You can follow along with all the course lessons in your own copy of Visual Studio by downloading the Processing.JS Sketchbook used in the tutorials.
Grab the applications
ProcessingJS for Windows - a micro-IDE in the Windows Store that allows users to write, view and export ProcessingJS sketches.
ProcessingJS Reader for Windows Phone - view your ProcessingJS sketches on your Windows Phone. Share sketches by emailing them or sharing them via NFC. Available in the Windows Phone Marketplace.