Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.66 Safari/537.36
Chrome 87
Linux
Desktop
4 years ago
Test name Executions per second
Array.prototype.concat 2711030.0 Ops/sec
spread operator 27563428.0 Ops/sec
Array.prototype.flat 751194.1 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat