JavaScript Components - What Kind of Information Is Stored Inside a Component?

With react, if you write the g s x mark up, it compiles down two java script. The tooling can tell you what kind of mistake you made yet evtently. If you have a syntax error in any of these, it's a lot easier for java scripts to report that to you when you are compiling it. Now the other white lie of react is that it's not just a few layer it does also manage state. You could write an entire application anoe from from data fetching to rendering in a react onent.