Benchmark: CSS selector best performance

HTML Preparation code:

<div id="my-id">
    <div class="grand">
        <div class="my-class">
            <p> I like carrots! </p>
        </div>
    </div>
</div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Tests:

case-1
$(' div#my-id div.grand div.my-class ').css("background-color", "#cccccc");
case-2
$(' #my-id .grand div.my-class ').css("background-color", "#cccccc");
case-3
$(' #my-id .grand .my-class ').css("background-color", "#cccccc");
case-4
$(' div#my-id div.my-class ').css("background-color", "#cccccc");
case-5
$(' #my-id div.my-class ').css("background-color", "#cccccc");
case-6
$(' #my-id .my-class ').css("background-color", "#cccccc");
case-7
$(' div.my-class ').css("background-color", "#cccccc");
case-8
$(' .my-class ').css("background-color", "#cccccc");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
case-1
case-2
case-3
case-4
case-5
case-6
case-7
case-8

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: yesterday)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser/OS: Chrome 124 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
case-1	884757.1 Ops/sec
case-2	925009.4 Ops/sec
case-3	932833.6 Ops/sec
case-4	931437.1 Ops/sec
case-5	925358.5 Ops/sec
case-6	948863.4 Ops/sec
case-7	964665.5 Ops/sec
case-8	981012.4 Ops/sec

CSS selector best performance (version: 0)

To measure how more specific selectors affect performance

Comparing performance of: case-1 vs case-2 vs case-3 vs case-4 vs case-5 vs case-6 vs case-7 vs case-8

Created: 11 days ago by: Guest

Jump to the latest result

case-1

case-2

case-3

case-4

case-5

case-6

case-7

case-8

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A