Does using a framework prevent me from mastering JavaScript?

Question

How would I become a master of JavaScript if I always used frameworks and did nothing by myself?

I asked a question on JavaScript and everyone recommend that I use frame

Answer 1

i think there's a confusion between Javascript language, which is simply amazing and worth learning for every programmer, and browser "object models" and css, which are messy, buggy and ugly. A good library in the functional style (guess which one i mean) encourages you to use pure Javascript in all its nicety and protects you from all that dirty and boring browser stuff.