In this chapter, we learned how to use require to load in modules that come with Node.js. We created our files for our notes application and required them inside app.js. We explored how to use built-in modules and we explored how to use modules we defined. We found out how to require other files that we created, and how to export things such as properties and functions from those files.
We explored npm a little bit, how we can use npm init to generate a package.json file, and how we can install and use third-party modules. Next, we explored the nodemon module, using it to automatically restart our app as we make changes to a file. Last, we learned how to get input from the user, which is needed to create the notes application. We learned that we can use command-line arguments to pass data into our app.
In the next chapter, we'll explore some more interesting Node...