At the Barcamp Ruhr 2013 I gave a spontaneous introductory talk about AngularJS. Because I wanted to show live coding within the presentation and also demonstrate the power of AngularJS, I used reveal.js and wrote my own little version of jsfiddle that

• Had an iframe next to a textarea
• Offered presets that could be loaded into the text-box
• Loaded the code in the textarea into the page in the iframe
• All in barely over 100 lines of code

Being lazy first, then busy with the move, I finally got around to releasing the sourcecode for the presentation on github