Run details:
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36
Chrome 53
Windows
Other
8 years ago
Test name Executions per second
getOwnPropertyNames 1683484.5 Ops/sec
Cached property names 2758495.0 Ops/sec
for in 5105125.5 Ops/sec
Object.keys 2510816.8 Ops/sec
Script Preparation code:
Tests:
  • getOwnPropertyNames

  • Cached property names

  • for in

  • Object.keys