Flash / Flex / ActionScript/Array/copy

Copying Objects

   <source lang="java">

package{

 import flash.display.Sprite;
 
 public class Main extends Sprite{
   public function Main(){
       var arrayA:Array = new Array("a", "b", "c", "d");
       var arrayB:Array = arrayA;
       arrayB.push("e", "f", "g", "h");
       trace(arrayA.length); // Outputs 8
   }
 }

}

       </source>
   
  

If you want to create a copy of the array, you can create a new array and use a for statement to copy each item from arrayA to arrayB

   <source lang="java">

package{

 import flash.display.Sprite;
 
 public class Main extends Sprite{
   public function Main(){
       var arrayA:Array = new Array("a", "b", "c", "d");
       var arrayB:Array = new Array();
       for(var i:int = 0; i < arrayA.length; i++) {
           arrayB[i] = arrayA[i];
       }
       arrayB.push("e", "f", "g", "h");
       trace(arrayA.length); // Outputs 4
       trace(arrayB.length); // Outputs 8
   }
 }

}

       </source>