This chapter focused on getting you up to speed on the Node.js environment. Node.js Packaged Modules provide the functionality that Node.js does not inherently come with. You can download these modules from the NPM registry, or you can even create and publish your own. The package.json file provides the configuration and definition for every Node.js module.
The examples in this chapter covered creating, publishing, and installing your own Node.js Packaged Modules. You learned how to use the NPM to package a local module as well as publish one to the NPM registry. You then learned how to install the Node.js modules and use them in your own Node.js applications.