Can we use AJAX in the code playground?

Answer 1

well i seriously doubt it as 1. its not an offered course and 2 it requires a server side functionality available at runtime, im surprised they allow php to be honest, but at least that is all resolved at compile time, ajax would have to make server requests during live use, now that you mention it does it even allow GET POST headers for input or just one page access at runtime, if not there's another answer