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

Chapter 3 - Values / Value Class Definitions

Class

A value of class Class is a class identifier. A class identifier is a reserved word that specifies the class to which an object or value belongs. The Class property of an object contains a class identifier value.

LITERAL EXPRESSIONS

string
integer
real
boolean
class

PROPERTY

Class

The class identifier for the object. This property is read-only, and its value is always class.

ELEMENTS

None

OPERATORS

The operators that take class identifier values as operands are &, =, �, and As.

The operator As takes a value of one class and coerces it to a value of a class specified by a class identifier. For example,

"1.5" as real

coerces a string into the corresponding real number, 1.5. For more information about coercing values, see Chapter 6, "Expressions."

COERCIONS SUPPORTED

AppleScript supports coercion of a class identifier to a single-item list.