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/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

obj.hasOwnProperty

69.5M/s

Object.hasOwn

55.9M/s

Object.prototype.hasOwnProperty

49.0M/s

View exact numbers

Test name	Executions per second
✓ obj.hasOwnProperty	69,495,040 Ops/sec
Object.hasOwn	55,915,500 Ops/sec
Object.prototype.hasOwnProperty	49,028,128 Ops/sec

Script Preparation code:

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

Tests: