Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36
Chrome 70
Mac OS X 10.14.1
Desktop
6 years ago
Test name Executions per second
Array.prototype.concat() 6414846.5 Ops/sec
Spread operator 30956600.0 Ops/sec
Tests:
  • Array.prototype.concat()

  • Spread operator