This post is more than 2 years old.
Pardon the super-long title up there. This is based on a simple StackOverflow question from today (Select random list item and add class) based on a simple premise: Given a set of tags, how would you remove a class from one of them and dynamically re-apply it to another one chosen by random?
I chimed in, as did others, but I thought it might be interesting to share my solution here. I updated my code to make use of SessionStorage to remember the last item selected. As you know, I'm a big fan of LocalStorage and other "practical" HTML5 features, and I thought this was a nice, if simple, example of where you could use the API. Here's the code:
And you can run it on JSBin here: http://jsbin.com/axudey/1/
There really isn't much to say about this. If anyone needs something explained, just ask. Again - I'm mainly sharing it as a practical example of LocalStorage.
P.S. As explained on StackOverflow, I intentionally made the code more verbose then it needed to be to help explain it to the user. Since we are still talking just 20 lines of code here, I don't think that's a big deal. ;)