Run details:
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0
Firefox 71
Windows 7
Desktop
5 years ago
Test name Executions per second
Array.prototype.concat 7226376.0 Ops/sec
spread operator 5597280.0 Ops/sec
Push 2533956.2 Ops/sec
Tests:
  • Array.prototype.concat

    AخA
     
    var params = [ "hello", true, 7 ];
    var other = [ 1, 2 ].concat(params);
  • spread operator

     
    var params = [ "hello", true, 7 ]
    var other = [ 1, 2, ...params ]
  • Push

     
    var params = [ "hello", true, 7 ];
    var other = [ 1, 2 ].push(...params);