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Run results for:
instanceof vs isPrototypeOf vs Symbol.hasInstance
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=616032" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36
Browser:
Chrome 139
Operating system:
Linux
Device Platform:
Desktop
Date tested:
8 months ago
Test name
Executions per second
instanceof
34022076.0 Ops/sec
isPrototypeOf
63385056.0 Ops/sec
Symbol.hasInstance
58275052.0 Ops/sec
Script Preparation code:
let p = isPrototypeOf.bind(Element.prototype) let I = Element[Symbol.hasInstance].bind(Element)
Tests:
instanceof
document.body instanceof Element
isPrototypeOf
p(document.body)
Symbol.hasInstance
I(document.body)