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Run results for:
for-in vs object.keys vs object.values for objects perf
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<iframe src="https://measurethat.net/Embed?id=623178" 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:
4 months ago
Test name
Executions per second
for-in
188886.8 Ops/sec
Object.keys
181623.7 Ops/sec
Object.values
173256.1 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));