Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36
Chrome 89
Mac OS X 10.15.7
Desktop
3 years ago
Test name Executions per second
immutable with concat 6061894.5 Ops/sec
direct mutation with splice + spread 5817631.5 Ops/sec
Tests:
  • immutable with concat

  • direct mutation with splice + spread