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Run results for:
For in vs Object.*.forEach vs Object.values 2
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Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Browser:
Chrome 126
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
For In
459.1 Ops/sec
Object values
428.6 Ops/sec
Object keys for of
484.5 Ops/sec
Script Preparation code:
var obj = new Object() var keys = (new Array(10000)).fill(0).map((x, i) => { return i + 1 }) keys.forEach((x) => { obj['prop' + x] = x })
Tests:
For In
const arr = []; for (const key in obj) { arr.push(obj[key]); }
Object values
const arr = Object.values(obj);
Object keys for of
const arr = []; for (const key of Object.keys(obj)) { arr.push(obj[key]); }