code: function(row) {
      var elRow = this.getTrEl(row) || this.getLastTrEl();
      if(elRow && (elRow.cells.length > 0)) {
          return elRow.cells[elRow.cells.length-1];
      }
      return null;
  }
docs: Returns DOM reference to the last TD element in the DataTable page (by default),
  the first TD element of the optionally given row, or null.
  
  @method getLastTdEl
  @return {HTMLElement} Reference to last TD element.