Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.80 Safari/537.36 OPR/72.0.3815.148
Opera 72
Linux
Desktop
4 years ago
Test name Executions per second
Array.prototype.concat 5022200.0 Ops/sec
spread operator 30306922.0 Ops/sec
Array.prototype.flat 655096.4 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat