Availability
Flash Player 5.

Usage

 for(  init; condition; next  ) { 
 	statement(s);    
 } 

Parameters
init An expression to evaluate before beginning the looping sequence, typically an assignment expression. A var statement is also permitted for this parameter.

condition An expression that evaluates to true or false . The condition is evaluated before each loop iteration; the loop exits when the condition evaluates to false .

next An expression to evaluate after each loop iteration; usually an assignment expression using the ++ (increment) or -- (decrement) operators.

statement(s) An instruction or instructions to execute within the body of the loop.

Description
Action; a loop construct that evaluates the init (initialize) expression once, and then begins a looping sequence by which, as long as the condition evaluates to true , statement is executed and the next expression is evaluated.

Some properties cannot be enumerated by the for or for..in actions. For example, the built-in methods of the Array object ( Array.sort and Array.reverse ) are not included in the enumeration of an Array object, and movie clip properties, such as _x and _y , are not enumerated.

Example
The following example uses for to add the elements in an array:

 for(i=0; i<10; i++) { 
 	array [i] = (i + 5)*10; 
	trace(array[i]);
 } 

The following results are displayed in the Output window:

50
60
70
80
90
100
110
120
130
140

The following is an example of using for to perform the same action repeatedly. In the code below, the for loop adds the numbers from 1 to 100:

var sum = 0;
	for (var i=1; i<=100; i++) {
		sum = sum + i;
	}

See also
++ (increment) , -- (decrement) , for..in , var