Run results for: querySelectorAll vs. getElementsByTagName with enumeration

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36 Edg/143.0.0.0

Browser: Chrome 143

Operating system: Windows

Device Platform: Desktop

Date tested: 7 months ago

getElementsByTagName

913K/s

querySelectorAll

652K/s

View exact numbers

Test name	Executions per second
✓ getElementsByTagName	913,321 Ops/sec
querySelectorAll	652,053 Ops/sec

HTML Preparation code:

<table id="data-table">
  <tr>
    <th colspan="6">Results</th>
  </tr>
  <tr>
    <td>No</td>
    <td>Competition</td>
    <td>John</td>
    <td>Adam</td>
    <td>Robert</td>
    <td>Paul</td>
  </tr>
  <tr>
    <td>1</td>
    <td>Swimming</td>
    <td>1:30</td>
    <td>2:05</td>
    <td>1:15</td>
    <td>1:41</td>
  </tr>
  <tr>
    <td>2</td>
    <td>Running</td>
    <td>15:30</td>
    <td>14:10</td>
    <td>15:45</td>
    <td>16:00</td>
  </tr>
  <tr>
    <td>3</td>
    <td>Shooting</td>
    <td>70%</td>
    <td>55%</td>
    <td>90%</td>
    <td>88%</td>
  </tr>
</table>

Script Preparation code:

var dataTable = document.getElementById('data-table');

Tests:

querySelectorAll
for (const elem of dataTable.querySelectorAll("tr")) {}
getElementsByTagName
for (const elem of dataTable.getElementsByTagName('TR')) {}