AS3 startsWith/endsWith Speedtest

speedtest.as

package
{
	import flash.display.Sprite;
	
	/**
	 * ...
	 * @author Test
	 */
	public class Main extends Sprite 
	{
		
		public function Main() 
		{
			
			var s:String = "HELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLOHELLO";

			var p:String = "HE";

			var t:Number = new Date().getTime();
			for(i=0;i<100000;i++){
				if (s.substring(0, 2) == p){
				}
			}
			trace('startsWith using Substring : ' + (new Date().getTime() - t) + " ms")

			var t:Number = new Date().getTime();
			for(i=0;i<100000;i++){
				if (s.lastIndexOf(p, 0) == 0){
				}
			}
			trace('startsWith using LastIndexOf : ' + (new Date().getTime() - t) + " ms")


			var t:Number = new Date().getTime();
			for(i=0;i<100000;i++){
				var elen:int = p.length;
				var slen:int = s.length;
				if (slen >= elen && s.substr(slen - elen, elen) == p){
				}
			}
			trace('endsWith using Substring : ' + (new Date().getTime() - t) + " ms")

			var t:Number = new Date().getTime();
			for(i=0;i<100000;i++){
				var elen:int = p.length;
				var slen:int = s.length;
				if (s.indexOf(p, (slen - elen)) == (slen - elen)){
				}
			}
			trace('endsWith using IndexOf : ' + (new Date().getTime() - t) + " ms")
		
			
		}
		
	}
	
}