Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36
Chrome 85
Windows
Desktop
4 years ago
Test name Executions per second
Array.prototype.concat 2984658.8 Ops/sec
spread operator 6547616.5 Ops/sec
Array.prototype.splice 9383.6 Ops/sec
Array.prototype.unshift 1954.4 Ops/sec
Array.prototype.push 7675949.0 Ops/sec
Script Preparation code:
Tests:
  • Array.prototype.concat

  • spread operator

  • Array.prototype.splice

  • Array.prototype.unshift

  • Array.prototype.push