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Lemonad: A functional programming library for JavaScript

Lemonad is a functional programming library for JavaScript, offering functions and utilities to support a functional style of programming in the language.

Background

- **Lemonad** is a JavaScript utility library bringing functional programming concepts (from Clojure, Haskell) into JS. Provides functions like `juxt`, `fnull`, `walk` for a more declarative, compositional style. - Created by **Michael Fogus**, author of *Functional JavaScript* (O'Reilly, 2013). The library accompanied his book and talks, serving as an early showcase for Clojure-style higher-order functions in JS. - **Why it matters**: Before Ramda or Lodash/fp, Lemonad was an early attempt to bring immutable-by-default thinking and function composition to JS. It never saw wide adoption but influenced later functional libraries and is often cited in discussions of JS's functional history. - **Key functions**: `juxt` (apply multiple functions to one value, collect results), `fnull` (null-safe wrapper), `walk` (recursive tree transformation).

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