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Run results for: Array concat vs spread operator vs push large with smaller array added

Compare the new ES6 spread operator with the traditional concat() method and push

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
Chrome 124
Mac OS X 10.15.7
Desktop
one month ago
Test name Executions per second
Array.prototype.concat 1548080.5 Ops/sec
spread operator 247534.3 Ops/sec
Push 460680.1 Ops/sec
Tests:

  • Array.prototype.concat

    AخA
     
    var params = Array(1000);
    var array = Array(100);
    var other = array.concat(params);

  • spread operator

     
    var params = Array(1000);
    var array = Array(100);
    var other = [ ...array, ...params ]

  • Push

     
    var params = Array(1000);
    var array = Array(100);
    var other = array.push(...params);