How to Build Your First NodeJS Server with ExpressJS

npm init

npm install express http --save

touch index.js

npm install nodemon -g

let express = require('express')
let http = require('http')

// Initializes an express app.
let app = express()

// Gets the first route: '/'.
app.get('/', function(req, res) {
// Sends "HELLO WORLD"
    res.send("HELLO WORLD")
})

// Creates a new http server with app and listens on localhost:8080 in your browser.
http.createServer(app).listen('8080')