Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36
Chrome 75
Mac OS X 10.14.6
Desktop
5 years ago
Test name Executions per second
For In 352.4 Ops/sec
Object keys forEach 474.3 Ops/sec
Script Preparation code:
Tests:
  • For In

  • Object keys forEach