Run results for: Object.prototype.hasOwnProperty vs obj.hasOwnProperty vs Object.hasOwn

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Browser: Chrome 125

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

obj.hasOwnProperty

6.5M/s

Object.prototype.hasOwnProperty

3.6M/s

Object.hasOwn

3.6M/s

View exact numbers

Test name	Executions per second
✓ obj.hasOwnProperty	6,480,708 Ops/sec
Object.prototype.hasOwnProperty	3,570,315 Ops/sec
Object.hasOwn	3,553,375 Ops/sec

Script Preparation code:

obj = {a: 42, b:66, c: 88}

Tests: