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Run results for:
isNaN vs Number.isNaN vs Object.is
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=620382" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:144.0) Gecko/20100101 Firefox/144.0
Browser:
Firefox 144
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
6 months ago
Test name
Executions per second
isNaN
2542527.2 Ops/sec
Number.isNaN
803541.2 Ops/sec
Object.is
703898.8 Ops/sec
Script Preparation code:
var num = Array(100).fill(0).map(v => Math.random() < 0.2 ? NaN : Math.random());
Tests:
isNaN
num.map(v => isNaN(v));
Number.isNaN
num.map(v => Number.isNaN(v))
Object.is
num.map(v => Object.is(v, NaN));