Usage:
new CronJob('* * * * * *', function(){
console.log('You will see this message every second');
});
Available Cron patterns:
Asterisk. E.g. *
Ranges. E.g. 1-3,5
Steps. E.g. */2
Read up on cron patterns here.
Another example:
new CronJob('00 30 11 * * 2-6', function(){
// Runs every weekday (Monday through Friday)
// at 11:30:00 AM. It does not run on Saturday
// or Sunday.
});