Javascript array concat vs push

JavaScript performance comparison

Revision 76 of this test case created by

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var arr1 = []
  var arr2 = new Array(100);
  var arr3 = []

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
index
for (i = 450; i > 0; i--) {
  for (var j = 0; j < arr2.length; ++j) arr1[arr1.length] = arr2[j];
}
pending…
single push
for (i = 450; i > 0; i--) {
  for (var j = 0; j < arr2.length; ++j) arr1.push(arr2);
}
pending…
concat
for (i = 450; i > 0; i--) {
  arr1 = arr1.concat(arr2);
}
pending…
push
for (i = 450; i > 0; i--) {
  Array.prototype.push.apply(arr1, arr2);
}
pending…

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