title: get difference between 2 dates in google script
body: <p>I'm trying to get the difference between the 2 dates in googlescript. However it doesn't seem to be working. Does anyone seem to know why? My user defined variables are working it's just when i get the difference between the 2 the result is like 4.28E8 whereas the answer is supposed to be like 40. Is there a way to convert the date into a number then convert it back into a date?</p>
  
  <pre><code> ddate = output.getRange(lRow2,2,1,1).getValue() - output.getRange(2,1,1,1).getValue()
  </code></pre>