Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:85.0) Gecko/20100101 Firefox/85.0
Firefox 85
Windows
Desktop
3 years ago
Test name Executions per second
reduce + Array.prototype.concat 3774377.0 Ops/sec
Array.prototype.flat 6289948.5 Ops/sec
Manual copy 9172936.0 Ops/sec
Tests:
  • reduce + Array.prototype.concat

  • Array.prototype.flat

  • Manual copy