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Run results for:
isNaN vs Number.isNaN vs Self comparison
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Run details:
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36 OPR/87.0.0.0
Browser:
Opera 87
Operating system:
Android
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
isNaN
31567904.0 Ops/sec
Number.isNaN
31265906.0 Ops/sec
cachedIsNaN
30505156.0 Ops/sec
Self comparison
33368616.0 Ops/sec
Script Preparation code:
const a = 0, { isNaN: cachedIsNaN } = Number
Tests:
isNaN
isNaN(a)
Number.isNaN
Number.isNaN(a)
cachedIsNaN
cachedIsNaN(a)
Self comparison
a !== a