How do I pass command line arguments to a Node.js program?

Question

I have a web server written in Node.js and I would like to launch with a specific folder. I\'m not sure how to access arguments in JavaScript. I\'m running node like this:

Answer 1

2018 answer based on current trends in the wild:

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Vanilla javascript argument parsing:

const args = process.argv;
console.log(args);

This returns:

$ node server.js one two=three four
['node', '/home/server.js', 'one', 'two=three', 'four']

Official docs

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Most used NPM packages for argument parsing:

Minimist: For minimal argument parsing.

Commander.js: Most adopted module for argument parsing.

Meow: Lighter alternative to Commander.js

Yargs: More sophisticated argument parsing (heavy).

Vorpal.js: Mature / interactive command-line applications with argument parsing.