Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36
Chrome 88
Windows
Desktop
3 years ago
Test name Executions per second
reduce + Array.prototype.concat 1667678.9 Ops/sec
Array.prototype.flat 264763.5 Ops/sec
Manual copy 1728436.9 Ops/sec
Tests:
  • reduce + Array.prototype.concat

  • Array.prototype.flat

  • Manual copy