d3m3vilurr
/
sonyoss-vita-webkit


			
				
					
						
						
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							<html>
<head>
    <script type="text/javascript" src="./prototype-for-gebcn-test.js"></script>
    <script type="text/javascript">        
        function run(type)
        {
            var iterations = 10000;
            var result;
            var i = 0;
            var current;
            
            var start;
            
            var body = document.body;
            
            switch(type)
            {
            case "native":
                //test for a working native getElementsByClassName
                if(!document.getElementsByClassName)
                {
                    alert("Your browser does not have a native implementation of getElementsByClassName");
                    return;
                }
                start = new Date();

                for(; iterations > 0; --iterations)
                {
                    result = body.getElementsByClassName("test1 test2 test3 test4");
                    for(; current = result[i]; i++) {}
                }
                break;
            
            case "xpath":
                start = new Date();

                for(; iterations > 0; --iterations)
                {
                    result = document.getXPathElementsByClassName("test1 test2 test3 test4", body);
                    for(; current = result[i]; i++) {}
                }
                break;
            case "js":
                start = new Date();

                for(; iterations > 0; --iterations)
                {
                    result = document.getJSElementsByClassName("test1 test2 test3 test4", body);
                    for(; current = result[i]; i++) {}
                }
                break;
            }
            
            var end = new Date();
            document.getElementById("output").innerHTML = end - start;
        }
    </script>
</head>
<body>
    <button onclick="run('native');">run</button>
    <button onclick="run('xpath');">runxpath</button>
    <button onclick="run('js');">runjs</button>

    <span id="output"></span>
    <div class="test1 test2 test3 test4">
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    </div>
</body>
</html>