Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.131 Safari/537.36
Chrome 92
Windows
Desktop
3 years ago
Test name Executions per second
reduce + Array.prototype.concat 191318.8 Ops/sec
Array.prototype.flatMap 211868.9 Ops/sec
Script Preparation code:
Tests:
  • reduce + Array.prototype.concat

  • Array.prototype.flatMap