Did you know that you can embed a jsfiddle in a blog post or tutorial?
It's a pretty handy way to demonstrate a combination of HTML, CSS, and JS.
Check it out: http://doc.jsfiddle.net/use/embedding.html
Unfortunately coderwall doesn't support iframes so I ironically can't show it in action here.
If you only care to show off the JS you can edit the link in the iframe to do so.
It's pretty useful and easy to allow your readers to see your code in action and be able to fork it, so do it if you can :)
Bonus: An embedded jsfiddle inside a jsfiddle, as an example: http://jsfiddle.net/JonAbrams/2MWDC/