Hi all, I want to discuss the Implicitly Unwrapped Optional Type.
In Swift 1 and Swift2, when a variable declared as IUO type, its value should be non-nil. If its value is nil, it will crash the program when read the value. I believe it is better to let developer catch this event, treat it as normal error, and can be caught. Thanks! Jiannan _______________________________________________ swift-evolution mailing list [email protected] https://lists.swift.org/mailman/listinfo/swift-evolution
