Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36
Chrome 92
Windows
Desktop
3 years ago
Test name Executions per second
Array.prototype.concat 1994168.2 Ops/sec
spread operator 9600466.0 Ops/sec
Array.prototype.flat 242715.7 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat