Benchmark: querySelectorAll foreach vs getElementsByClassName [].forEach.call()

HTML Preparation code:

<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>

Tests:

querySelectorAll foreach
var test = document.querySelectorAll(".test"); test.forEach(el => { var t = el; });
getElementsByClassName [].forEach.call()
var test = document.getElementsByClassName("test"); [].forEach.call(test, el => { var t = el; });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
querySelectorAll foreach
getElementsByClassName [].forEach.call()

Fastest: N/A

Slowest: N/A

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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/81.0.4044.138 Safari/537.36

Browser/OS: Chrome 81 on Windows

View result in a separate tab

Test name	Executions per second
querySelectorAll foreach	213875.6 Ops/sec
getElementsByClassName [].forEach.call()	231033.7 Ops/sec

querySelectorAll foreach vs getElementsByClassName [].forEach.call() (version: 0)

Comparing performance of: querySelectorAll foreach vs getElementsByClassName [].forEach.call()

Created: 3 years ago by: Guest

Jump to the latest result

querySelectorAll foreach

getElementsByClassName [].forEach.call()

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A