Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.102 Safari/537.36
Chrome 85
Mac OS X 10.15.6
Desktop
4 years ago
Test name Executions per second
immutable with concat 4658757.5 Ops/sec
direct mutation with splice + spread 657977.5 Ops/sec
Tests:
  • immutable with concat

  • direct mutation with splice + spread