Asynchronous JavaScript

Abstract

Now that we understand Node.js from the last chapter, it’s time to get into some core programming concepts of the language that changed it all – JavaScript. JavaScript is deceptive in that its lightweight structure will make you feel that you're indeed done with the whole language, because you have an app running and returning a response. If you dive in deeper – which is always a good thing in programming – JavaScript can offer a whole new world, where thorough concepts can make or break an app and its scalability. Let's walk you through. We'll just be explaining the most difficult parts of JavaScript pertaining to Node.js – for the most commonly understood sections, we'll leave a trail of further reading and online recommendations.