Node.js blocking event loop example

block.js

'use strict';

const http =  require('http');
const server = http.createServer((req,res) => {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('ok');


  // below code will block everything until 10 seconds elapsed
  console.log('starting blocking code, try make connection!');

  const target = Date.now() + 1000 * 10;
  while(Date.now() < target) {

  }
  console.log('ended blocking code, re-try make connection :)');
});

server.listen(3000);