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Run results for:
delete vs null vs undefined vs void 0 vs Object.create(null)
delete vs null vs undefined vs void 0 vs Object.create(null)
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<iframe src="https://measurethat.net/Embed?id=581838" 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
Test name
Executions per second
null
1483830.9 Ops/sec
undefined
586070.9 Ops/sec
Object.create(null)
30994.1 Ops/sec
void 0
1458157.6 Ops/sec
Tests:
null
var a = 999; for(var i = 0; i < 1000;i++) { a = null; }
undefined
var a = 999; for(var i = 0; i < 1000;i++) { a = undefined; }
Object.create(null)
var a = 999; for(var i = 0; i < 1000;i++) { a = Object.create(null); }
void 0
var a = 999; for(var i = 0; i < 1000;i++) { a = void 0; }