pushall vs splice

JavaScript performance comparison

Revision 2 of this test case created by

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var size = 10;
  var size2 = 10;
  var toAdd = [];
  for (var i = 0; i < size; i++) {
    toAdd.push(i);
  }
  var A = [];
  for (var i = 0; i < size2; i++) {
    A.push(i*i);
  }

};
</script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
splice-50000
A.splice.apply(A, [A.length, 0].concat(toAdd));
pending…
push-50000
for (var i = 0; i < toAdd.length; i++) {
  A.push(toAdd[i]);
}
pending…

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Revisions

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