RxJS - Reactive Extensions for Javascript
Svelte - Cybernetically enhanced web apps
bacon.js - A small functional reactive programming lib for JavaScript.
Glimmer - Fast and light-weight UI components for the web
Chibi Scheme - Official chibi-scheme repository. Contribute to ashinn/chibi-scheme development by creating an account on GitHub.
Preact.js - Preact is a fast 3kB alternative to React with the same modern API. Components & Virtual DOM.