Run results for: 2023 js qs - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/117.0

Browser: Firefox 117

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
querySelector 1	2657535.8 Ops/sec
querySelector 2	2425245.0 Ops/sec
querySelector 3	2747540.5 Ops/sec
querySelector 4	2449960.5 Ops/sec
querySelector 5	2551843.2 Ops/sec

HTML Preparation code:

<div class="content"><ul><li><a class="first" id="first">Tralala1</a></li><li><a>Tralala2</a></li><li><a>Tralala3</a></li></ul></div>

Tests:

querySelector 1
document.querySelector(".content ul li a")
querySelector 2
document.querySelector(".content > ul > li > a")
querySelector 3
document.querySelector(".content a")
querySelector 4
document.querySelector("ul li a#first")
querySelector 5
document.querySelector("ul li a.first")