Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Firefox/91.0
Firefox 91
Mac OS X 10.15
Desktop
one year ago
Test name Executions per second
Custom Flatten Function 1996932.0 Ops/sec
Array.prototype.flat 16475257.0 Ops/sec
Script Preparation code:
Tests:
  • Custom Flatten Function

  • Array.prototype.flat