Automatisk inkrementering av ID-kolumner i Google Kalkylark

function myFunction() {

  var AUTOINC_COLUMN = 0;
  var HEADER_ROW_COUNT = 1;
  
  var spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
  var worksheet   = spreadsheet.getSheetByName("Sheet1");
  var rows        = worksheet.getDataRange().getNumRows();
  var vals        = worksheet.getSheetValues(1, 1, rows+1, 2);
  
  for (var row = HEADER_ROW_COUNT; row < vals.length; row++) {
    try {
      var id = vals[row][AUTOINC_COLUMN];
      Logger.log(id);Logger.log((""+id).length ===0);
      if ((""+id).length === 0) {
        // Here the columns & rows are 1-indexed
        worksheet.getRange(row+1, AUTOINC_COLUMN+1).setValue(row);
      }
    } catch(ex) {
      // Keep calm and carry on
    }
  }
}

function myFunction() {

  var AUTOINC_COLUMN = 0;
  var HEADER_ROW_COUNT = 1;
  
  var spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
  var worksheet   = spreadsheet.getSheetByName("Sheet1");
  var rows        = worksheet.getDataRange().getNumRows();
  var vals        = worksheet.getSheetValues(1, 1, rows+1, 2);
  
  for (var row = HEADER_ROW_COUNT; row < vals.length; row++) {
    try {
      var id = vals[row][AUTOINC_COLUMN];
      Logger.log(id);Logger.log((""+id).length ===0);
      if ((""+id).length === 0) {
        // Here the columns & rows are 1-indexed
        worksheet.getRange(row+1, AUTOINC_COLUMN+1).setValue(row-1);
      }
    } catch(ex) {
      // Keep calm and carry on
    }
  }
}

var vals        = worksheet.getSheetValues(1, 1, rows+1, 2);