Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:89.0) Gecko/20100101 Firefox/89.0
Firefox 89
Mac OS X 10.15
Desktop
3 years ago
Test name Executions per second
immutable with concat 709356.9 Ops/sec
direct mutation with splice + spread 557649.2 Ops/sec
Tests:
  • immutable with concat

  • direct mutation with splice + spread