server.js

// import express
const express        = require('express')
   app               = express()
   port              = process.env.port || 3000
   expressLayout     = require('express-ejs-layouts');
// configure application

// tell application express to get static ass css
app.use(express.static(__dirname + '/public'));

// set ejs as engine template for app
app.set('view engine' , 'ejs');
app.use(expressLayout);

// set routes
app.get("/" , (req,res) => {
   res.send("hello")
   res.end()
})

// listen port
app.listen(port , () => {
   console.log(`Da chay server thanh cong ${port}`)
})