Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:99.0) Gecko/20100101 Firefox/99.0
Firefox 99
Mac OS X 10.15
Desktop
2 years ago
Test name Executions per second
For In 1935.7 Ops/sec
Object keys forEach 1978.4 Ops/sec
Script Preparation code:
Tests:
  • For In

  • Object keys forEach