A single page application is a web application designed approach that fits the data into a single page with the aim of providing compact coding, similar to the desktop application. It uses all the mordern browsers, html5 and ajax that helps in creating the responsive web application. By using various javascript framework a user can create SIngle Page Application. 

SPA's features:

1. It helps to create a faster and easy interaction between the developer and user.

2. Interaction with the single page application involves dynamic communication with the web server.

3. It is user-friendly approach.

4. Ajax approaches include using IFRAME or script HTML elements.

5. This Web page App loads single HTML page as according to the users action.

6. All code (JS, HTML, CSS) is retrieved with a single page load.

7. SPAs gives us option to work offline because the pages are already loaded into the screen, user can still work without any internet connection.

JavaScript Framework:

These are the list of various JavaScript Framework used for creating Single Page Applications :-

• Angular.js:- AngularJS is a JavaScript framework it is a library written in JavaScript.It is a structural framework for designing dynamic web apps like that various framework used i.e React.js, Ember.js, Aurelia.js, Meteor.js adnd Mercury.js

These framework used for different purpose for performing the function in a single page application system.