Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3759.4 Safari/537.36
Chrome 75
Linux
Desktop
5 years ago
Test name Executions per second
immutable with concat 2419243.0 Ops/sec
direct mutation with splice + spread 337058.0 Ops/sec
Tests:
  • immutable with concat

  • direct mutation with splice + spread