React's rendering works differently than traditional JS apps. He's not re-inventing the wheel, he's adapting it to a new vehicle. Also, hell, if you want to ma

React's rendering works differently than traditional JS apps. He's not re-inventing the wheel, he's adapting it to a new vehicle. Also, hell, if you want to make a good demo project then re-writing something is a great place to start. A demo project that got me hired was just a designer and I's answer to Adobe Kuler.