How to use shortcutDetails (to get the id of the file the shortcut point at) in Google Apps Script-CodePudding

I'm trying to copy documents from a folder, and inside my folder I have some shortcuts. I want to copy the original file in my new folder so I'm trying to get the id of the real file using the id of the shortcut.

I tried to use shortcutDetails but I'm not sure how it works.

Here is my code:

function TestFunction() {
  var ss=SpreadsheetApp.getActiveSpreadsheet();
  var sh = ss.getSheetByName("test");
  var id = "My shortcut Id";
  var file = DriveApp.getFileById(id);
  Logger.log(file.getMimeType());
  var a = file.shortcutDetails.targetId();
  Logger.log(a);
}

This is the result when I put my shortcut id:

CodePudding user response：

In your script, how about the following modification?

From:

var a = file.shortcutDetails.targetId();

To:

var a = file.getMimeType() == MimeType.SHORTCUT ? file.getTargetId() : id;

By this modification, when file is the shortcut file, the target file ID is returned. When file is not the shortcut file, id is returned.

Reference:

getTargetId()