A selector may be the mechanism applied to pick out a way to execute for an item, or maybe the exclusive identifier that replaces the title if the supply code is compiled. A selector acts like a dynamic functionality pointer that points into the implementation of a category’ process.

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A typical reason for exc_bad_access glitches that are not detectable from the compiler is seeking to accessibility released objects. In such circumstances, enabling NSZombies in Xcode could be a highly effective debugging technique. Enabling NSZombies keeps objects that may Typically be launched

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