Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36 Edg/121.0.0.0
Chrome 121
Windows
Desktop
4 months ago
Test name Executions per second
for...in 2227.3 Ops/sec
Object.keys+forEach (ES5) 3264.2 Ops/sec
for...of - keys (ES6) 3267.9 Ops/sec
for...of - values (ES6) 2968.5 Ops/sec
for...of - entries (ES8) 2736.0 Ops/sec
Object.entries (ES8) 2752.2 Ops/sec
Script Preparation code:
Tests:
  • for...in

  • Object.keys+forEach (ES5)

  • for...of - keys (ES6)

  • for...of - values (ES6)

  • for...of - entries (ES8)

  • Object.entries (ES8)