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/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

obj.hasOwnProperty

51.3M/s

Object.hasOwn

46.7M/s

Object.prototype.hasOwnProperty

38.2M/s

View exact numbers

Test name	Executions per second
✓ obj.hasOwnProperty	51,306,052 Ops/sec
Object.hasOwn	46,716,244 Ops/sec
Object.prototype.hasOwnProperty	38,173,052 Ops/sec

Script Preparation code:

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

Tests: