CronJob in Nodejs

var cron = require('cron').CronJob; //https://github.com/ncb000gt/node-cron
var http = require('http');

var counter = 0;

http.createServer(function(req, res) {
	res.writeHead(200, {'Content-Type': 'text/plain'});
	res.end('Counter : ' + counter + '\n');
}).listen(8181);

var job = new cron('* * * * * *', function() {
	console.log('Increasing counter..');
	counter += 1;
});
job.start();

console.log('Server running at http://127.0.0.1:1337');