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Run results for:
Object.keys().length vs for i in object i++ vs Object.entries().length vs Object.values().length
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=582673" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36
Browser:
Chrome 132
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Object.keys().length
520.6 Ops/sec
for in i++
427.2 Ops/sec
Object.entries().length
199.5 Ops/sec
Object.values().length
4153.9 Ops/sec
Script Preparation code:
var object = {}; for (let i = 1; i <= 100000; i++) object[String(i)] = i;
Tests:
Object.keys().length
Object.keys(object).length
for in i++
let i = 0; for (const k in object) i++;
Object.entries().length
Object.entries(object).length
Object.values().length
Object.values(object).length