Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0
Firefox 63
Windows
Desktop
5 years ago
Test name Executions per second
immutable with concat 1019009.2 Ops/sec
direct mutation with splice + spread 475987.3 Ops/sec
Tests:
  • immutable with concat

  • direct mutation with splice + spread