Description:
+identifier is a read-only property of the widget object. It is the unique string identifier that identifies a widget after it has been installed into a device. The string returned is the value of the Identifier key defined in the widget property list file (info.plist).
For more information on the info.plist file, see Widget component files.
Syntax:
+[String] widget.identifier+
or
+[String] window.widget.identifier+