Run results for: id vs attribute

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:150.0) Gecko/20100101 Firefox/150.0

Browser: Firefox 150

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 12 days ago

Test name	Executions per second
beginning with attribute selector	2605606.8 Ops/sec
attribute selector	2769202.2 Ops/sec
id selector	3313027.2 Ops/sec

HTML Preparation code:

<div id="variableContainerSso"></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:

beginning with attribute selector
document.querySelector("div[id^='variableContainerSso']")
attribute selector
document.querySelector("div[id='variableContainerSso']")
id selector
document.querySelector("#variableContainerSso")

Run results for: id vs attribute

beginning with attribute selector

attribute selector

id selector