http://jspegele.stumbleupon.com/review/22620493/

Wed, 18 Jun 2008 19:14:37 -0700

It's been way too long since I've updated the site, and I wouldn't exactly say I'm coming back with a bang, but I've got a nice little function that I thought many of you could use. My latest project has a file share built in where users can store up to 100MB of files right in the web app. Very often, a user doesn't want to take the time to think up a name for the share; especially one that will only be around for one or two uses. To make their lives just that much easier, I built a function to generate a random string of characters, then check to see if that string is already in use. If it is, I simply run through the loop a second time, generating a new random string. That may not sound like the most efficient way of doing it, but being that there's over 250,000,000 10-character permutations of the 36 letters and numbers (and my site is just not that popular), I don't expect to run through that loop too many times.

http://www.spegele.com/post.php?post_id=101

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