xcode error with computed variable

Question

Good all!

I study lectures from Stanford University on the website bestkora.com

Translation from English. In Russian in lecture xcode 7, and I have xcode 6.2 (OS X 10.9) the problem arose with the variable

I declared UILabel as an outlet and called it display

@IBOutlet weak var display: UILabel! var displayValue: Double { get { return Double(display.text!)! } set { display.text = "\(newValue)" } }

all as specified in the lecture, but gives an error

 Could not find an overload for 'init' that accepts the supplied arguments

what's wrong, don't understand

VAndrJ VAndrJ 13.4k one ten 31 · Accepted Answer · 2016-07-19T13:15:55

Option 1. Replace

 return Double(display.text!)!

on

 return NSNumberFormatter().numberFromString(display.text!)!.doubleValue

Option 2. Update macOS and Xcode

1 answer 1