Book Image

Learning Node.js Development

By : Andrew Mead
Book Image

Learning Node.js Development

By: Andrew Mead

Overview of this book

Learning Node.js Development is a practical, project-based book that provides you with all you need to get started as a Node.js developer. Node is a ubiquitous technology on the modern web, and an essential part of any web developers' toolkit. If you are looking to create real-world Node applications, or you want to switch careers or launch a side project to generate some extra income, then you're in the right place. This book has been written around a single goal—turning you into a professional Node developer capable of developing, testing, and deploying real-world production applications. Learning Node.js Development is built from the ground up around the latest version of Node.js (version 9.x.x). You'll be learning all the cutting-edge features available only in the latest software versions. This book cuts through the mass of information available around Node and delivers the essential skills that you need to become a Node developer. It takes you through creating complete apps and understanding how to build, deploy, and test your own Node apps. It maps out everything in a comprehensive, easy-to-follow package designed to get you up and running quickly.
Table of Contents (13 chapters)

Summary

In this chapter, you learned that parsing in process.argv can be a real pain. We would have to write a lot of manual code to parse out those hyphens, the equal signs, and the optional quotes. However, yargs can do all of that for us and it puts it on a really simple object we can access. You also learned how to work with JSON inside Node.js.

Next, we filled out the addNote function. We're able to add notes using the command line, and we're able to save those notes into a JSON file. Finally, we pulled out a lot of the code from addNote into separate functions, fetchNotes and saveNotes, which are now separate, and they're able to be reused throughout the code. When we start filling out the other methods, we can simply call fetchNotes and saveNotes instead of having to copy the contents over and over again to every new method.

In the next chapter, we'll...