Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Run results for:
tagName vs instanceof
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=610685" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:139.0) Gecko/20100101 Firefox/139.0
Browser:
Firefox 139
Operating system:
Windows
Device Platform:
Desktop
Date tested:
10 months ago
Test name
Executions per second
instanceof
38288080.0 Ops/sec
tagName
27111902.0 Ops/sec
nodeName
33436738.0 Ops/sec
localName
34239392.0 Ops/sec
__proto__
33995020.0 Ops/sec
Script Preparation code:
var xs = []; var n = 0; for (let i = 0; i < 1000; ++i) { xs[i] = (Math.random() > .5) ? document.createElement(`div`) : document.createElement(`span`); };
Tests:
instanceof
n += ((xs[(Math.random() * 1000)|0]) instanceof HTMLDivElement)|0;
tagName
n += (xs[(Math.random() * 1000)|0].tagName === `DIV`)|0;
nodeName
n += (xs[(Math.random() * 1000)|0].nodeName === `DIV`)|0;
localName
n += (xs[(Math.random() * 1000)|0].localName === `div`)|0;
__proto__
n += ((xs[(Math.random() * 1000)|0]).__proto__ === HTMLDivElement.prototype)|0;