Chapter 1. Common Programming Paradigms

Node.js is a JavaScript-driven technology. The language has been in development for more than 15 years, and it was first used in Netscape. Over the years, they've found interesting and useful design patterns, which will be of use to us in this book. All this knowledge is now available to Node.js coders. Of course, there are some differences because we are running the code in different environments, but we are still able to apply all these good practices, techniques, and paradigms. I always say that it is important to have a good basis to your applications. No matter how big your application is, it should rely on flexible and well-tested code. The chapter contains proven solutions that guarantee you a good starting point. Knowing design patterns doesn't make you a better developer because in some cases, applying the principles strictly won't work. What you actually get is ideas, which will help you in thinking out of the box. Sometimes, programming is all about managing complexity. We all meet problems, and the key to a well-written application is to find the best suitable solutions. The more paradigms we know, the easier our work is because we have proven concepts that are ready to be applied. That's why this book starts with an introduction to the most common programming paradigms.