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

Answer 1

If anyone here needs a work around for this problem, I wrote a little tool that takes most of the donkey work out of making a key value file of all merged cells from exported HTML.

You can find it here: https://github.com/martinhbramwell/CellMergeWorkAround

I wrote it because I have a small project that depends on being able to fully clone ranges from one spreadsheet to another. Obviously, I have added my vote to wanting the issue fixed.

(Note: I would have added this as a comment to the correct answer, but lack the necessary points.)

Answer 2

Maybe it's a bit late answer since I didn't see this problem for new version of google spreadsheets. But, I still use old spreadsheets version for my project. So I was needed somehow figure it out.

I need to copy format of previous column for new columns. This is part of code below:

      // trying to find first column with week day (white background)
      var background = '';
      for(var columnIndex = 3; columnIndex<=columnLetters.length; columnIndex++){
        background = sheet.getRange(1, columnIndex).getBackground();
        if(background == 'white' || background == ''){
          tmpRange = columnLetters[columnIndex]+':'+columnLetters[columnIndex];
          Logger.log('tmpRange: '+tmpRange);
          // workaround to be able to copy format if there is some merged cells
          try{
            Logger.log('try');
            // copy format of previous column
            sheet.getRange(tmpRange).copyTo(
              sheet.getRange('B1'), {formatOnly:true}
            );
          }catch(e) {
            Logger.log('continue');
            continue;
          }
          Logger.log('break');
          break;
        }
      }

So, the most important part here is:

try{
  Logger.log('try');
  // copy format of previous column
  sheet.getRange(tmpRange).copyTo(
    sheet.getRange('B1'), {formatOnly:true}
  );
}catch(e) {
  Logger.log('continue');
  continue;
}

If it's impossible to copy those cells it just continue to search others.

Answer 3

For those like me who didn't know the .breakapart() method to unmerge cells: https://developers.google.com/apps-script/class_range#breakApart

Thanks to Henrique for the tip !