MeasureThat.net

Run results for: Small Array concat vs spread operator vs push

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

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.105 Safari/537.36
Chrome 89
Windows
Desktop
4 years ago
Test name Executions per second
Array.prototype.concat 1321332.8 Ops/sec
spread operator 1863877.6 Ops/sec
Push 3165718.5 Ops/sec
Tests:

  • Array.prototype.concat

    AخA
     
    var params = new Array(20);
    var other = [ 1, 2 ].concat(params);

  • spread operator

     
    var params = new Array(20);
    var other = [ 1, 2, ...params ]

  • Push

     
    var params = new Array(20);
    var other = [ 1, 2 ].push(...params);