MACROMEDIA FLASH 8-ACTIONSCRIPT 2.0 LANGUAGE - Modulo Assignment Operator

178 ActionScript language elements
The first trace returns 2, rather than 12/5 or 2.4, because the modulo (%) operator returns
only the remainder. The second trace returns 0.0999999999999996 instead of the expected
0.1 because of the limitations of floating-point accuracy in binary computing.
See also
/ division operator, round (Math.round method)
%= modulo assignment operator
expression1 %= expression2
Assigns expression1 the value of expression1 % expression2. The following two
statements are equivalent:
x %= y;
x = x % y;
Availability: ActionScript 1.0; Flash Player 4 - In Flash 4 files, the % operator is expanded in
the SWF file as
x - int(x/y) * y and may not be as fast or as accurate in later versions of
Flash Player.
Operands
expression1 : Number - A number or expression that evaluates to a number.
expression2 : Number - A number or expression that evaluates to a number.
Returns
Number - The result of the arithmetic operation.
Example
The following example assigns the value
4 to the variable x:
var x:Number = 14;
var y:Number = 5;
trace(x = y); // output: 4
See also
% modulo operator