Email & Phone Validation in Swift

Question

i am using the following code for phone number validation. But i am getting the following error. I cant able to proceed further. Help us to take it forward.

Answer 1

Using Swift 3

 func validate(value: String) -> Bool {
    let PHONE_REGEX = "^\\d{3}-\\d{3}-\\d{4}$"
    let phoneTest = NSPredicate(format: "SELF MATCHES %@", PHONE_REGEX)
    let result =  phoneTest.evaluate(with: value)
    return result
}