A
Andy Dingley
It only improves usability if you reply on client side code.
What do you mean ? "Improving usability" here is about correcting user
errors as close to the erroneous field as possible, without batching
them up and rejecting a whole page. No-one is suggesting _relying_ on
this client-side testing for the final validation. We'll still validate
the submitted version on the server, because of the risk of faked
submissions, as much as anything.
I personally thing that is, well dumb.
Why?