How to accept input from user on command line in javascript?

Question

I am writing some code in JavaScript and running it using the command line using the command node filename.js. I want the user to enter input values on the command line and use these values for further process and output.

you want the user input as a parameter to script i.e. node filename.js --p1 param1 --p2 param2 or in the console. i.e. user runs the script the asked for the first param then second and so on? — arizafar
– arizafar, Commented Sep 23, 2019 at 10:44
@AZ_ I want input in the console and want to accept multiple values one by one — Shraddha J
– Shraddha J, Commented Sep 23, 2019 at 11:05

nico · Accepted Answer · 2019-09-23 10:40:59Z

1

Use prompts npm package

npm install --save prompts

const prompts = require('prompts');

const questions = [
  {
    type: 'text',
    name: 'dish',
    message: 'Do you like pizza?'
  },
  {
    type: prev => prev == 'pizza' ? 'text' : null,
    name: 'topping',
    message: 'Name a topping'
  }
];

(async () => {
  const response = await prompts(questions);
})();

answered Sep 23, 2019 at 10:40

nico

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4 Comments

Shraddha J Over a year ago

I'm getting error as below: internal/modules/cjs/loader.js:638 throw err; ^ Error: Cannot find module 'prompts'

nico Over a year ago

cd into your project folder & run npm install --save prompts then try again

Shraddha J Over a year ago

Yes it did worked. But how can I get values entered by the user?

Shraddha J Over a year ago

Thanks. I got it.

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