Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:75.0) Gecko/20100101 Firefox/75.0
Firefox 75
Mac OS X 10.14
Desktop
4 years ago
Test name Executions per second
with spread operator 275484.7 Ops/sec
with mutation 4249935.0 Ops/sec
with object assign 510086.3 Ops/sec
Tests:
  • with spread operator

  • with mutation

  • with object assign