Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Chrome 120
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
Using the spread operator 64371340.0 Ops/sec
Using Object.assign 8030492.5 Ops/sec
Manually copying properties 614401152.0 Ops/sec
Create new object while copying 627783424.0 Ops/sec
Create new object from scratch 1031048000.0 Ops/sec
Tests:
  • Using the spread operator

  • Using Object.assign

  • Manually copying properties

  • Create new object while copying

  • Create new object from scratch