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Run results for:
tagName vs instanceof
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=609959" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Mobile Safari/537.36
Browser:
Chrome Mobile 137
Operating system:
Android
Device Platform:
Mobile
Date tested:
11 months ago
Test name
Executions per second
instanceof
6618873.5 Ops/sec
tagName
5360159.0 Ops/sec
nodeName
5376432.0 Ops/sec
localName
5708374.0 Ops/sec
__proto__
7850123.0 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;