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iOS Build a Vending Machine App in Swift Displaying Additional Views Comparing Answers

Posted by Jakub Homik
Jakub Homik
3,500 Points

VendingMachineError.invalidSelection - showing alert

Hello,

I get confused. Where and when I can expect to show alert as a invalidSelection ?? I've tried to click Purchase after app started because there is now selection at the beginning but its not working. Don't know where to look at?

Cheers Kuba