How to get the first cell in the active row? - google-apps-script

Question

If I want my Google Apps Script app get the current selected row in a spreadsheet, I use something like this:
function getCurrentRow() {
var currentRow = SpreadsheetApp.getActiveSheet().getActiveSelection().getRowIndex();
return currentRow;
}
But what if I want to get the first cell in this row (to put a comment in it), how do I proceed?

Answer 1

You can use offset to get a range relative to the active range.
function getFirstCellInRow() {
var sheet = SpreadsheetApp.getActiveSheet();
var activeCell = sheet.getActiveCell();
var firstCell = activeCell.offset(0, 1-activeCell.getColumn());
return firstCell;
}
Or just use getRange(A1notation), starting with what you had:
function getFirstCellInRow2() {
var sheet = SpreadsheetApp.getActiveSheet();
var currentRow = sheet.getActiveSelection().getRowIndex();
return sheet.getRange("A"+currentRow);
}
To write into the first cell in the row:
getFirstCellInRow().setValue('Tada');

Answer 2

There is a getCell() method you can use ( https://developers.google.com/apps-script/reference/spreadsheet/range#getCell(Integer,Integer) )
function getFirstCell() {
var firstCell= SpreadsheetApp.getActiveSheet().getActiveSelection().getCell(1,1);
return firstCell;
}

Answer 3

The following script will insert "My Info" in the first row available in column A.
function FirstCellColumnA() {
// replace with destination ID
var s = SpreadsheetApp.openById('spreadsheetID');
// replace with destination Sheet tab name
var ss = s.getSheetByName('sheetname');
// In Column A first ROW Available ss.getLastRow()+1 = find the
// first row available, 1 = start in column 1, 1 = rows to start,
// 1 = column where to put the data.
ss.getRange(ss.getLastRow() + 1, 1, 1, 1).setValue('My Info');
}
I hope this help you.