Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36
Chrome 88
Mac OS X 11.2.2
Desktop
3 years ago
Test name Executions per second
Array.prototype.concat 7367830.5 Ops/sec
spread operator 35122008.0 Ops/sec
Array.prototype.flat 1093717.0 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat