An open source tool called Iroh.js, currently in beta development, allows JavaScript developers to perform dynamic code analysis to see exactly how their code behaves at execution.

In short, dynamic rendering is Google's way of helping you get your JavaScript sites indexed by Google. Google's John Mueller began explaining it a the 21 minute mark into the video.

ASP.NET makes it easier to use HTML, CSS and JavaScript in connection with server code so you can build a dynamic Web page.