Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36
Chrome 87
Mac OS X 10.15.7
Desktop
3 years ago
Test name Executions per second
Array.prototype.concat 6692945.0 Ops/sec
spread operator 29443670.0 Ops/sec
Array.prototype.flat 933124.1 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat