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)

Advanced yargs

Before we get into the advanced discussion of yargs, first, I want to pull up the yargs docs so that you at least know where the information about yargs is coming from. You can get it by Googling npm yargs. We're going to go to the yargs package page on npm. This has the documentation for yargs, as shown here:

Now there is no table of contents for the yargs docs, which makes it kind of difficult to navigate. It starts off with some examples that don't go in any particular order, and then eventually it gets into a list of all the methods you have available, and that's what we're looking for.

So I'll use command + F (Ctrl + F) to search the page for methods, and as shown in the following screenshot, we get the methods header, which is the one we're looking for:

If you scroll down on the page, we start to see an alphabetical list of...