validate2.erl

validate2.erl

validate_elements(ListOfLists) ->
    lists:reverse(lists:foldl(fun(ValidationResult, Acc) ->
                    case ValidationResult of
                        ok -> Acc;
                        Else -> [Else | Acc]
                    end
            end, [], lists:map(fun(Element) -> apply_validators(Element) end, ListOfLists))).