Benchmark: getElementById vs querySelector vs getElementsByClassName vs getElementsByName FIXED

getElementById vs querySelector vs getElementsByClassName vs getElementsByName FIXED (version: 0)

HTML Preparation code:

<div id="testdiv">
  <div id="unique" class="unique" name="unique" data-unique="1">test</div>
</div>

Script Preparation code:

var i, imax;
var doc = document;

Tests:

getElementById
var test = doc.getElementById('testdiv').childNodes[0].innerHTML;
getElementsByTagName
var formelem = doc.getElementsByTagName('div')[1].innerHTML;
querySelector
var test = doc.querySelector('#testdiv > .unique').innerHTML;
getElementsByClassName
var test = doc.getElementsByClassName('unique')[0].innerHTML;
getElementsByName
var test = doc.getElementsByName('unique')[0].innerHTML;

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.125 Safari/537.36

Browser/OS: Chrome 84 on Windows