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

var Direction=SpreadsheetApp.Direction;
var aLast =ss.getRange("A"+(ss.getLastRow()+1)).getNextDataCell(Direction.UP).getRow();

According to the documentation, getNextDataCell is similar to go to the given range and pressing ctrl (command) + the arrow key. So this works because it goes to the las possible row, adds one (arrow down) and then ctrl + UP, so it will definitely get the last row with some content. The only thing that could be improved is to check if last cell + 1 is greater than max cell, and make an specific logic for that case.