Language Guide

APPENDIX A
The Language at a Glance
Constants 305
Constants A
Table A-10 lists constants defined by AppleScript.
As with all other identifiers, constants are not case sensitive. For example,
false, False, and FALSE are all treated as the same constant.
Table A-9 Predefined variables
Identifier Class Description
it Reference The default target. For more information, see
Chapter 7, “Control Statements.”
me Reference The current script (used within Tell statements to
refer to handlers or properties of the current script).
For more information, see Chapter 7, “Control
Statements,” and Chapter 8, “Handlers.”
pi Real The value  (roughly 3.14159).
result Any class The result returned by the most recently executed
command or the most recently evaluated expres-
sion. If the most recently executed command did
not return a result, then the value of result is
undefined.
return String A return character.
space String A space character.
tab String A tab character.
Table A-10 Constants defined by AppleScript
Identifier Meaning
Attributes specified in Considering and Ignoring statements
application
responses
If ignored, AppleScript doesn’t wait for responses from
application commands before proceeding to the next
statement in a script and ignores any results or errors
returned.
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