Closure vs. property

JavaScript performance comparison

Revision 3 of this test case created by

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  function ClosureColor(name) {
      // Have no choice but to add these methods to the instance
      Object.defineProperty(this, 'name', {
          get: function () {
              return name;
          },
          set: function (n) {
              name = n;
          }
      });
  }
  var closureColor = new ClosureColor('green');
  
  
  function PropertyColor(name) {
      this._name = name;
      Object.defineProperty(this, 'name', {
          get: function () {
              return this._name;
          },
          set: function (n) {
              this._name = n;
          }
      });
  }
  var propertyColor = new PropertyColor('green');
  
  
  function PrototypeColor(name) {
      this._name = name;
  }
  Object.defineProperty(PrototypeColor.prototype, {
      get: function () {
          return this._name;
      },
      set: function (n) {
          this._name = n;
      }
  });
  var prototypeColor = new PrototypeColor('green');
  

};
</script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Closure
var name = closureColor.name;  // get
closureColor.name = 'blue';  // set
pending…
Property
var name = propertyColor.name;  // get
propertyColor.name = 'blue';  // set
pending…
Prototype
var name = prototypeColor.name;  // get
prototypeColor.name = 'blue';  // set
pending…

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Revisions

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