Email validation in swift

    func validateEmail(emailAddress:String)->Bool{

        let emailRegularExpression = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}"
       
        let emailValidationPredicate = NSPredicate(format: "SELF MATCHES %@", emailRegularExpression)
       
        return emailValidationPredicate.evaluate(with: emailAddress)
       
    }