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Run results for:
Object literal vs Object.create(null)
compare performance of object creating non-empty objects using object literal vs Object.create
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<iframe src="https://measurethat.net/Embed?id=534101" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0
Browser:
Firefox 115
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
Object.create(null)
4K/s
object literal
3K/s
View exact numbers
Test name
Executions per second
✓
Object.create(null)
4,340 Ops/sec
object literal
2,511 Ops/sec
Tests:
Object.create(null)
const a = []; for (let i = 0; i < 10000; i++) { const o = Object.create(null) o.x = 'a string' o.y = 17 o.z = { m: 'an object', n: 97 } a.push( o ) }
object literal
const a = []; for (let i = 0; i < 10000; i++) { const o = { x: 'a string' } o.y = 17 o.z = { m: 'an object', n: 97 } a.push( o ) }