In MS visual studio we just right click add watch.
How does one do this in Xcode?
As fas as i understand you would like to see when a variable is changing. For this make a breakpoint and right click on it and choose Edit Breakpoint
. A window will appear:
Make sure you choose the right action like Debugger Command
or Log Message
and check the tick down at the options Automatically continue after evaluating
. So you get some kind of action (e.g. logging, sound, etc) and wont stop at the breakpoint.