Google Spreadheets Scripts: check if cell is empty

Question

I want to input a variable in a cell only if the cell is empty. The if statement, however, does not work. Any advice?

var ss=SpreadsheetApp.getActiveSpreadsh         


        

Answer 1

Try:

function myFunction() {
  var ss=SpreadsheetApp.getActiveSpreadsheet();
  var s=ss.getSheetByName('odpovědi')
  var lr=s.getLastRow()  
  var ax=s.getRange(lr, 10).getValue();
     if(ax == ""){
        ax = "foo";
        s.getRange(lr, 10).setValue(ax);
  }
  }