Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.128 Safari/537.36
Chrome 89
Linux
Desktop
2 years ago
Test name Executions per second
Array.prototype.concat 4351304.5 Ops/sec
spread operator 21595058.0 Ops/sec
Array.prototype.flat 675480.2 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat