I'm pretty new to coding, so be patient with me please! :)

I'm working with Firebase and am having trouble getting vars from my module javascript. I know that modules are not part of the global vars so how would I go about getting those vars? (or making them global?) I need this because I want to retrieve data from my Firebase Realtime Database and move it over into a non-module javascript.

If the code could be simple so I can understand it that would be great! :)

(This is just normal browser-based javascript by the way, no special things added/downloaded)