Mercurial > op > Looping

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="ja" lang="ja">
<head>
<title>Looping</title>
<script type="text/javascript"><![CDATA[

var Looping = function(){
	this.n0 = 0;
	this.calc = function(n){
		var n1 = this.n0 + (1 - 2*(n%2));
		this.n0 = n;
		return n1;
	};
};

function benchmark(){

	document.forms[0].elements["text1"].value = "";
	document.forms[0].elements["text2"].value = "";
	var o = new Looping();
	var n = 1;
	var st = new Date();
	for(var c=0;c<2147483647;c++){
	  n = o.calc(n);
	}
	var et = new Date();
	document.forms[0].elements["text1"].value = n;
	document.forms[0].elements["text2"].value = (et - st)/1000;
}

]]></script>
<style type="text/css">
input { width: 100%; }
</style>
</head>
<body>
<form>
<div style="width:320px;">
	<div style="margin:4px;">
		計算結果
		<input type="text" name="text1" value="" />
	</div>
	<div style="margin:4px;">
		経過時間
		<input type="text" name="text2" value="" />
	</div>
	<div style="margin:4px;">
		<input type="button" value="実行" onclick="benchmark();" />
	</div>
</div>
</form>
</body>
</html>
author	"uncorrelated zombie" <uncorrelated@yahoo.co.jp>
date	Wed, 23 Feb 2011 01:17:31 +0900
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