4 <h1 id="id" class="class"></h1>
5 <script src="../resources/runner.js"></script>
7 PerfTestRunner.runPerSecond({
8 description: "This benchmark tests querySelector() for an element that appears near the head of the document",
10 for (var i = 0; i < 1000; i++) {
11 document.querySelector("h1");
12 document.querySelector("#id");
13 document.querySelector(".class");