How do I know if spreadsheet cells are merged using google apps script

Question

In a Google docs spreadsheet. If cells A1 & A2 are merged, is there a way to confirm they are merged, using google apps script?

There is a merge function in GAS https://developers.google.com/apps-script/class_range#merge

But there is no function or example that shows how to check if cells are merged.

getValues etc just returns an empty string for the cell. e.g. this does not work.

function testMerge() {

  var spreadsheet = SpreadsheetApp.openById('Z3ppTjxNUE........'); 
  var sheet = spreadsheet.getSheets()[0];
  var range = sheet.getRange("A3:A4");
  var values = range.getValues();
  var formulas = range.getFormulasR1C1();
  var formulasA1 = range.getFormulas();

  range = sheet.getRange("A4");
  range.setValue("a");

  range = sheet.getRange("A3:A4");
  var values2 = range.getValues();
  var formulas2 = range.getFormulasR1C1();
  var formulasA12 = range.getFormulas();


  var count = range.getHeight();


}

Answer 1

Yes, now you can use isPartOfMerge to check.

And for anyone wants to get the value of merged cell:

var value = (cell.isPartOfMerge() ? cell.getMergedRanges()[0].getCell(1,1) : cell).getValue();

Hope it help.