Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.82 Safari/537.36
Chrome 93
Windows
Desktop
3 years ago
Test name Executions per second
Array.prototype.concat 4949077.0 Ops/sec
spread operator 25758668.0 Ops/sec
Array.prototype.flat 623172.9 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat