Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:57.0) Gecko/20100101 Firefox/57.0
Firefox 57
Mac OS X 10.13
Other
2025 years ago
Test name Executions per second
hasOwnProperty 395219.3 Ops/sec
Object.keys 438591.8 Ops/sec
Script Preparation code:
Tests:
  • hasOwnProperty

  • Object.keys