MACROMEDIA FLASH 8-LEARNING ACTIONSCRIPT 2.0 IN FLASH - Page 756

756 Best Practices and Coding Conventions for ActionScript 2.0
Use trace statements
Use trace statements in your documents to help you debug your code while authoring the
FLA file. For example, by using a
trace statement and for loop, you can see the values of
variables in the Output panel, such as strings, arrays, and objects, as the following
example shows:
var dayArr:Array = ["sun", "mon", "tue", "wed", "thu", "fri", "sat"];
var numOfDays:Number = dayArr.length;
for (var i = 0; i<numOfDays; i++) {
trace(i+": "+dayArr[i]);
}
This displays the following information in the Output panel:
0: sun
1: mon
2: tue
3: wed
4: thu
5: fri
6: sat
Using a trace statement is an efficient way to debug your ActionScript 2.0.
You can remove your
trace statements when you publish a SWF file, which makes minor
improvements to playback performance. Before you publish a SWF file, open Publish Settings
and select Omit Trace Actions on the Flash tab. For more information on using a trace, see
trace function in the ActionScript 2.0 Language Reference.
The Debugger tool is also useful for debugging ActionScript code. For more information, see
Chapter 18, “Debugging Applications.”