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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36

Browser: Chrome 112

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Object.prototype.hasOwnProperty	4213764.0 Ops/sec
obj.hasOwnProperty	7794652.0 Ops/sec
Object.hasOwn	3983933.0 Ops/sec
in obj	8092114.0 Ops/sec

Script Preparation code:

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

Tests: