prelude.ls is a functionally oriented utility library. It is powerful and flexible. Almost all of its functions are curried. It is written in, and is the recommended base library for, LiveScript.
A fully persistent balanced binary search tree
Immutable Data Collections
Use lab() and lch() color functions in CSS
Use space and slash separated color notation in CSS
Fast, prototype-friendly multimethods.
Compose new functions f(g(x))
Wraps a function with a function of a sertain arity.
Simple and complete DOM testing utilities that encourage good testing practices.
Simple and complete React DOM testing utilities that encourage good testing practices.
turf meta module
Compose your async functions with elegance.
Array methods for ES6 Iterators
Vue.js util for intelligently merging data passed to functional components.
Ramda Adjunct is the most popular and most comprehensive set of utilities for use with Ramda, providing a variety of useful, well tested functions with excellent documentation.
Automated browser testing for the modern web development stack.