Question

I have this regular expression to help me validate a form input.

var nrExp = /^\d{6}\-\d{4}$/;

This allows only 10 digits, where the last 4 digits are separated with a “minus sign”.

    012345-6789

I need to make it also allow it without the minus-sign AND with a space instead of a minus-sign:

   0123456789
   012345 6789

How can I remake this regexp to allow what I want?

Thanks

Answer 1

Sure. You just want to make the minus optional, along with a couple of other characters.

Try this one:

var nrExp = /^\d{6}(\-| )?\d{4}$/;

Notice the ? after the (\-| ). This allows that match portion to be optional.