Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.0
Chrome 120
Windows
Desktop
6 months ago
Test name Executions per second
for...in 3878.1 Ops/sec
Object.keys+forEach (ES5) 6077.8 Ops/sec
for...of - keys (ES6) 6092.4 Ops/sec
for...of - values (ES6) 6120.8 Ops/sec
for...of - entries (ES8) 5382.6 Ops/sec
Object.entries (ES8) 5414.7 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)