Including a hyphen in a regex character bracket?

Question

$.validator.addMethod(\'AZ09_\', function (value) { 
    return /^[a-zA-Z0-9.-_]+$/.test(value); 
}, \'Only letters, numbers, and _-. are allowed\');

Answer 1

The \- maybe wasn't working because you passed the whole stuff from the server with a string. If that's the case, you should at first escape the \ so the server side program can handle it too.

• In a server side string: \\-
• On the client side: \-
• In regex (covers): -

Or you can simply put at the and of the [] brackets.