This repo contains Proofs Of Concepts and small applications implemented in Node.js. You can also find examples of how to configure other tools, like babel, webpack, etc.
For specific examples of ReactJS, go to the "learning-ReactJS" repo.
This is the implementation of a very simple-chat. It's based on (but not equal) the "chatroom" application described in the book Node.js in Action, Chapter 2: Building a multiroom chat application.
tech stack: Node.js, babel, webpack, Javascript ES06, WebSocket, Socket.io