Run results for: Test id vs next sibbling

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36

Browser: Chrome 134

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
next sibbling	658524.9 Ops/sec
based on id	557977.3 Ops/sec

HTML Preparation code:

<div class="js-tooltip" data-tooltip-id="tooltip-123"></div>
<div id="tooltip-123" class="c-tooltip">test</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:

next sibbling
var tooltip = document.getElementsByClassName("js-tooltip")[0]; console.log(tooltip.nextElementSibling[0]);
based on id
var tooltip = document.getElementsByClassName("js-tooltip")[0]; console.log(document.getElementById(tooltip.dataset.tooltipId));

Run results for: Test id vs next sibbling

next sibbling

based on id