Inside Macintosh: AppleScript Language Guide / Part 2 - AppleScript Language Reference

Chapter 3 - Values / Value Class Definitions

Data

A value of class Data is data returned by an application (in response to a command) that does not belong to any of the other value classes defined in this section. A value of class Data is raw data that can only be stored in a variable.

PROPERTY

Class

The class identifier for the object. This property is read-only,
and its value varies depending on the application.

ELEMENTS

None

OPERATORS

The operators that can take values of class Data as operands are = and �.

COERCIONS SUPPORTED

AppleScript supports coercion of a Data value to a single-item list.