By this point, the main structure of your application is complete. It’s time to think about new features that could improve the overall interaction on your application but aren’t necessary for the fundamental functionalities. In earlier lessons, I discussed how particularly useful Node.js is for handling streams of data. If you want to send a big batch of data across the internet, Node.js makes the process simpler by supporting data chunking. Chunks of data are connected as they arrive at the server and processed when there’s enough data to do something meaningful with them. This approach is useful in various types of data streams, and it’s made possible through the event-emitting and event-handling features of Node.js.