As in many web apps out there, this week I needed a date range picker. I shopped around and while I did find a couple of good options they were (a) too clunky and (b) didn't prevent you from selecting invalid ranges. The latter being the one I was really interested in. So I coded up something simple that worked and looked nice and decided to share around. It's the jquery-daterange-picker.

What's the difference between your application's javascript code and its java/ruby/python/whatever code? Think about it for a second. Done? Well, the answer is: none! In today's web applications your javascript code is no different from the rest of your code base but yet we treat it with disregard - and we're all to blame. We often see developers investing time writing all sorts of automated tests around their code base but fail to do the same for their javascript - and yet they get surprised when their client can't click on a button on their web app that depends on that ajax call that has been manually tested once when the page was first released.