Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0 Safari/605.1.15
Safari 14
Mac OS X 10.15.6
Desktop
4 years ago
Test name Executions per second
immutable with concat 8354500.0 Ops/sec
direct mutation with splice + spread 2162833.0 Ops/sec
Tests:
  • immutable with concat

  • direct mutation with splice + spread