Benchmark: closest vs for loop

closest vs for loop (version: 0)

Goal: Get the target element inside the DOM Test case #1 - You don't have the target id - Find a target element through DOM via Element.closest() Test case #2 - You have the target id from your state - Find the target element via Document.querySelector()

Comparing performance of: closest vs for loop vs closest (miss) vs for loop (miss)

Created: 2 years ago by: Registered User

Jump to the latest result

HTML Preparation code:

<div><div><div>

<div data-parent="parent-id">

  <div><div>

    <div data-target="target-id">

      <div><div>      <div><div>      <div><div>      <div><div>      <div><div>

        <div data-clicked="clicked-id"></div>

      </div></div>      <div><div>      <div><div>      <div><div>      <div><div>

    </div>

  </div></div>

</div>

</div></div></div>

Script Preparation code:

var clicked = document.querySelector('[data-clicked]')

Tests:

closest
clicked.closest('[data-target]')
for loop
let target = clicked; do { target = target.parentElement; } while (target.getAttribute('data-target') === 'target-id' && target !== document.documentElement);
closest (miss)
clicked.closest('[data-miss]')
for loop (miss)
let target = clicked; do { target = target.parentElement; } while (target.getAttribute('data-miss') && target !== document.documentElement);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
closest
for loop
closest (miss)
for loop (miss)

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser/OS: Chrome 135 on Windows

View result in a separate tab

Test name	Executions per second
closest	2143691.0 Ops/sec
for loop	13381967.0 Ops/sec
closest (miss)	1381409.9 Ops/sec
for loop (miss)	13718072.0 Ops/sec

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