Run details:
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36 OPR/58.0.3135.132
Opera 58
Windows
Desktop
5 years ago
Test name Executions per second
immutable with concat 4870234.0 Ops/sec
direct mutation with splice + spread 1120864.9 Ops/sec
Tests:
  • immutable with concat

  • direct mutation with splice + spread