concat vs push

JavaScript performance comparison

Test case created by Simon Friis Vindum

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var arr1 = [1,2,3,4,5,6]
  var arr2 = [1,2,3,4,5,6,7]
  
  function arrayConcat(arr1, arr2) {
    const result = [];
    for (var i = 0; i < arr1.length; ++i) {
      result.push(arr1[i]);
    }
    for (var i = 0; i < arr2.length; ++i) {
      result.push(arr2[i]);
    }
    return result;
  }

};
</script>

Test runner

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Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
for-loop
var array3 = arrayConcat(arr1, arr2);
pending…
concat
var array3 = arr1.concat(arr2);
pending…

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