Run results for: Object literal vs Object.create(null)

Run details:

User agent: Mozilla/5.0 (Linux; Android 13; ASUS_I006D) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.111 Mobile Safari/537.36 OPR/79.0.4172.75690

Browser: Opera Mobile 79

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

object literal

3K/s

Object.create(null)

176/s

View exact numbers

Test name	Executions per second
✓ object literal	2,746 Ops/sec
Object.create(null)	176 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 ) }

Run results for: Object literal vs Object.create(null)

compare performance of object creating non-empty objects using object literal vs Object.create

Object.create(null)

object literal