Empty mask

[lucaspedrazoli]

It would be great if we could work with empty masks too!
we could do something like:

public func applyFilter(textField: UITextField){
        if _mask == "" {
          return
        }

[moraisandre]

Hi Lucas Pedrazoli,

I added the following code and fixed the nil problem:

if _mask == nil || _mask.trimmingCharacters(in: NSCharacterSet.whitespacesAndNewlines) == ""  {
       return
}

Thanks for reporting it!