The Future of JavaScript MVC Frameworks

Instead of using JavaScript objects, Om uses ClojureScript data structures which we know will not be changed. Because of this, we can provide a component that implements shouldComponentUpdate by doing the fastest check possible - a reference equality check. This means we can always determine if the paths changed, starting from the root, in logarithmic time.

「未来」についてはまだ飲み込めてないんだけど、persistent data structure ってこういうところに使えるんだというのが面白かった。