Interface FolderIterator

An object that allows scripts to iterate over a potentially large collection of folders. Folder iterators can be acccessed from DriveApp, a File, or a Folder.

// Log the name of every folder in the user's Drive.
var folders = DriveApp.getFolders();
while (folders.hasNext()) {
  var folder = folders.next();
  Logger.log(folder.getName());
}