Benchmark: selector speed - MeasureThat.net

HTML Preparation code:

<div class="hello" id="hello" data-hello>Hello</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:

class
document.querySelector('.hello');
data
document.querySelector('[data-hello]');
data + tag
document.querySelector('div[data-hello]');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
class
data
data + tag

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; rv:139.0) Gecko/20100101 Firefox/139.0

Browser/OS: Firefox 139 on Mac OS X 10.15

View result in a separate tab

class

9.1M/s

data

8.8M/s

data + tag

7.8M/s

View exact numbers

Test name	Executions per second
✓ class	9,130,299 Ops/sec
data	8,819,816 Ops/sec
data + tag	7,793,368 Ops/sec

selector speed (version: 1)

Comparing performance of: `class vs data vs data + tag`

Created: one year ago by: Guest

Go to the latest result

class

data

data + tag

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

selector speed (version: 1)

Comparing performance of: class vs data vs data + tag

Created: one year ago by: Guest

Go to the latest result

class

data

data + tag

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Comparing performance of: `class vs data vs data + tag`