Benchmark: querySelector(nth-of-child) vs querySelectorAll and index array

HTML Preparation code:

<div id="base">
  <div class="test"></div>
  <div class="test"></div>
  <div class="test"></div>
  <div class="test"></div>
  <div class="test"></div>
  <div class="test"></div>
  <div class="test"></div>
  <div class="test"></div>
  <div class="test"></div>
  <div class="test"></div>
</div>

Tests:

document.querySelector(nth)
document.querySelector("div#base > div:nth-of-type(5)")
document.querySelectorAll
document.querySelectorAll('div#base > div.test')[4]

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
document.querySelector(nth)
document.querySelectorAll

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser/OS: Chrome 133 on Mac OS X 10.15.7

View result in a separate tab

document.querySelector(nth)

4.9M/s

document.querySelectorAll

2.0M/s

View exact numbers

Test name	Executions per second
✓ document.querySelector(nth)	4,850,278 Ops/sec
document.querySelectorAll	2,021,615 Ops/sec

querySelector(nth-of-child) vs querySelectorAll and index array (version: 1)

Comparing performance of: `document.querySelector(nth) vs document.querySelectorAll`

Created: one year ago by: Guest

Go to the latest result

document.querySelector(nth)

document.querySelectorAll

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

querySelector(nth-of-child) vs querySelectorAll and index array (version: 1)

Comparing performance of: document.querySelector(nth) vs document.querySelectorAll

Created: one year ago by: Guest

Go to the latest result

document.querySelector(nth)

document.querySelectorAll

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `document.querySelector(nth) vs document.querySelectorAll`