how start the nodejs server code example

Example 1: how to create a server in node js

// code by VARSHITH REDDY SATTI
// to create a server in node.js you should.
var http = require('http');
http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/html'});
  res.write("write html code to display you test")
  res.end();
}).listen(8080);
// save this as httpServer.js
// run this by typing node httpServer.js in the command line
// to acess your server got to http://localhost:8080

Example 2: nodejs start server

const http = require('http');

const hostname = '127.0.0.1';
const port = 3000;

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello World');
});

server.listen(port, hostname, () => {
  console.log(`Server running at http://${hostname}:${port}/`);
});