package { import flash.display.Sprite; import flash.text.TextField; import flash.geom.Point; import flash.utils.getTimer; public class test extends Sprite { private var array:Array = new Array(); private var vector:Vector.<Point> = new Vector.<Point>(); public function test() { var text_field:TextField = new TextField(); text_field.width = stage.stageWidth; text_field.height = stage.stageHeight; stage.addChild(text_field); for(var i:int = 0; i < 250000; i++) { array.push(new Point()); vector.push(new Point()); } var _str:String = new String(); _str += "Array for:" + benchMarkj(a1) + "\r"; _str += "Array for in:" + benchMarkj(a2) + "\r"; _str += "Array for each:" + benchMarkj(a3) + "\r"; _str += "Array forEach1:" + benchMarkj(a4) + "\r"; _str += "Array forEach2:" + benchMarkj(a5) + "\r"; _str += array[0].x + "\r"; _str += "Vector for:" + benchMarkj(v1) + "\r"; _str += "Vector for in:" + benchMarkj(v2) + "\r"; _str += "Vector for each:" + benchMarkj(v3) + "\r"; _str += "Vector forEach1:" + benchMarkj(v4) + "\r"; _str += "Vector forEach2:" + benchMarkj(v5) + "\r"; _str += vector[0].x + "\r"; text_field.text = _str; } private function benchMarkj(_fn:Function):int { var time:int = getTimer(); _fn(); return getTimer() - time; } private function a1():void { for(var i:int = 0; i < array.length; i++) { array[i].x++; } } private function a2():void { for(var i:String in array) { array[i].x++; } } private function a3():void { for each(var pos:Point in array) { pos.x++; } } private function a4():void { array.forEach(function(pos:Point, i:int, array:Array):void { pos.x++; }); } private function a5():void { array.forEach(function(pos:Point, i:int, array:Array):void { array[i].x++; }); } private function v1():void { for(var i:int = 0; i < vector.length; i++) { vector[i].x++; } } private function v2():void { for(var i:String in vector) { vector[i].x++; } } private function v3():void { for each(var pos:Point in vector) { pos.x++; } } private function v4():void { vector.forEach(function(pos:Point, i:int, vector:Vector.<Point>):void { pos.x++; }); } private function v5():void { vector.forEach(function(pos:Point, i:int, vector:Vector.<Point>):void { vector[i].x++; }); } } }