Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36
Chrome 72
Mac OS X 10.14.2
Desktop
5 years ago
Test name Executions per second
For In 1005.3 Ops/sec
Object keys forEach 977.5 Ops/sec
Script Preparation code:
Tests:
  • For In

  • Object keys forEach