Dan Gilleland posted on September 29, 2006 14:10
Normally I wouldn't expect myself to find a reason to blog about Javascript. After all, for anyone who's gone through the browser wars having tried to do dhtml the hard way and be browser friendly, Javascript, CSS, HTML, & DOM differences would be enough to make one vow never to touch the stuff again, particularly when the easy-to-control server-side .NET programming became available.
But, if you are interested in AJAX, you'll probably get back to the Javascript thing again (like I am about to).
So, along that vein, I thought I would note a post by Bertrand Le Roy about a nice, tight-coded way to ensure a javascript function returns a Boolean (as opposed to a null, undefined, or object. He also shared a way to force an undefined to return a null. Here's the code snippets:
!!something return something || null;
Ah! That's refreshing! Brings me back to my old C++ days....