Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts.| nodejs.org
In this blog post, I show you how to build a simple chat application with a JavaScript front-end and a Java backend.| golb.hplar.ch
Cettia is a web framework, which consists of a JavaScript library that runs in the browser and on Node.js and a Java library for the back end.| golb.hplar.ch