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Run results for:
selector speed
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:139.0) Gecko/20100101 Firefox/139.0
Browser:
Firefox 139
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
10 months ago
Test name
Executions per second
class
9130299.0 Ops/sec
data
8819816.0 Ops/sec
data + tag
7793367.5 Ops/sec
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]');