Swift: How to view the values of variables displayed in Xcode's watch window?

Question

Simple question - how can you view the values of variables in Xcode\'s watch window when using Swift?

Here\'s an example, see how mdn has the value 2067134273 yet its no

Answer 1

Xcode 6 beta 4 shows values of variables of NSString and NSString? types:

Nevertheless if you may need to see details for some other type even from some third-party framework that you cannot alter then you can implement debugQuickLookObject method and return custom description. In case of third-party lib you should wrap it in extension. For NSString it will be:

extension NSString {
    func debugQuickLookObject() -> AnyObject {
        return self
        // return "Here is debug value: \(self)"
    }
}

To preview it, just select the item in watch window and hit spacebar: