Global Verses Local

JavaScript performance comparison

Test case created by Josh

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var myobj = {
      foo: "bar",
      func1: function() {},
      func2: function() {}
    },
        t0, getWhatever, doSomethingGlobal, doSomethingLocal;
   
    getWhatever = function() {
      return myobj;
    }
   
    doSomethingGlobal = function() {
      t0 = getWhatever();
      t0.func1();
      t0.func2();
    }
   
    doSomethingLocal = function() {
      var t0 = getWhatever();
      t0.func1();
      t0.func2();
    }
};
</script>

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Testing in unknown unknown
Test Ops/sec
Global Register
doSomethingGlobal();
pending…
Local Variable
doSomethingLocal();
pending…

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