How to create a server in nodejs code example

Example 1: how to create node js server

//HTTP MODULE NODE.JS
var http = require('http');
var server = http.createServer(function(req, res){
  //write code here
});
server.listen(5000);

Example 2: create node js server

import express from 'express';
const server = express();

const port = 8080;

server.get('/', (req, res) => {
  return res.send('Hello, Express.js!');
})

server.listen(port, () => {
  console.log(`Server is running on port ${port}`);
});