Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36
Chrome 70
Mac OS X 10.14.1
Desktop
6 years ago
Test name Executions per second
Spread 14244354.0 Ops/sec
Object.assign (mutate) 4672582.0 Ops/sec
Object.assign (new object) 3768947.2 Ops/sec
Script Preparation code:
Tests:
  • Spread

  • Object.assign (mutate)

  • Object.assign (new object)