Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.1.1 Safari/605.1.15
Safari 12
Mac OS X 10.14.5
Desktop
5 years ago
Test name Executions per second
with spread operator 128300.0 Ops/sec
with mutation 5883200.0 Ops/sec
with object assign 295505.7 Ops/sec
Tests:
  • with spread operator

  • with mutation

  • with object assign