That facebook icon that tells you how many new messages you have? Useful, huh? You don’t leave the page, and it gets updated. It’s a little trick done with a combination of SQL and asynchronous jQuery.
I needed to implement notifications for a few applications at work, so I’ve found a way to implement this with just a few lines of jQuery and an asynchronous call to the database.
I’ve put this example up on bootsnipp:
Check it out! On bootsnipp, it’s just pulling a number from random.org and refreshing for demo purposes, but the source of the number can be replaced with an SQL count(*) query.