How to read user input directly in Node.js

Question

From the following code I can read and console.log the line

const readline = require('readline');
const { stdin: input, stdout: output } = require('process');

const rl = readline.createInterface({ input, output });

rl.question('What is your name? ', (answer) => {
  console.log(`Hi ${answer}!`);

  rl.close();
});

But I am trying to read user input like this Input: node app.js John Ouput: Hi John!

How can I achieve this in node?

Did you read e.g. https://nodejs.org/en/knowledge/command-line/how-to-parse-command-line-arguments/? — jonrsharpe, Feb 12 '22 at 10:32

score 0 · Accepted Answer · answered Feb 12 '22 at 10:32

To achieve that you can use the following:

process.argv

process.argv is an array containing all arguments that were used when invoking you programm. Image you called your programm like that: node index.js "John", process.argv would look like this: ["node", "path/to/index.js", "John"].

How to read user input directly in Node.js

1 Answers1