What is AngularJS? Architecture and Features

What is AngularJS?

AngularJS is an open source Model-View-Controller structure which resembles the JavaScript framework.

Angular JS is probably one of the most popular modern day web frameworks available today.This framework is used for developing mostly Single Page applications.This framework has been developed by a gruop of developers from Google itself.

In light of the sheer help of Google and thoughts from a wide network forum,the system is constantly stayed up with the latest.Also,it always incorporates the latest development trends in the market.

In this tutorial,you will learn :

1. AngularJS Features
2. Angularjs Architecture
3. Angular Advantages

AngularJS Features

Angular has the following key features which it one of the powerful frameworks in the market.

1. MVC - The structure is based on the acclaimed idea of MVC (Model-View-Controller). This is a design pattern used in all modern day web applications.This pattern is based on splitting the business logic layer,the data layer,and presentation layer into separate sections. The division into various areas is done as such that every one could be overseen all the more effectively.
2. Data Model Binding -

You do not need to write special code to bind data to the HTML controls.This can be done by Angular by just adding a few snippets of code.

1. Composing less code - When doing DOM control a ton of Javascript was required to be composed to structure any application. Yet, with Angular,you will be astonished with the lesser measure of code you have to compose for DOM control.
2. Unit Testing prepared - The planners at Google created Angular as well as built up a testing structure called "Karma" which aides in planning unit tests for AngularJS applications.

AngularJS Architecture

Angular.js follows the MVC architecture,the diagram of the framework as shown below.

controller->View->Model

Angularjs Architecture Diagram

1. The Controller speaks to the layer that has the business logic.User occasions trigger the capacities which are put away inside your controller.The user events are part of the controller.
2. Views are used to represent the presentation layer which is provided to the end users
3. Models are used to represent your data.The data in your model can be simple as just having primitive declarations.For example,if you are maintaining a student application,your data model could just have a student id and a name.Or it can be complex by having a structured data model. In the event that you are keeping up a vehicle possession application,you can have structures to characterize the vehicle itself as far as its motor capacity,seating limit and so on.

AngularJS Advantages

1. Since it is an open source framework,you can expect the number of errors or issues to be minimal.
2. Two-way binding - Angular.js keeps the data and presentation layer in sync.Now you do not need to write additional Javascript code to keep the data in your HTML code and your data later in sync.Angular.js will automatically do this for you.You just need to specify which controls is bound to which part of your model.

Model --> Page

1. Steering - Angular can deal with directing which means moving starting with one view then onto the next.This is the key fundamental of single page applications ; wherein you can move to various functionalities in your web application dependent on client connection yet at the same time remain in agreement.
2. Angular supports testing,both Unit Testing, and Integration Testing.
3. It extends HTML by providing its own elements called directives.At a high level, directive are markers on a DOM element (such as an attribute,element name,and comment or CSS class)that tell AngularJS's HTML compiler to join a predetermined conduct to that DOM component.These directives help in extending the functionality of existing HTML elements to give more power to your web application.

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