title: How to save multiple file upload in a specific folder?
body: <p>I have created a custom form on Google Form which contains an Upload File Question (allowing multiple files). I'm trying to run a script when submitting the form that creates a folder into a specific destination in Drive and that it saves the files uploaded in this one. But I have no idea how to retrieve the ID of the files uploaded and move them into the new folder.
  Thank you</p>
  
  <p>I managed to create the new folder, but I'm not able to select the uploaded file and save them (or move them) to the target folder. I'm not posting the creating folder code.</p>
  
  <pre><code>function onFormSubmit(e) {
    var form = FormApp.getActiveForm();
    var formResponses = form.getResponses();
    var formResponse = formResponses[formResponses.length-1];
    var itemResponses = formResponse.getItemResponses();
    var itemResponse = itemResponses[1];
    var uploadedfile = itemResponse.getResponse();
  
    //now??
  }
  </code></pre>
  
  <p>I would like to get the ID of the file but using the .getItem().getID() method I get something like 1.148501776E9
  Also how can I loop through the uploaded files?</p>