Run results for: Data Properties vs. Accessor Properties vs. Getter / Setter Methods 2

The purpose of this benchmark is to determine the performance differences between data properties, accessor properties and getters / setter functions.

Go to the benchmark

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0

Browser: Firefox 133

Operating system: Linux

Device Platform: Desktop

Date tested: 3 days ago

Test name	Executions per second
Read from data property	2388566528.0 Ops/sec
Write to data property	1466171776.0 Ops/sec
Read from accessor method	649753152.0 Ops/sec
Write to mutator method	1341940864.0 Ops/sec
Read from object literal property	649740544.0 Ops/sec
Write to object literal property	1275260160.0 Ops/sec
Read from object literal property on prototype	677672448.0 Ops/sec
Write to object literal property on prototype	1364491520.0 Ops/sec
Read with prototype method	848672320.0 Ops/sec
Write with prototype method	1359838464.0 Ops/sec

HTML Preparation code:

<b>Comparing performance of:</b> Read from data property vs Write to data property vs Read from accessor method vs Write to mutator method vs Read from object literal property vs Write to object literal property vs Read from object literal property on prototype vs Write to object literal property on prototype

Script Preparation code:

var data = {
  property: property
};

var property = undefined;

var method = {
  getProperty: function() {
    return property;
  },

  setProperty: function(value) {
    property = value;
  }
};

var objectLiteralAccessor = {
  get property() {
    return property;
  },
  set property(value) {
    property = value;
  }
};

function Class() {
}

Class.prototype = {
  get property() {
    return property;
  },
  set property(value) {
    property = value;
  },
  getProperty() {
    return property;
  },
  setProperty(value) {
    property = value;
  }
};
    
var prototypeAccessor = new Class();

Tests:

Read from data property
var value = data.property;
Write to data property
data.property = true;
Read from accessor method
var value = method.getProperty();
Write to mutator method
method.setProperty(true);
Read from object literal property
var value = objectLiteralAccessor.property;
Write to object literal property
objectLiteralAccessor.property = true;
Read from object literal property on prototype
var value = prototypeAccessor.property;
Write to object literal property on prototype
prototypeAccessor.property = true;
Read with prototype method
var value = prototypeAccessor.getProperty();
Write with prototype method
prototypeAccessor.setProperty(true);

Run results for: Data Properties vs. Accessor Properties vs. Getter / Setter Methods 2

The purpose of this benchmark is to determine the performance differences between data properties, accessor properties and getters / setter functions.

Read from data property

Write to data property

Read from accessor method

Write to mutator method

Read from object literal property

Write to object literal property

Read from object literal property on prototype

Write to object literal property on prototype

Read with prototype method

Write with prototype method