Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:63.0) Gecko/20100101 Firefox/63.0
Firefox 63
Mac OS X 10.13
Desktop
6 years ago
Test name Executions per second
with spread operator 238272.8 Ops/sec
with mutation 3802333.0 Ops/sec
with object assign 443634.8 Ops/sec
Tests:
  • with spread operator

  • with mutation

  • with object assign