Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:88.0) Gecko/20100101 Firefox/88.0
Firefox 88
Mac OS X 10.15
Desktop
3 years ago
Test name Executions per second
For In 743.0 Ops/sec
Object keys forEach 747.3 Ops/sec
Script Preparation code:
Tests:
  • For In

  • Object keys forEach