Going back to JavaScript again I listened to JavaScript Jabber episode 73, React with Pete Hunt and Jordan Walke.

React is a JavaScript library for building user interfaces. It’s created and used by Facebook and since they bought Instagram it’s also used for the Instagram web application. React is using server-side rendering and there have been some discussions about client-side vs. server-side rendering. Last year Twitter went back from client-side to server-side to improve page load time. Server-side is usually faster but there are, as always, benefits and disadvantages with both solutions.

It sounds like React is a good solution for fast rendering and with huge applications like Facebook, Instagram and Khan Academy using it I would say that it’s worth looking into.