full forloop

JavaScript performance comparison

Test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var a = new Array();
    a[2147483647] = "asdf";
};
</script>

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Testing in unknown unknown
Test Ops/sec
forloop
l = a.length;

for (var i = 0; i < l; ++i) {
  if (a[i] != undefined)
    console.log(1);
}
pending…
forloop2
l = a.length;

for (var i = 0; i < l; ++i) {
  if (a[i] != undefined)
    console.log(1);
}
pending…

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