Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36
Chrome 71
Mac OS X 10.14.2
Desktop
5 years ago
Test name Executions per second
For In 883.3 Ops/sec
Object keys forEach 870.2 Ops/sec
Script Preparation code:
Tests:
  • For In

  • Object keys forEach