list-at-a-time in as3

package
{
    import fl.controls.List;
    import fl.data.DataProvider;
    import flash.display.MovieClip;
    public class ArrayFilterTest extends MovieClip
    {
        
        protected var original_ar:Array
        protected var filtered_ar:Array
        protected var mapped_ar:Array
        
        public function ArrayFilterTest()
        {
            trace( "[ArrayFilterTest] - ArrayFilterTest() :: Constructed." )
            
            original_ar = new Array()
            filtered_ar = new Array()
            mapped_ar = new Array()
            
            for( var i:uint = 0; i < 10; i ++ )
            {
                original_ar.push( new ArrayTestItem() )
            }
            
            trace( "[ArrayFilterTest] - ArrayFilterTest() :: Original array: " )
            original_ar.forEach( traceItem )
            
            trace( "[ArrayFilterTest] - ArrayFilterTest() :: Filtered array: " )
            filtered_ar = original_ar.filter( filterItems )
            filtered_ar.forEach( traceItem )
            
            trace( "[ArrayFilterTest] - ArrayFilterTest() :: Mapped array: " )
            mapped_ar = original_ar.map( mapItems )
            mapped_ar.forEach( traceItem )
        }
        
        private function traceItem( element:ArrayTestItem, index:int, arr:Array ):void
        {
            trace( index + "\t\t" + element.ID + "\t\t" + element.test )
        }
        
        private function filterItems( element:ArrayTestItem, index:int, arr:Array ):Boolean
        {
            return element.test
        }
        
        private function mapItems( element:ArrayTestItem, index:int, Array:Array ):ArrayTestItem
        {
            var e:ArrayTestItem = new ArrayTestItem()
            e.ID = element.ID
            e.test = false
            return e
        }
    }
}

class ArrayTestItem
{
    
    public var test:Boolean
    public var ID:Number
    public function ArrayTestItem()
    {
        test = Math.random() > 0.5
        ID = Math.floor( Math.random() * 1000 )
    }
}

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