What is rapid prototyping?
When you build rapid prototypes to communicate your business concepts, it is sometimes enough to show a few static frames. But most of the times you need to show a little bit more.
I wonder why do UX or Product Designers need to code. In order to test interactive html prototype you can just use Justinmind Ptototyper. Also it supports Google analytics and I am going to try it with Hotjar embedding it in html. I think Axure can do a similar stuff.
So you get quantitative and qualitative data.