Form with validation
Required item:
Select item
Error {"required":true}
Submit
Errors: {"required":[{"$validators":{},"$asyncValidators":{},"$parsers":[],"$formatters":[],"$viewChangeListeners":[],"$untouched":true,"$touched":false,"$pristine":true,"$dirty":false,"$valid":false,"$invalid":true,"$error":{"required":true},"$name":"requiredSelect","$options":{}}]}