishing features and detailing them with working code examples. The presentation aims to be self-contained and does not require any previous knowledge of the language.

🥃 Functional Algebraic Data Types

FP-TS Cheat Sheet

Mu is a purely functional library for building RPC endpoint based services with support for RPC and HTTP/2

Mu (μ) is a purely functional framework for building micro services.

Monad, Functional Programming features for Golang

Either and Maybe monads for better error-handling in C++ ↔️

A library of Haskell-style morphisms ported to ES2015 JavaScript using Babel.

Boilerplate-free syntax for computations with effects

PHP Functional Programming library. Monads, common use functions and generic collections.

Proof of concept: Maybe, Reader and Try monad