I am an experienced programmer with 50+ years experience. I am now learning Swift so I can teach it to middle-school students
I am a recognized expert in C++ (fifteen years a Microsoft MVP in the C++/Windows/MFC area) so Swift did not seem to pose any problems. But when I see unexpected behavior, I tend to add debug-print statements. But I cannot discover where the output is going. The documentation is remarkably silent on this topic.
So how can I see it?