Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36
Chrome 86
Linux
Desktop
4 years ago
Test name Executions per second
Array.prototype.concat 4477660.0 Ops/sec
spread operator 21203312.0 Ops/sec
Array.prototype.flat 577904.0 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat