Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.102 Safari/537.36
Chrome 85
Windows
Desktop
4 years ago
Test name Executions per second
reduce + Array.prototype.concat 226539.2 Ops/sec
Array.prototype.flatMap 226660.8 Ops/sec
Script Preparation code:
Tests:
  • reduce + Array.prototype.concat

  • Array.prototype.flatMap