Dividing Code into Modules and Packages
One of the most important aspects to consider when writing professional software is reusability. Reusability means that parts of our code base can be purposed to work in several places or under different circumstances. This implies that we can actually use existing functionality quite easily.
As we learned, a key part of the Node.js success story is down to the fact that it comes with a module system. So far, we’ve only touched upon the basic concept of CommonJS, which is the default way of importing and exporting functionality from modules.
In this chapter, we’ll take the chance to become familiar with more module formats, including their history, use cases, and development models. We’ll learn how to divide our code into modules and packages efficiently. In addition to learning about CommonJS, we will see what a package is and how we can define our own packages. All in all, this will help us to achieve great reusability...
