gistfile1.txt

const FOLDER_ID = ''
const onFormSubmit = ({ response } = {}) => {
  try {
    const files = response
      .getItemResponses()
      .filter((itemResponse) => itemResponse.getItem().getType().toString() === 'FILE_UPLOAD')
      .map((itemResponse) => itemResponse.getResponse())
      .reduce((a, b) => [...a, ...b], []);
    if (files.length > 0) {
      const subfolderName = response.getItemResponses()[0].getResponse()//ดึงจากคำถามจากช่องกรอกชื่อ
      const parentFolder = DriveApp.getFolderById(FOLDER_ID);
      var subfolder = parentFolder.getFoldersByName(subfolderName);
      if(subfolder.hasNext()) subfolder = subfolder.next()
      else subfolder = parentFolder.createFolder(subfolderName)
      files.forEach((fileId) => {
        DriveApp.getFileById(fileId).moveTo(subfolder);
      });
    }
  } catch (f) {
    Logger.log(f);
  }
};