Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36
Chrome 90
Mac OS X 10.14.6
Desktop
3 years ago
Test name Executions per second
reduce + Array.prototype.concat 90767.1 Ops/sec
Array.prototype.flatMap 172191.3 Ops/sec
Script Preparation code:
Tests:
  • reduce + Array.prototype.concat

  • Array.prototype.flatMap