scope chain

JavaScript performance comparison

Revision 3 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var foo = 1;
};
</script>

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Testing in unknown unknown
Test Ops/sec
not local
function bar() {
  var i, local;
  for (i = 0; i < 10000; i += 1) {
    console.log(foo);
  }
}
bar();
pending…
cached local
function bar() {
  var myFoo = foo, i;
  for (i = 0; i < 10000; i += 1) {
    console.log(foo);
  }
}
bar();
pending…

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