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

Most of the people have given good answers. I would also like to contribute something here. I am providing the answer using lodash library to iterate through all command line arguments we pass while starting the app:

// Lodash library
const _ = require('lodash');

// Function that goes through each CommandLine Arguments and prints it to the console.
const runApp = () => {
    _.map(process.argv, (arg) => {
        console.log(arg);
    });
};

// Calling the function.
runApp();

To run above code just run following commands:

npm install
node index.js xyz abc 123 456

The result will be:

xyz 
abc 
123
456