function _updateMergeStartIndex(tableData, startColIndex, endColIndex) {
  tableData.forEach(rowData => {
    rowData.slice(endColIndex + 1).forEach(cellData => {
      if (util.isExisty(cellData.colMergeWith) && cellData.colMergeWith >= startColIndex) {
        cellData.colMergeWith = endColIndex + 1;
      }
    });
  });
}
function _updateMergeStartIndex(tableData, startColIndex, endColIndex) {
  tableData.forEach(rowData => {
    rowData.slice(endColIndex + 1).forEach(cellData => {
      if (util.isExisty(cellData.colMergeWith) && cellData.colMergeWith >= startColIndex) {
        cellData.colMergeWith = endColIndex + 1;
      }
    });
  });
}
function _updateMergeStartIndex ( tableData , startColIndex , endColIndex ) { tableData . forEach ( rowData => { rowData . slice ( endColIndex + 1 ) . forEach ( cellData => { if ( util . isExisty ( cellData . colMergeWith ) && cellData . colMergeWith >= startColIndex ) { cellData . colMergeWith = endColIndex + 1 ; } } ) ; } ) ; }
Update row merge start index to merged cell.
@param {Array.<Array.<object>>} tableData - table data
@param {number} startColIndex - start col index
@param {number} endColIndex - end col index
@private
Update row merge start index to merged cell .
Update merge start index