Functional programming

• Functional - Article
• Functools.js
• FuncTools - Functional goodies for MooTools.
• functools
• Underscore.js
• sugarjs
• jii.js
• Fanta.js
• Haskell Functions for JavaScript
• Udon
• Interlude - ES5 JavaScript with Haskell inspired enhancements
• prelude.ls - is a JavaScript functional programming library. It is the recommended base library for, and is written in, LiveScript. It is based in part off of Haskell's Prelude module.
• bilby.js
• daonode functional logic solver with built in parser

Other

• Functional Programming in JavaScript
• Functional Tools - Map, Filter and Reduce
• Introduction to Functional Programming in JavaScript - Presentation slides.
• Eloquent JavaScript - Chapter 6: Functional Programming
• Functional JavaScript Presentation - Slides
• Translation from Haskell to JavaScript of selected portions of the best introduction to monads I’ve ever read