(puttin’ the grumpy hat on, full Crusty mode)
Don’t use instance variables
Before properties, Objective-C code was usually like this:
1 2 3
and then followed by explicit getter and setter methods in implementation that read or set this
_internalVar. If you are still using this – stop. When I see code written like this, I dismiss it as obsolete and move on to something else.
@property. Always and ever.