Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:86.0) Gecko/20100101 Firefox/86.0
Firefox 86
Mac OS X 10.15
Desktop
3 years ago
Test name Executions per second
immutable with concat 1206849.8 Ops/sec
direct mutation with splice + spread 756871.4 Ops/sec
Tests:
  • immutable with concat

  • direct mutation with splice + spread