Running js file in terminal

Question

I'm trying to run this simple file in an empty folder

// time.js
const moment = require('moment')

function getDay() {
  var today = moment().day()
  console.log(today);
}

getDay()

using node time.js

But I get

Error: Cannot find module 'moment'

However I have run npm install -g moment and npm install moment.

What noob error am I doing?

Answer 1

Just do the following commands on your console inside your folder:

npm init // just hit enter some times or follow the process
npm install moment --save
node time.js

Note: You could skip the npm init part but I wouldn't recommend it due to dependency control.