An application can test whether the currently signed-in user is a registered administrator for the application. An administrator is a user who can access the Administration Console for the application. You can use the Administration Console to manage which users have administrator status.
True if the current user is an administrator for the application.
Tip: An easy way to restrict access to a part of your application to administrators is to use the
login: admin configuration element for the URL handler. See Configuring an App.