Functional Packages

Make your javascript code cleaner and more expressive with the power of monads and functional programming.

TypeScript/JavaScript library of Maybe, Either and Tuple Monads.

JavaScript monad library

Monads in JavaScript

Monapt Option types for JS using type safe readings

Functional wrapper around the mongodb driver

Zero-dependency Money library (FP, ESM, BigInt, Typescript).

A monadic wrapper for MongoDB

Powerful pattern matching for JavaScript

Functional testing framework for the MinorJS web framework.

Function lib for function.

A set of js functions that I find useful. Not necessarily functional, but more functional than lodash.

Dead simple routing with regexes. Framework agnostic, but comes with a react/redux example project

[](https://www.npmjs.org/package/micro-observers) [](https://bundlephobia.com/result?p=micro-observers) [![Build Stat

A composable, framework agnostic state solution built on top of redux

Creates an array of size N, filled with undefined. Useful for applying higher order functions (e.g. map, reduce) to produce dense arrays of size N.

JavaScript Optional type for functional programming with Flow

Functional lenses-based state store

converts any object-oriented function's call to a functional call: o.f(args) => f(o, args)

A library for asynchronous functional programming