Array direct assignment vs push (big array)

JavaScript performance comparison

Revision 48 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var directArray = [];
    var pushArray = [];
    var presizedArray = Array(100000);
};
</script>

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Testing in unknown unknown
Test Ops/sec
Direct assignment
for(var i = 0; i < 100000; i++)
{
  directArray[i] = "test";
}
pending…
Push
for(var i = 0; i < 100000; i++)
{
  pushArray.push("test");
}
pending…
Direct assignment with pre-allocate
for(var i = 0; i < 100000; i++)
{
  presizedArray[i] = "test";
}
pending…

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