Why is the Code producing same output by reversing the compare function variables

#1

Why is the Code producing same output by reversing the compare function variables

Code:

#2

Please, give an example, so that it is clear to me.

#3

If i reverse the compare function return statement from "ab " there should be a change in the sorted output but there is no change . Please clarify this .

#4

I still don’t get you. Do you mean from a > b to a < b?