Run results for: Lopp over element attributes

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

For loop

2.4M/s

for of

1.2M/s

ForEach

1.1M/s

View exact numbers

HTML Preparation code:

<div id="test" one="one" two="two" three="three" four="four" five="five"></div>

Tests:

For loop
const element = document.querySelector('#test'); const length = element.attributes.length; for (let i = 0; i < length; i++) { const _attr = element.attributes[i]; }
ForEach
const element = document.querySelector('#test'); const attributes = [...element.attributes]; attributes.forEach(attr => { const _attr = attr; });
for of
const element = document.querySelector('#test'); for (const attr of element.attributes) { const _attr = attr; }