Inquirer.js VS Commander.js

Inquirer.js is a handy tool for adding interactive prompts to your CLI.

There is a CLI application based on Inquirer. Potentially, it could be another CLI library, say something from the following list. Our goal is to provide integration tests. But before that, let's look at the related terminology.

inquirer

If you boil plop down to its core, it is basically glue code between inquirer prompts and handlebar templates.

This is a new tutorial on how to create a command line interface application, and our application today is a Mortgage Calculator. I used in this program packages such as 1- inquirer for interactive questions and answers: https://www.npmjs.com/package/inquirer 2- Sqlite3 DBMS 3- Chalk for colorful output in the terminal: https://www.npmjs.com/package/chalk

We can easily achieve that with the inquirer package. This package allows you to ask different types of questions, such as input questions (open-text questions), confirmation questions (Yes/No), etc.

Visit the Commander.js reference.

In the previous article, I looked at a Commander to configure and accept cli options and assign it to a variable called program.

You can write a command line utility using zx or commander.js. Hit a public api, spit stuff out in the console, etc.

In your index.js you can do whatever you want, even create an interactive CLI (check commander).

There is clearly a whole load of repetition, so this should be fairly easy to build and parameterise. Essentially this will all just be string building so we won't need to use any particular libraries for most of this script. We will need a way to call ffmpeg though - and ffmpeg will need to be present too, of course. To call a CLI command we can use the package commander.

Commander.js is an NPM package that makes it easier to build CLI tools. You can find its documentation over here

You can also use npm package commander to make more complex command line tool with lot of options and sub commands.

commander - npm - Required. A library that lets you define the commands and their arguments, options, help, etc.

Throughout my time writing and updating my static-site generator, I've been using npm from the very foundation I use an npm package called commander. Therefore, it is obvious that for the tool that I will be using to publish my ssg, I will do so with npm.

The command line has thousands of tools, such as awk, sed, grep, and find available at your disposal that cut development time and automate tedious tasks. Creating a command line tool in Node.js isn't very complicated, thanks to a powerful library like Commander.js.