calc123_e4/hello.js

const http = require('http');
const hostname = '127.0.0.1';
const port = 3000;
var count=0;
const requestListener = function(_req,res){
    res.statusCode = 200;
    res.setHeader('Content-Type','text/plain');
    console.log("client connected");
    count++;
    res.end('Hello World \n Client No : '+count);
}
const server= http.createServer(requestListener);
server.listen(port , hostname);