Question

I have this regex jquery:

var regx = /^[\w ._-]+$/;

and

if( $($input).val().match(regx)) {
                                alert('it works fine');
                                }
else
   {
    alert('it does not works fine');
   return false
   e.preventDefault();
    }

Why if I write in input sth like e.j.:

Mary-Michael

I get an alert with it does not works fine, but If I write:

Mary.Michael or Mary_Michael

I get it works fine

I want add – hyphen to regex. Thank you

Answer 1

Hyphens have a special meaning in regex (like [0-9]) so you should escape it. You ought to escape the period, too, for that matter:

var regx = /^[\w \._\-]+$/;