Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.55 Safari/537.36
Chrome 96
Mac OS X 10.14.6
Desktop
3 years ago
Test name Executions per second
Array.prototype.concat 6530905.0 Ops/sec
spread operator 29911592.0 Ops/sec
Push 42508548.0 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 ];
    other.forEach((item) => {
        other.push(item);
    });