object literal vs new operate

JavaScript performance comparison

Test case created by island205

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    function Foo1() {
      var bar = 0;
      return {
        getBar: function() {
          return bar;
        },
        logBar: function() {
          this.getBar();
        }
      }
    }
   
    function Foo2() {
      var bar = 0;
      this.getBar = function() {
        return bar;
      }
    }
   
    Foo2.prototype.logBar = function() {
      this.getBar();
    }
};
</script>

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Testing in unknown unknown
Test Ops/sec
object literal
for (var i = 1; i < 20; i++) {
  var o = Foo1();
  o.logBar();
}
pending…
new operate
for (var i = 1; i < 20; i++) {
  var o = new Foo2();
  o.logBar();
}
pending…

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