title: Google Apps Script trigger - run whenever a new file is added to a folder
body: <p>I want to execute a google apps script whenever a <em>new</em> file is added to a specific folder.</p>
  <p>Currently I'm using a run-every-x-minutes clock trigger, but I only need to run the script whenever I add a file to a folder. Is there a way to do this?</p>
  <p>The same as <a href="https://stackoverflow.com/questions/49712446/run-a-google-script-when-a-file-is-added-to-a-folder">this</a> question - which is now almost 3 years old. The comment below the question states that:</p>
  <blockquote>
  <p>There's not a trigger for that, if that's what you're hoping. How are
  things getting into the folder, and do you have any control over that?
  – Jesse Scherer Apr 8 '18 at 3:02</p>
  </blockquote>
  <p>I wonder if this comment is still valid, and if it is, then if there's a workaround.</p>