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; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Object.prototype.hasOwnProperty

999.7M/s

Object.hasOwn

993.1M/s

obj.hasOwnProperty

874.0M/s

View exact numbers

Test name	Executions per second
✓ Object.prototype.hasOwnProperty	999,721,984 Ops/sec
Object.hasOwn	993,050,048 Ops/sec
obj.hasOwnProperty	874,041,472 Ops/sec

Script Preparation code:

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

Tests: