[thelist] js testing for empty fields

Tom Dell'Aringa pixelmech at yahoo.com
Thu Feb 13 09:48:01 CST 2003

--- Kae Verens <kverens at contactjuggling.org> wrote:

> null means "has no value", but "" means "is an empty string" -
> there is
> a difference.

Right, that much I knew, but I'm wondering what the practical
difference is. I can't remember my validations ever failing when
simply testing for value="", is there a case where it would?

> you could also probably get away with this:
> if(myForm.elements['myField'].value.length<1)

Would this for sure cover both cases?

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