Is there any problem if i dont use //prints?

Answer 1

Are you asking whether it's a good idea, to not comment code? If so, I can tell you that it's extremely important to right good comments in production code. Comments are as important as the code, as good comments improve readability of the code, making it more maintainable, and reducing the probability of bugs.

Answer 2

there's no problem with it, they're used for letting yourself know what parts of the code do what, as a user reference