instance vs prototype

JavaScript performance comparison

Revision 2 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var A = function(valueArg) {
      this.value = valueArg;
      this.count = 0;
   
      this.increment = function() {
        this.count++;
      };
      this.decrement = function() {
        this.count--;
      };
      this.getValue = function() {
        return this.value;
      };
    }
   
    var B = function(valueArg) {
      this.value = valueArg;
      this.count = 0;
    };
    B.prototype.increment = function() {
      this.count++;
    };
    B.prototype.decrement = function() {
      this.count--;
    };
    B.prototype.getValue = function() {
      return this.value;
    };
};
</script>

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Testing in unknown unknown
Test Ops/sec
instance
var a = new A(1);
a.increment();
a.decrement();
a.getValue();
pending…
prototype
var b = new B(1);
b.increment();
b.decrement();
b.getValue();
pending…

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