ActionScript 2.0 Language Reference - Adobe Help and Support

Operands
expression1 : Object - Numbers, strings, or variables.
expression2 : Object - Numbers, strings, or variables.
Returns
Boolean - The result of the comparison.
See also
>= greater than or equal to operator
++ increment operator
++expression
expression++
A pre-increment and post-increment unary operator that adds 1 to expression . The
expression can be a variable, element in an array, or property of an object. The preincrement
form of the operator (++expression) adds 1 to expression and returns the
result. The post-increment form of the operator (expression++) adds 1 to expression and
returns the initial value of expression (the value prior to the addition).
The pre-increment form of the operator increments x to 2 (x + 1 = 2) and
returns the result as y:
var x:Number = 1;
var y:Number = ++x;
trace("x:"+x); //traces x:2
trace("y:"+y); //traces y:2
The post-increment form of the operator increments x to 2 (x + 1 = 2) and returns the
original value of x as the result y:
var x:Number = 1;
var y:Number = x++;
trace("x:"+x); //traces x:2
trace("y:"+y); //traces y:1
Availability: ActionScript 1.0; Flash Player 4
Operands
expression : Number - A number or a variable that evaluates to a number.
Returns
Number - The result of the increment.
168 ActionScript language elements