Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36
Chrome 76
Mac OS X 10.13.6
Desktop
5 years ago
Test name Executions per second
spread operator 3788189.8 Ops/sec
concat into empty array 2236679.0 Ops/sec
Script Preparation code:
Tests:
  • spread operator

  • concat into empty array