Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 15_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/102.0.5005.87 Mobile/15E148 Safari/604.1
Chrome Mobile iOS 102
iOS 15.5
Mobile
2 years ago
Test name Executions per second
Object.prototype.hasOwnProperty 8242030.0 Ops/sec
obj.hasOwnProperty 14828660.0 Ops/sec
Object.hasOwn 7234740.5 Ops/sec
Script Preparation code:
AخA
 
obj = {a: 42, b:66, c: 88}
Tests:
  • Object.prototype.hasOwnProperty

     
    Object.prototype.hasOwnProperty.call(obj, 'b');
  • obj.hasOwnProperty

     
    obj.hasOwnProperty('b');
  • Object.hasOwn

     
    Object.hasOwn(obj, 'b')