Please enable Javascript to correctly display the contents on Dot Net Tricks!

Defining Namespace or Nested Objects in JavaScript

  Author : Shailendra Chauhan
Updated On : 30 Aug 2014
Total Views : 9,088   
 

JavaScript is a dynamic language. You can create objects on the fly, and objects can contain other objects, also it does not support the concept of namespace like C#.

Basically, a namespace is like a container which contains classes. In JavaScript you can achieve the same functionality as Namespace by creating nested objects. And since window itself is an object you can actually create objects directly into it. But if we would like to create an object in a non-existent nested namespace, we'll need to create that first.

Simple Namespace
<script>
var MyNameSpace = {
 calculateVat: function (base) {
 return base * 1.21;
 },
 product: function (price) {
 this.price = price;
 this.getPrice = function () {
 return this.price;
 };
 },
 doCalculations: function () {
 var p = new MyNameSpace.product(100);
 alert(this.calculateVat(p.getPrice()));
 }
}

//instancing product class
var p = new MyNameSpace.product(150);
//calling product class method
alert(p.getPrice());
</script>

Namespaces Nesting

<script>
var MyNameSpace = {
 calculateVat: function (base) {
 return base * 1.21;
 },
 MyNameSpace2: {
 product: function (price) {
 this.price = price;
 this.getPrice = function () {
 return this.price;
 };
 }
 },
 doCalculations: function () {
 var p = new MyNameSpace.product(100);
 alert(this.calculateVat(p.getPrice()));
 }
}

//instancing product class
var p = new MyNameSpace.MyNameSpace2.product(150);
//calling product class method
alert(p.getPrice());
</script>
What do you think?

I hope you will enjoy the namespace while programming with javascript. I would like to have feedback from my blog readers. Your valuable feedback, question, or comments about this article are always welcome.


YOU MIGHT LIKE
Free Interview Books
 
COMMENTS (0)
13 FEB
ASP.NET Core Development (online)

07:00 AM-09:00 AM IST( MON, WED, FRI)

Know More
25 JAN
Angular2 and Angular1 Development (online)

09:00 PM-10:30 PM IST(MON-FRI)

Know More
24 JAN
ASP.NET MVC with Angular2 Development (online)

07:00 AM-09:00 AM IST(Tuesday & Thursday)

Know More
20 JAN
NODEJS & MEAN Stack 2 Development (online)

09:00 PM-11:00 PM IST( MON, WED, FRI)

Know More
15 JAN
PPC Marketing (offline)

04:00 PM-05:300 PM

14 JAN
Xamarin Forms : Build Cross-platform Apps (offline)

05:00 PM-06:30 PM IST

10 JAN
ASP.NET MVC with AngularJS Development (online)

09:00 PM-11:00 PM IST on (TUE, THRU,SAT)

3 JAN
ASP.NET MVC with AngularJS Development (online)

07:00 AM-09:00 AM IST

31 DEC
ASP.NET MVC with AngularJS Development (offline)

09:30 AM-11:00 AM

31 DEC
Angular2 and Angular1 Development (offline)

11:00 AM-12:30 AM

26 NOV
ASP.NET MVC with AngularJS Development (offline)

03:00 PM-04:30 PM

5 NOV
ASP.NET MVC with AngularJS Development (offline)

08:00 AM-09:30 AM

4 SEP
MEAN Stack 2 Development (offline)

11:00 AM-12:30 PM.

BROWSE BY CATEGORY
 
RECENT ARTICLES
SUBSCRIBE TO LATEST NEWS
 
LIKE US ON FACEBOOK
 

Professional Speaks

+