Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36
Chrome 66
Mac OS X 10.13.0
Desktop
6 years ago
Test name Executions per second
for..in 3158.6 Ops/sec
keys+forEach 3018.4 Ops/sec
Script Preparation code:
Tests:
  • for..in

  • keys+forEach


;