forked from: Comparing speed of Array.push() method with brackets

/**
 * Copyright Fumio ( http://wonderfl.net/user/Fumio )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/sLTY
 */

// forked from Fumio's Comparing speed of Array.push() method with brackets
package {
	import flash.display.Sprite;
	import flash.utils.getTimer;
	import flash.text.TextField;
	import flash.text.TextFieldAutoSize;
	import flash.text.TextFormat;
	import flash.text.TextFormatAlign;
	[SWF(width = "240",height = "180")]
	public class Array_methods_vs_brackets extends Sprite {
		private const MAX_NUMBER:int = 5000000;
		// private var my_array:Array;
		private var n:uint;
		private var started:int;
		private var my_txt:TextField = new TextField();
		private var label_txt:TextField = new TextField();
		private var my_fmt:TextFormat = new TextFormat();
		public function Array_methods_vs_brackets() {
			// Creating a TextField for display
			createTextField();
			// Starting Test
			use_push_method();
			// use_unshift_method();
			use_brackets();
			use_brackets_with_length();
			// use_brackets_with_length_2();
			use_brackets_with_property();
			// round 2
			use_push_method();
			use_brackets();
			use_brackets_with_length();
			use_brackets_with_property();
		}
		private function use_push_method():void {
			var _array:Array = new Array();
			started = getTimer();
			for (var i:uint = 0; i < MAX_NUMBER; i++) {
				_array.push(i);
			}
			xTrace(getTimer() - started);
		}
		private function use_unshift_method():void {
			var _array:Array = new Array();
			started = getTimer();
			for (var i:uint = 0; i < MAX_NUMBER; i++) {
				_array.unshift(i);
			}
			xTrace(getTimer() - started);
		}
		private function use_brackets():void {
			var _array:Array = new Array();
			started = getTimer();
			for (var i:uint = 0; i < MAX_NUMBER; i++) {
				_array[i] = i;
			}
			xTrace(getTimer() - started);
		}
		private function use_brackets_with_length():void {
			var _array:Array = new Array();
			started = getTimer();
			for (var i:uint = 0; i < MAX_NUMBER; i++) {
				_array[_array.length] = i;
			}
			xTrace(getTimer() - started);
		}
		private function use_brackets_with_length_2():void {
			var _array:Array = new Array();
			started = getTimer();
			for (var i:uint = 0; i < MAX_NUMBER; i++) {
				var nLength:uint = _array.length
				_array[nLength] = i;
			}
			xTrace(getTimer() - started);
		}
		private function use_brackets_with_property():void {
			var _array:Array = new Array();
			started = getTimer();
			for (var i:uint = 0; i < MAX_NUMBER; i++) {
				_array[n++] = i;
			}
			xTrace(getTimer() - started);
		}
		private function createTextField():void {
			addChild(my_txt);
			addChild(label_txt);
			my_fmt.align = TextFormatAlign.RIGHT;
			my_txt.x +=  70;
			my_txt.defaultTextFormat = my_fmt;
			my_txt.autoSize = TextFieldAutoSize.RIGHT;
			label_txt.autoSize = TextFieldAutoSize.LEFT;
			label_txt.text = "Array.push() method:\nbrackets []:\nbrackets and Array.length:\nbrackets and property:";
		}
		private function xTrace(n:int):void {
			my_txt.appendText(String(n) + "\n");
		}
	}
}