Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.82 Safari/537.36
Chrome 93
Mac OS X 10.13.6
Desktop
3 years ago
Test name Executions per second
Array.prototype.concat 6999900.0 Ops/sec
spread operator 35289372.0 Ops/sec
Array.prototype.flat 1145507.9 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat