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_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser: Chrome 135

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Object.keys with obj[key]

84.0M/s

Object.entries

68.0M/s

View exact numbers

Test name	Executions per second
✓ Object.keys with obj[key]	84,015,344 Ops/sec
Object.entries	68,005,584 Ops/sec

Script Preparation code:

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

Tests: