pushall vs splice

JavaScript performance comparison

Test case created

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>

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Testing in unknown unknown
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…
pushapply-50000
A.push.apply(A, toAdd);
pending…

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