Fields

They are also known as class instance fields, class variables or member variables.
A field is a Variable of any type that is declared directly inside a class or structure.
Fields should not be accessed directly but always through Properties.

Accessing - Using Public

function class_Example(name, address) { 
   // public fields 
   this.name = name; 
   this.address = address; 
} 
var myObject = new class_Example("one","two"); 
var string1 = myObject.name 

Accessing - Using Methods

This uses private fields

function class_Example(name, address) { 
   // private fields 
   var privateString = "some text"; 
    // assuming that this variable is used inside one of the class methods. 
} 
var myObject = new class_Example("one","two"); 
var string1 = myObject.name 

Accessing - Using Properties

var myObject = { 
   Property1 : 10, 
   get Property1_Get() { 
      return this.Property1; 
   } 
} 

var myObject = { 
   Property1 : 10, 
   set Property1_Set(val) { 
      this.Property1 = val; 
   } 
}