Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.83 Safari/537.36
Chrome 85
Linux
Desktop
4 years ago
Test name Executions per second
Array.prototype.concat 6475681.0 Ops/sec
spread operator 24031264.0 Ops/sec
Array.prototype.flat 886675.6 Ops/sec
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.flat