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Question

I would like to repeat a piece of code with a For Loop every time it sees a blank cell in Column N.

I am trying the below code but cant figure out where I am going wrong

  function CopyCellBelow() {
  // Get array of values in the search Range
  var sheet = SpreadsheetApp.getActive();
  var lastRow = sheet.getLastRow();
  var searchRange = sheet.getRange(14,2, lastRow-1);
  var rangeValues = searchRange.getValues();

for ( j = 0 ; j < lastRow - 1; j++){
  if(rangeValues[j] === ""){
    sheet.getRange(j+14);// Column N
    
    sheet.getRange('N2').activate();
    sheet.getRange('N3').copyTo(spreadsheet.getActiveRange(), SpreadsheetApp.CopyPasteType.PASTE_NORMAL, false);
    sheet.getCurrentCell().getNextDataCell(SpreadsheetApp.Direction.DOWN).activate();
    sheet.getCurrentCell().offset(1, 0).activate();
    sheet.getCurrentCell().offset(1, 0).copyTo(spreadsheet.getActiveRange(), SpreadsheetApp.CopyPasteType.PASTE_NORMAL, false);
    sheet.getRange('N2').activate();
    sheet.getCurrentCell().getNextDataCell(SpreadsheetApp.Direction.DOWN).activate();
    sheet.getCurrentCell().offset(1, 0).activate();
    sheet.getCurrentCell().offset(1, 0).copyTo(spreadsheet.getActiveRange(), SpreadsheetApp.CopyPasteType.PASTE_NORMAL, false);
    sheet.getRange('N1').activate();
   
    
  }else if (rangeValues[j] === "if cell has data"){
    //do nothing    
   }}};

In the image below you can see the yellow cells have the expected result which is copying the cell directly below

The next 3 blanks cells should have a 4 placed in them

Answer 1

See if this helps

const copyCellBelow = () => {

const sheet = SpreadsheetApp.getActive().getSheetByName('Sheet1'); //change sheet name if needed
const range = sheet.getRange(1, 14, sheet.getLastRow(), 1); //change range if needed
const data = range.getValues().map( (cell, i, val) => (cell[0]) ? cell : val[i 
+ 1])
range.setValues(data);
}