Regexp - Allow chinese word or N/A ONLY

Question

/^[\\u0391-\\uFFE5\\.\\-\\,\\(\\)]*$/

Sorry, new to regex. Had done this to allow only Chinese character.

Then after i Changed

Answer 1

You need to use a capturing or non-capturing group.

/^(?:[\u0391-\uFFE5.,()-]|N\/A)*$/