How did check for not nil pass

Gruntcakes

I don't understand how this if statement executed as timer is nil

        if timer != nil
        {
            logInfo("Cancelling notification for op=\(op), count=\(self.retryWindow.count)")
            timer!.invalidate()

enter image description here

Harsh

The easiest thing to do is use the power of magical optionals.. No if let or guard.. since your timer is already an optional, call the method on top of an optional, and everything should be taken care by compiler automatically.

timer?.invalidate()
timer = nil

What it will do is call the method invalidate if timer exists.

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