iOS Apprentice Tutorial 3 v5.0 -page 231 Exercise: RemoveObserver()

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1

Hi,

On Page 231for iOS Apprentice Tutorial 3 v5.0 there is an exercise that asks "what happens if you remove the call to removeObserver() from deinit? Hint: add print(self) inside the closure.

I did just that and performed the exercise repro steps, but I’m not seeing any real difference in debug output with or without the call to removeObserver() from deinit.

what should I be seeing? where exactly should the print(self) be added within the closure?

thanks in advance!

WC

2

It doesn’t matter where you put the print() as long as it is inside the closure but outside the if-statement, so for example just before the if let strongSelf = self.

3

Ok, will give that a try.

Thanks and happy holidays!

Cheers.

WC