Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6 Safari/605.1.15
Safari 15
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
Object.prototype.hasOwnProperty 2429422.8 Ops/sec
obj.hasOwnProperty 5022000.0 Ops/sec
Object.hasOwn 2322910.5 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')