XML and Array issue

Question

I've created an array that loads data from an XML file. Now,
when a button is pressed I want this array to delete all previous
elements found in the array and add new elements coming from the
same XML file. So I created a function called arrayUpdate, here it
is...
function arrayUpdate():Void{
myArray.splice(myArray.length);
When the button is pressed it first calls this arrayUpdate
function and then calls the other function which loads the specific
data from the XML file. But I can't get it to work. It just keeps
adding new data to the old data. Did I do something wrong
here?

Answer 1

function arrayUpdate():Void {
delete myArray;
var myArray:Array = new Array();
}