Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36
Chrome 86
Mac OS X 10.15.6
Desktop
4 years ago
Test name Executions per second
Array.prototype.concat 1358286.0 Ops/sec
spread operator 34906452.0 Ops/sec
Array.prototype.flat 892164.8 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat