I am trying to validate pin number ( 6 digits always). I am using,
[0-9]{6}
Which does the job but it makes field compulsory.
How to make it optional?
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I am trying to validate pin number ( 6 digits always). I am using,
[0-9]{6}
Which does the job but it makes field compulsory.
How to make it optional?
^ist string start,$is string end, and the()?says: My content exactly once or nothing.However, if I read the spec correctly, and a quick test in FF4 doesn’t deceive me, this might not be necessary, as long as you don’t add the
requiredattribute, too (in which case it would be an error).