Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36
Chrome 77
Linux
Desktop
3 years ago
Test name Executions per second
immutable with concat 3494469.5 Ops/sec
direct mutation with splice + spread 2813044.8 Ops/sec
Tests:
  • immutable with concat

  • direct mutation with splice + spread