Printing value of a optional variable includes the word "Optional" in Swift [duplicate]

Question

.I am new to iOS and to Swift In my application I'm trying to print an optional value and it prints "Optional(value of the variable)" How do I remove this word optional

var bDay = StringUtils.convertDateToString(birthDate, format: Constants.BIRTHDAY_FORMAT)
let age = self.clientDetail?.getAge()
println("age.....\(age)")
bDay += "\(age)"

The output in the console is

age.....Optional(29)

I'm trying to assign this variable to a UILabel but on screen it shows up like Sep 17, 1986 Optional(29)

My objective is to remove this optional word and make it appear like Sep 17, 1986(29)

Thanks in advance

Answer 1

Optional chaining is used here:

let age = self.clientDetail?.getAge()

So return of getAge() is optional value. Try optional binding:

if let age = age {
    println("age.....\(age)")
}

or simply unwrap the age with age!, but this will crash your app if age is nil.