Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:89.0) Gecko/20100101 Firefox/89.0
Firefox 89
Mac OS X 10.14
Desktop
3 years ago
Test name Executions per second
Array.prototype.concat 6534908.0 Ops/sec
spread operator 7659250.5 Ops/sec
Array.prototype.flat 6435819.5 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat