On Thursday, 1 May 2014 at 13:33:50 UTC, Marc Schütz wrote:
IMO the client shouldn't do any validation, unless you can really, really trust it.
Client side validation is about better feedback. Today's browsers are fast enough for doing field validation for every keystroke.
4a. if transaction or data is invalid fails, send errors to the client
Without client side validation you need more detailed errors from the server.
