Run results for: Object.entries VS Object.keys with obj[key]

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36 Edg/145.0.0.0

Browser: Chrome 145

Operating system: Windows

Device Platform: Desktop

Date tested: 5 months ago

Object.keys with obj[key]

54.5M/s

Object.entries

44.7M/s

View exact numbers

Test name	Executions per second
✓ Object.keys with obj[key]	54,477,340 Ops/sec
Object.entries	44,674,416 Ops/sec

Script Preparation code:

var obj = {}

for (const key of 'abcdefghijklmnopqrstuvwxyz'.split())
  obj[key] = Math.random()

Tests: