How to get some values from a function

Question

i want to test1 function to return the value of ax and az and update xx and xz to reuse it but itseems xx and xz neverchanging..i am a newbie  but have some knowledge confuse how to return values in  function
import flash.events.Event;
var xx=1
var xz=10
addEventListener(Event.ENTER_FRAME,aa)
function aa(e:Event ){
test1(xx,xz)}
function test1(ax:Number,az:Number  ){
  ax=ax+10;
  az=az+10;
trace(ax)
trace(az)

Answer 1

Basic data types are always pass by value. This means to do it with primitive data types you have to do something like this:
function test1(ax:Number,az:Number  ):Object {
  ax=ax+10;
  az=az+10;
trace(ax)
trace(az)
  return {xx: az, xz: az};
and then after you call your function like this
var returnObject:Object = test1(xx, xz);
and then add these lines:
xx = returnObject.xx;
xz = returnObject.xz;