Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.1.2 Safari/605.1.15
Safari 12
Mac OS X 10.14.6
Desktop
5 years ago
Test name Executions per second
For In 5724.8 Ops/sec
Object keys forEach 5415.2 Ops/sec
Script Preparation code:
Tests:
  • For In

  • Object keys forEach