Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 14_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0 Mobile/15E148 Safari/604.1
Mobile Safari 14
iOS 14.0
Mobile
4 years ago
Test name Executions per second
Using the spread operator 1361068.6 Ops/sec
Using Object.assign 2432187.2 Ops/sec
Using Object.assign no mutation 2073789.5 Ops/sec
Tests:
  • Using the spread operator

  • Using Object.assign

  • Using Object.assign no mutation