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Connor Crawford
6,405 PointsKeep getting an error saying "use of unresolved identifier NSNumberFormat()." Any other solution suggestions?
Xcode accepts my solution but workspaces does not. I would also like to try and find a solution that is more flexible than the one I came up with here. The goal is to add an integer to a string if the string contains an integer otherwise return nil. This have to be within an extension of the class String aka no stored properties. Thanks for the help!
// Enter your code below
extension String {
func add(int: Int) -> Int? {
var myString: String = "1"
if let myNumber = NSNumberFormatter().numberFromString(myString) {
var myInt = myNumber.integerValue
return myInt + int
} else {
return nil
}
}
}
1 Answer
Connor Crawford
6,405 PointsFigured out wayyyyy easier solution.
extension String { func add(intA: Int) -> Int? { if let intB = Int(self) { return intB + intA } else { return nil }
}
}