236 Chapter 12: ActionScript Dictionary
See also
with
– (minus)
Availability
Flash Player 4.
Usage
(Negation) -expression
(Subtraction) expression1 - expression2
Parameters
None.
Returns
Nothing.
Description
Operator (arithmetic); used for negating or subtracting.
Usage 1: When used for negating, it reverses the sign of the numerical
expression.
Usage 2: When used for subtracting, it performs an arithmetic subtraction on two numerical
expressions, subtracting
expression2 from expression1. When both expressions are integers,
the difference is an integer. When either or both expressions are floating-point numbers, the
difference is a floating-point number.
Example
Usage 1: The following statement reverses the sign of the expression 2 + 3.
-(2 + 3)
The result is -5.
Usage 2: The following statement subtracts the integer 2 from the integer 5.
5 - 2
The result is 3, which is an integer.
Usage 2: The following statement subtracts the floating-point number 1.5 from the floating-point
number 3.25.
3.25 - 1.5
The result is 1.75, which is a floating-point number.
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