Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36
Chrome 117
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
Using the spread operator 65528196.0 Ops/sec
Using Object.assign 8168132.5 Ops/sec
Manually copying properties 619019008.0 Ops/sec
Create new object while copying 628483840.0 Ops/sec
Create new object from scratch 1031415360.0 Ops/sec
Tests:
  • Using the spread operator

  • Using Object.assign

  • Manually copying properties

  • Create new object while copying

  • Create new object from scratch