function isArrayOfArrays(rows: unknown[] | unknown[][]): rows is unknown[][] { return !rows.some((row) => !Array.isArray(row)); } export function convertRowsToObjects( rows: unknown[] | unknown[][], columns: string[] ): Record[] { let checkedRows: unknown[][]; if (isArrayOfArrays(rows)) { checkedRows = rows; } else { checkedRows = [rows]; } return checkedRows.map((row) => { const rowObj = {} as Record; columns.forEach((column, columnIndex) => { rowObj[column] = row[columnIndex]; }); return rowObj; }); }