title: Compare 2 google worksheets with apps scripts
body: <p>I'm just making sure there is not an easier way to do this.  I need to copy a worksheet from one g-sheet to another. Not a big deal.  Then I have to compare that worksheet, to another worksheet that is a week older. There will be duplicate rows, I need to only delete the duplicate rows from the current sheet. I can't find any compare sheet in the API.  Do I have to loop through all the rows to achieve this?</p>
  
  <p>Thanks! Any suggestions would be great!</p>
  
  <p>Rudy</p>