Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:88.0) Gecko/20100101 Firefox/88.0
Firefox 88
Mac OS X 10.15
Desktop
3 years ago
Test name Executions per second
Array.prototype.concat 3892494.2 Ops/sec
spread operator 5281635.0 Ops/sec
Array.prototype.flat 6899655.5 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat