Determining the last row in a single column

Question

I have a sheet with data in cols A through H.

I need to determine the last row in column A that contains data (it\'s all conti

Answer 1

I am using getDataRange() followed by getNumRows(). The first function

Returns a Range corresponding to the dimensions in which data is present

and the second function

Returns the number of rows in this range.

var ss = SpreadsheetApp.getActiveSpreadsheet();
var ws = ss.getActiveSheet();
var lastRow = ws.getDataRange().getNumRows();

P.S I hope this works for all cases.