regex in swift is not working with this example?

Question

I am trying to use Regex expressions but this does not work and I don\'t understand why. The println is not showing up in the output. I followed this tutorial to us

Answer 1

In this case, you do not need to use (/ ..... /ig)$, so try this:

   if let match = textField.text.rangeOfString("([a-z]+)|([0-9]+)", options: .RegularExpressionSearch) {
                println("\(match) is bla bla bla...")
            }

It will be work and return the range of the first occurrence of a given string