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JavaScript performance comparison

Test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var a = [];
    var x = 0;
    var y = {};
};
</script>

Test runner

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Testing in unknown unknown
Test Ops/sec
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for (var i = 0; i < 1000; ++i) {
 try {
  a.push(function() { return i; });
  x++;
  y[x] = a;
 } catch(e) {}
}
 
pending…
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for (var i = 0; i < 1000; ++i) {
 var stack = (new Error()).stack;
 try {
  a.push(function() { return i; });
  x++;
  y[x] = a;
 } catch(e) {}
}
pending…

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