MeasureThat.net

Run results for: Array constructor vs literal

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Run details:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0
Firefox 134
Ubuntu
Desktop
2 months ago
Test name Executions per second
Array constructor - 1000 items 181128.7 Ops/sec
Array literal - 1000 items 125440.3 Ops/sec
Tests:

  • Array constructor - 1000 items

    ​x
     
    var n = 1000;
    var arr = new Array(n);
    ​
    for (var i = 0; i < n; i++) {
      arr[i] = i;
    }

  • Array literal - 1000 items

     
    var n = 1000;
    var arr = [];
    ​
    for (var i = 0; i < n; i++) {
      arr.push(i);
    }