Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36
Chrome 65
Mac OS X 10.13.3
Other
6 years ago
Test name Executions per second
Array.prototype.concat 746210.4 Ops/sec
spread operator 34165.3 Ops/sec
Script Preparation code:
Tests:
  • Array.prototype.concat

  • spread operator