Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36
Chrome 73
Linux
Desktop
5 years ago
Test name Executions per second
immutable with concat 4049999.2 Ops/sec
direct mutation with splice + spread 4974718.0 Ops/sec
Tests:
  • immutable with concat

  • direct mutation with splice + spread