code: function (e) {
                  var element = e.target;
                  var sortableElement = element.isSortable === true ? element : findSortable(element);
                  element = findDragElement(sortableElement, element);
                  if (!dragging || !_listsConnected(sortableElement, dragging.parentElement) || addData(sortableElement, '_disabled') === 'true') {
                      return;
                  }
                  var options = addData(sortableElement, 'opts');
                  if (parseInt(options.maxItems) && _filter(sortableElement.children, addData(sortableElement, 'items')).length >= parseInt(options.maxItems) && dragging.parentElement !== sortableElement) {
                      return;
                  }
                  e.preventDefault();
                  e.stopPropagation();
                  e.dataTransfer.dropEffect = store(sortableElement).getConfig('copy') === true ? 'copy' : 'move';
                  debouncedDragOverEnter(sortableElement, element, e.pageY);
              }
docs: Handle dragover and dragenter events on draggable items