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Run results for:
document.head vs document.getElementsByTagName("head")[0]
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=571346" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36 Edg/129.0.0.0
Browser:
Chrome 129
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
1
47.4M/s
2
38.4M/s
3
7.3M/s
View exact numbers
Test name
Executions per second
✓
1
47,448,372 Ops/sec
2
38,367,028 Ops/sec
3
7,259,132 Ops/sec
HTML Preparation code:
<html> <head id="myHead"> <title>My title</title> </head> <body><p id="demo"></p> </body> </html>
Tests:
1
var css = document.head || document.getElementsByTagName("head")[0];
2
var css = document.head;
3
var css = document.getElementsByTagName("head")[0];