About Casting - MACROMEDIA FLASH 8-LEARNING ACTIONSCRIPT 2.0 IN FLASH Manual

The following example presents another way to loop over objects. In this example, an object is
created and looped over using a
panel:
var myObj:Object = {var1:"One", var2:"Two", var3:18, var4:1987};
var i:String;
for (i in myObj) {
trace(i + ": " + myObj[i]);
}
//outputs the following:
/*
var1: One
var2: Two
var3: 18
var4: 1987
*/
For information on creating for loops, see
information on for..in loops, see
objects, see Chapter 7, "Classes," on page

About casting

ActionScript 2.0 lets you cast one data type to another. Casting an object to a different type
means you convert the value that the object or variable holds to a different type.
The results of a type cast vary depending on the data types involved. To cast an object to a
different type, you wrap the object name in parentheses (
the new type. For example, the following code takes a Boolean value and casts it to an integer.
var myBoolean:Boolean = true;
var myNumber:Number = Number(myBoolean);
For more information on casting, see the following topics:
"About casting objects" on page 111
110 Data and Data Types
loop, and each property appears in the Output
for..in
Chapter 5, "Using for loops," on page
"Using for..in loops" on page
225.
158. For more information on
) and precede it with the name of
()
157. For