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Run results for:
instanceof vs typeof
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=570131" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Mobile Safari/537.36
Browser:
Chrome Mobile 131
Operating system:
Android
Device Platform:
Mobile
Date tested:
one year ago
typeof
4.2M/s
instanceof
2.2M/s
typeof and test attribute
2.2M/s
typeof no function
2.2M/s
View exact numbers
Test name
Executions per second
✓
typeof
4,196,605 Ops/sec
instanceof
2,215,365 Ops/sec
typeof and test attribute
2,210,822 Ops/sec
typeof no function
2,190,767 Ops/sec
Script Preparation code:
var obj = {a:2};
Tests:
instanceof
obj instanceof Object
typeof
typeof obj === 'object'
typeof no function
typeof obj === 'object' && typeof obj !== 'function'
typeof and test attribute
typeof obj === 'object' && obj.a