Arguments vs. Undefined Check

JavaScript performance comparison

Revision 2 of this test case created

Info

Checks to see if it is worthwhile avoiding arguments if we would have to do a safety check for an undefined argument anyway.

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    function testMethod(a, b, c) {
      // Blah...
    }
   
    function variadicBind(method) {
      var context = this;
      return function() {
        return method.apply(context, arguments);
      };
    }
   
    function restrictBind(method) {
      var context = this;
      return function(a, b, c, d, e, tooMany) {
        return method.call(context, a, b, c, d, e);
      };
    }
   
    var variadicBound = variadicBind(testMethod);
    var restrictBound = restrictBind(testMethod);
};
</script>

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Testing in unknown unknown
Test Ops/sec
Arguments
variadicBound();
pending…
Undefined Check
restrictBound();
pending…

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