The value is an NSNumber
, not an NSString
.
You can use stringValue
to
convert it:
if let a = d["a"] as? NSNumber {
let aString = a.stringValue
println(aString) // -1
}
If you're sure it's there, you can use forced unwrapping and string interpolation:
let a = d["a"]! as! NSNumber
let aString = "\(a)"