Property Getter / Setter Techniques (v90)

Revision 90 of this benchmark created by DB on

Description

Testing various techniques for creating getters / setters in JavaScript.

Edit: Set property name _prop to prop for object obj.

Preparation HTML

<script>
  var obj = {
   prop: 0
  }
  
  var obj1 = {
   _prop: 0,
   getProp: function() {
    return this._prop;
   },
   setProp: function(value) {
    this._prop = value;
   }
  };
  
  var obj2 = {
   _prop: 0,
   get prop() {
    return this._prop;
   },
   set prop(value) {
    this._prop = value;
   },
  };
  
  
  var obj3 = {
   _prop: 0
  }
  
  
  Object.defineProperty(obj3, "prop", {
   get: function() {
    return this._prop;
  
   },
   set: function(val) {
    this._prop = val;
   }
  });
  
  var obj4 = {
   _prop: 0
  }
  
  
  obj4.__defineGetter__("prop", function() {
   return this._prop;
  });
  
  obj4.__defineSetter__("prop", function(val) {
   this._prop = val;
  });

 var obj5 = Object.create(obj3);
 obj5._prop = 0;

 var obj6 = Object.create(obj4);
 obj6._prop = 0;
</script>

Test runner

Ready to run.

Testing in
TestOps/sec
Methods
obj1.setProp(obj1.getProp() + 1);
ready
get / set
obj2.prop = obj2.prop + 1;
ready
Object.defineProperty
obj3.prop = obj3.prop + 1;
ready
__defineGetter__
obj4.prop = obj4.prop + 1;
ready
Property
obj.prop = obj.prop + 1;
ready
proto Object.defineProperty
obj5.prop = obj5.prop + 1;
ready
proto __defineGetter__
obj6.prop = obj6.prop + 1
ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.