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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser: Chrome 126

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

obj.hasOwnProperty

7.2M/s

Object.prototype.hasOwnProperty

4.1M/s

Object.hasOwn

3.8M/s

View exact numbers

Test name	Executions per second
✓ obj.hasOwnProperty	7,157,636 Ops/sec
Object.prototype.hasOwnProperty	4,059,884 Ops/sec
Object.hasOwn	3,759,270 Ops/sec

Script Preparation code:

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

Tests: