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 531109.4 Ops/sec
Array.prototype.flatMap 551443.3 Ops/sec
Script Preparation code:
Tests:
  • reduce + Array.prototype.concat

  • Array.prototype.flatMap