Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:94.0) Gecko/20100101 Firefox/94.0
Firefox 94
Mac OS X 10.15
Desktop
2 years ago
Test name Executions per second
immutable with concat 813864.8 Ops/sec
direct mutation with splice + spread 553746.1 Ops/sec
Tests:
  • immutable with concat

  • direct mutation with splice + spread