SP.ListDataValidationExceptionValue.itemFailure property (sp.js)
Gets an SP.ListDataValidationFailure object that contains information about a list item validation failure.
Applies to: apps for SharePoint | SharePoint Foundation 2013 | SharePoint Server 2013
var value = SP.ListDataValidationExceptionValue.get_itemFailure ()
Return value
Type: SP.ListDataValidationFailure