Run results for: querySelectorAll vs getElementsByTagName specific use case 2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:136.0) Gecko/20100101 Firefox/136.0

Browser: Firefox 136

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
querySelectorAll	156934.5 Ops/sec
getElementsByTagName	46323.8 Ops/sec

HTML Preparation code:

<body>
  <div>
    <script nonce data-something="test"></script>
    <script nonce data-something="test"></script>
    <script nonce data-something="test"></script>
    <script nonce></script>
    <script nonce></script>
    <script nonce></script>
    <div>
      <script nonce data-something="test"></script>
      <script nonce data-something="test"></script>
      <script nonce data-something="test"></script>
      <script nonce></script>
      <script nonce></script>
      <script nonce></script>
    </div>
  </div>
  <script nonce data-something="test"></script>
  <script nonce data-something="test"></script>
  <script nonce data-something="test"></script>
  <script nonce></script>
  <script nonce></script>
  <script nonce></script>
</body>

Tests:

querySelectorAll
var foundScripts = document.querySelectorAll('body>script'); for (s in foundScripts) { if (foundScripts[s].attributes && foundScripts[s].attributes.length == 1 && foundScripts[s].hasAttribute('nonce') && foundScripts[s].text.substring(0, 19) == 'AF_initDataCallback') { console.log(foundScripts[s]); } }
getElementsByTagName
var foundScripts = document.getElementsByTagName('script'); for (s in foundScripts) { if (foundScripts[s].parentElement == document.body && foundScripts[s].hasOwnProperty('attributes') && foundScripts[s].attributes.length == 1 && foundScripts[s].hasAttribute('nonce') && foundScripts[s].text.substring(0, 19) == 'AF_initDataCallback') { console.log(foundScripts[s]); } }