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JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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How to Implement CEP Validation LogicAsked by waldomiro on September 25, 2015 at 01:44 AMSobre o CEP queria fazer assim será possivel ?exemplo http://matheuspiscioneri.com.br/blog/preenchimento-automatico-do-endereco-a-partir-do-cep/
Unfortunately, this cannot be implemented in Jotform since this is a complex validation. You will need to download the full source code of the form and then implement the scripts for the logic for it to work.
Do let us know if you need further assistance.