User Guide

158 Chapter 9: Constants
TRUE
Usage
-- Lingo syntax
TRUE
// JavaScript syntax
true
Description
Constant; represents the value of a logically true expression, such as 2 < 3. It has a traditional
numerical value of 1, but any nonzero integer evaluates to
TRUE in a comparison.
Example
This statement turns on the soundEnabled property by setting it to TRUE:
-- Lingo syntax
_sound.soundEnabled = TRUE
// JavaScript syntax
_sound.soundEnabled = true;
See also
FALSE, if
VOID
Usage
-- Lingo syntax
VOID
// JavaScript syntax
null
Description
Constant; indicates the value VOID.
Example
This statement checks whether the value in the variable currentVariable is VOID:
-- Lingo syntax
if currentVariable = VOID then
put("This variable has no value")
end if
// JavaScript syntax
if (currentVariable == null) {
put("This variable has no value");
}
See also
voidP()