Vector class versus Array class

forked:8
favorite:6
lines:49
license : MIT License
modified : 2010-04-25 18:15:21

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package {
	import flash.display.Sprite;
	import flash.utils.getTimer;
	import flash.text.TextField;
	[SWF(width = "240", height = "180")]
	public class Vector_vs_Array extends Sprite {
		private static var my_txt:TextField = new TextField();
                private static var label_txt:TextField = new TextField();
		private const MAX_NUMBER:int = 5000000;
		private var my_array:Array = new Array();
		private var myVector:Vector.<int> = new Vector.<int>();
		private var myVectorFixed:Vector.<int> = new Vector.<int>(MAX_NUMBER,true);
		private var i:int;
		private var started:int;
		public function Vector_vs_Array() {
			testArray();
			testVector();
			testVectorFixed();
                        // TextField for display
			addChild(my_txt);
                        addChild(label_txt);
                        my_txt.x += 80;
                        label_txt.text = "Array:\nVector:\nVector (fixed):";
		}
		private function testArray():void {
			started = getTimer();
			for (i = 0; i < MAX_NUMBER; i++) {
				my_array[i] = i;
			}
			xTrace(getTimer() - started);
		}
		private function testVector():void {
			started = getTimer();
			for (i = 0; i < MAX_NUMBER; i++) {
				myVector[i] = i;
			}
			xTrace(getTimer() - started);
		}
		private function testVectorFixed():void {
			started = getTimer();
			for (i = 0; i < MAX_NUMBER; i++) {
				myVectorFixed[i] = i;
			}
			xTrace(getTimer() - started);
		}
		private static function xTrace(n:int):void {
			my_txt.appendText(String(n) + "\n");
		}
	}
}

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