Run results for: matches vs. dataset

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

matches

27K/s

data

16K/s

View exact numbers

Test name	Executions per second
✓ matches	26,549 Ops/sec
data	16,009 Ops/sec

HTML Preparation code:

<div data-message-author-role="user" data-message-id="aaa2f94a-7680-4be5-b642-58b1cfb98519" class="min-h-[20px] text-message flex flex-col items-start gap-3 whitespace-pre-wrap break-words [.text-message+&amp;]:mt-5 overflow-x-auto">
</div>

Tests:

matches
var element = document.querySelector(".text-message"); var i = 1000; while (i--) { element.matches("div[data-message-author-role='user']"); }
data
var element = document.querySelector(".text-message"); var i = 1000; while (i--) { element.dataset.messageAuthorRole === "user" }