Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_1_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36
Chrome 88
Mac OS X 11.1.0
Desktop
3 years ago
Test name Executions per second
Using the spread operator 2261641.8 Ops/sec
Using Object.assign 5538910.5 Ops/sec
Using Object.assign no mutation 4659359.5 Ops/sec
Tests:
  • Using the spread operator

  • Using Object.assign

  • Using Object.assign no mutation