A selector could be the mechanism used to choose a technique to execute for an item, or maybe the exclusive identifier that replaces the name when the resource code is compiled. A selector functions like a dynamic operate pointer that details on the implementation of a class’ strategy.
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Working with a method that will take an NSError usually means working with an optional variable (a variable that may or may not exist) along with the unwrapping the error if it exists.
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A selector may be the mechanism utilized to choose a technique to execute for an item, or the unique identifier that replaces the identify in the event the supply code is compiled. A selector functions similar to a dynamic function pointer that details into the implementation of a category’ ap
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