code: function hideToolTip(e) {
      var cell = _grid.getCellFromEvent(e);
      if (cell) {
        var $node = $(_grid.getCellNode(cell.row, cell.cell));
        if ($node.data('bs.tooltip')) {
          $node.tooltip('hide');
        }
      }
    }
docs: Handle mouse entering grid cell to add/remove tooltip.
  
  @param {jQuery.Event}
  e - The event