With Actionscript 3.0 the XML Class seems to have deeply changed.
The XML class has been moved to the package flash.xml and its name has been changed to XMLDocument to avoid the conflict with the new XML Class, which has been enriched with the ECMAScript for XML.
I’ll begin with saying that the load() and onLoad() methods of AS 2.0 have been removed, therefore we now use the URLLoader and URLRequest classes to load an external XML file.
You add a listener to the instance of URLLoader and at the COMPLETE event, the XML parsing begins, hence you pass the data of the URLLoader’s instance to a new instance of the XML class, then you create a new instance of the XMLDocument class, which helps parsing the XML instance.
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