longouyang · June 18, 2010 19:41
diff --git a/test_setinterval.html b/test_setinterval.html
 <html> 
 <head> 
 
 <script type="text/javascript"> 
 var pID;
 var i = 0;
 var startTime, endTime;
 
 function start_test() {
  i = 0;
  pID = setInterval(update, 1);
  startTime = new Date();
 }
 
 function update() {
  i++;
  if(i == 250) {
    end();
  }
 }
 
 function end() {
 	clearInterval(pID);
    endTime = new Date();
    document.getElementById('result').innerHTML = (endTime-startTime) / 250 + "ms";
 }
 </script> 
 </head> 
 <body> 
 	This test assesses how fast setInterval() is called. 
 	<input type="submit" onclick="start_test();" value="Start"> 
 	<div id='result'></div> 
 	
 </body></html>
	<html>
	<head>

	<script type="text/javascript">
	var pID;
	var i = 0;
	var startTime, endTime;

	function start_test() {
	i = 0;
	pID = setInterval(update, 1);
	startTime = new Date();
	}

	function update() {
	i++;
	if(i == 250) {
	end();
	}
	}

	function end() {
	clearInterval(pID);
	endTime = new Date();
	document.getElementById('result').innerHTML = (endTime-startTime) / 250 + "ms";
	}
	</script>
	</head>
	<body>
	This test assesses how fast setInterval() is called.
	<input type="submit" onclick="start_test();" value="Start">
	<div id='result'></div>

	</body></html>