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iOS Build a Simple iPhone App (iOS7) Refactoring into a Model Understanding @property

getter method and self

How come in the 'predictions' getter method, we use _prediction instead of using self._predictions?

1 Answer

Stone Preston
Stone Preston
42,016 Points

_predictions is the variable your property created behind the scenes. We can access that variable just fine by using _predictions. Using self._predictions really translates into [self _predictions] and your class doesnt have a method called _predictions, it only has the variable _predictions

I know its confusing, just remember that in getter/setter methods you access the variable directly using _variableName, not self.variableName or self._variableName;

you access properties of your class using self.propertyName because this translates into [self propertyName] which calls the getter method of your property. the getter method name is simply propertyName