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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:120.0) Gecko/20100101 Firefox/120.0

Browser: Firefox 120

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

Object.keys with obj[key]

15.6M/s

Object.entries

9.9M/s

View exact numbers

Test name	Executions per second
✓ Object.keys with obj[key]	15,630,284 Ops/sec
Object.entries	9,898,636 Ops/sec

Script Preparation code:

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

Tests: