Run details:
Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
Chrome 63
Windows 8.1
Other
2025 years ago
Test name Executions per second
className = 78557.6 Ops/sec
className += 75008.6 Ops/sec
classList 44939.7 Ops/sec
Script Preparation code:
Tests:
  • className =

  • className +=

  • classList

  • addClass