Object.defineProperty vs __defineGetter__ vs normal (v23)

Revision 23 of this benchmark created on

Description

Test different access method to an object property

Preparation HTML

<script>
  obj = {
    _x: 0
  }

  var acc = 0;

  funct = {
    get: function() {
      return this._x
    },
    set: function(value) {
      this._x = value
    }
  }
</script>

Test runner

Ready to run.

Testing in
TestOps/sec
Object.defineProperty
Object.defineProperty(obj, "x", {
  get: funct['get'],
  set: funct['set']
})

for (var i = 0; i < 1000; i++) {
  obj.x = i;
  acc += obj.x;
}
ready
__defineGetter__
obj.__defineGetter__('x', funct['get']);
obj.__defineSetter__('x', funct['set']);

for (var i = 0; i < 1000; i++) {
  obj.x = i;
  acc += obj.x;
}
ready
Normal
for (var i = 0; i < 1000; i++) {
  obj._x = i;
  acc += obj._x;
}
ready
Prototype
obj.prototype = {
  get x() {
    return this._x;
  }, set x(value) {
    this_x = value;
  }
}

for (var i = 0; i < 1000; i++) {
  obj.x = i;
  acc += obj.x;
}
ready
Setter
obj.setX = function(value) {
  this._x = value;
}

for (var i = 0; i < 1000; i++) {
  obj.setX(i);
  acc += obj._x;
}
ready
dsa
Object.defineProperty(obj, "y", {
  enumerable: false,
  configurable: true,
  writable: true,
  value: {}
})

for (var i = 0; i < 1000; i++) {
  obj.y = i;
  acc += obj.y;
}
ready

Revisions

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