Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.4 Safari/605.1.15
Safari 16
Mac OS X 10.15.7
Desktop
6 months ago
Test name Executions per second
Using the spread operator 9818185.0 Ops/sec
Using Object.assign 7637638.5 Ops/sec
Manually copying properties 230168112.0 Ops/sec
Create new object while copying 216428960.0 Ops/sec
Create new object from scratch 519963616.0 Ops/sec
Tests:
  • Using the spread operator

  • Using Object.assign

  • Manually copying properties

  • Create new object while copying

  • Create new object from scratch