Benchmark: querySelector v getElementById

HTML Preparation code:

<div id="example">
  <p id="para">Text</p>
</div>

Script Preparation code:

/*your preparation JavaScript code goes here
To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/
async function globalMeasureThatScriptPrepareFunction() {
    // This function is optional, feel free to remove it.
    // await someThing();
}

Tests:

querySelector
document.querySelector("#para");
getElementById
document.getElementById("para");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
querySelector
getElementById

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 21 days ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.4 Safari/605.1.15

Browser/OS: Safari 26 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
querySelector	3533894.2 Ops/sec
getElementById	12695655.0 Ops/sec

Related benchmarks:

querySelector v getElementById (version: 1)

Comparing performance of: querySelector vs getElementById

Created: one month ago by: Guest

Jump to the latest result

querySelector

getElementById

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A