Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.60 Safari/537.36
Chrome 100
Linux
Desktop
2 years ago
Test name Executions per second
Using the spread operator 31898190.0 Ops/sec
Using Object.assign 3078330.0 Ops/sec
Manually copying properties 705501184.0 Ops/sec
Create new object while copying 758132992.0 Ops/sec
Create new object from scratch 762595264.0 Ops/sec
JSON 584969.0 Ops/sec
Tests:
  • Using the spread operator

  • Using Object.assign

  • Manually copying properties

  • Create new object while copying

  • Create new object from scratch

  • JSON