Flash / Flex / ActionScript/Array/unshift

Arrays can call unshift() to add any number of elements to the front of the array just like push().

 

package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var queue:Array = new Array();
        queue.push("A");
        queue.push("J");
        queue.push("W");
        queue.unshift("J", "D");
        trace(queue); // Displays: Jim,Doro,James,Will
    }
  }
}

Prepending Elements to the Beginning of an Array: the unshift() method

 
package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var aEmployees:Array = ["A", "P", "C", "H"];
        aEmployees.unshift("R", "H", "L");
        trace(aEmployees.toString());
    }
  }
}

unshift( )method adds one or more elements to the beginning of the array: theArray.unshift(item1, item2,...itemn);

 

package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var versions:Array = new Array(  );
        versions[0] = 6;
        versions.unshift(5);      // versions is now [5, 6]
        versions.unshift(2,3,4);  // versions is now [2, 3, 4, 5, 6]
        
        trace(versions); // 2,3,4,5,6
    }
  }
}