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Run results for:
for-in vs object.keys vs object.values for objects perf
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=623177" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Mobile Safari/537.36
Browser:
Chrome Mobile 143
Operating system:
Android
Device Platform:
Mobile
Date tested:
8 months ago
Benchmark engine:
Benchmark.js
for-in
194K/s
Object.keys
184K/s
Object.values
181K/s
View exact numbers
Test name
Executions per second
✓
for-in
194,086 Ops/sec
Object.keys
183,693 Ops/sec
Object.values
180,908 Ops/sec
Script Preparation code:
var obj =[...new Array(1)].map(x=>({id:x,name:x}));
Tests:
for-in
for (var key in obj) { console.log(obj[key].id); }
Object.keys
Object.keys(obj).forEach(key => console.log(obj[key].id));
Object.values
Object.values(obj).forEach(n => console.log(n.id));