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Angularjs Introduction | Features | Design Goals

By Author: IQ Online
Total Articles: 12

AngularJS Introduction:
• AngularJS is an open-source front-end application framework.
• It is mainly maintained by Google and by a community of individuals and corporations.
• It is maintained by these individuals and corporations to address many of the challenges encountered in developing single-page applications. It is a structural framework for dynamic web apps.

Features of AngularJS:
• AngularJS is most powerful JavaScript-based development framework to create RICH Internet Application.
• It provides developers options to write a client-side application (using JavaScript) in a clean MVC(Model View Controller) way.
• Application written in AngularJS is cross-browser compliant. It automatically handles JavaScript code suitable for each browser.
• It is an open source, completely free, and used by thousands of developers around the world. It is licensed under the Apache License version 2.0.
• Overall, It is a framework to build a large-scale and high-performance web application.

Core Features of AngularJS:
Following are most important core features of AngularJS −
• AngularJS Data binding − It is an automatic synchronization of data between the model and view components. In Angular, the two-way data binding is done by utilizing the ng-model directive.
• Scope − These are nothing but the objects that refer to the model.
• Controller − A controller is defined using the directive called ng-controller. Its application mainly relies on controllers to control the flow of data in the application. A controller is a JavaScript object containing attributes/properties and functions. Each controller accepts $scope as a parameter which refers to the application/module.
• Services − Services is nothing but the javascript functions. They are responsible to do specific tasks only. This makes them an individual entity which is maintainable and testable.
• Filters − These select a subset of items from an array and return a new array. An Angular Filter modifies the data before presenting it to the user. We can use these filters with expressions and directives. A filter is usually a predefined keyword, used with the symbol “|” (a pipe).
• Directives − Directives are markers on DOM elements. These can be used to create custom HTML tags that serve as new, custom widgets. ngBind, ngModel etc. are some of the built-in directives of AnguarJS.
• Templates − Template is made up of the following elements and attributes.
o Directive – the ng-app and ng-model are directives.
o Markup – Markup is nothing but binding the view with a model
using the curly braces {}.
o Filters – Formatting the value in an expression filters is done
by filters.
o Form Controls - To validate the user inputs we can use them
Angular Forms.

The AngularJS Components:
The AngularJS framework is divided into following five major parts −
• ng-app − This is the type of directive that defines and links the AngularJS application to HTML.
• ng-model − This type of directive binds the values of AngularJS application data to HTML input controls.
• ng-bind − This is another directive that binds the AngularJS Application data to HTML tags.
• ng-init − This is the directive that initializes application data.
• ng-repeat − This directive repeats the HTML elements for each item in a collection.

Design goals of AngularJS:
• Decouple DOM manipulation from application logic. This improves the testability of the code.
• Application testing holds equal importance as to application writing. The testing difficulty is dramatically affected by the way the code is structured.
• Decouple the client side of an application from the server side. This allows development work to progress in parallel and allows reuse of both sides.
• Guide developers through the entire journey of building an application from designing the UI to writing the business logic and testing.

Advantages of AngularJS:
• AngularJS will provide the capability to create the Single Page Application in a very clean and maintainable way.
• It gives the user a rich and responsive experience by providing data binding capability to HTML.
• Its code is unit testable.
• It mainly uses dependency injection and makes use of separation of concerns.
• It also provides reusable components.
• Developer can write the less code and get more functionality with the use of Angular JS.

Benefits Of Learning AngularJS Course In IQ Online Training:
IQ Online Training provides AngularJS Online Training course with real time Experts.
• Explains with real-time scenarios.
• Trainers always help you in clearing doubts
• Provides Job Support
• Gives 24*7 customer support
• 30 hours of training with flexible timings.
• FREE Live demo
• Weekday and weekend batches available
• Refer a friend and get OFFER.

For More Details About This Course Contact Us
Call Us@ USA: +1 732-593-8450
USA: +1904-304-2519
Mail Us: info@iqtrainings.com
Website: http://www.iqonlinetraining.com/
Address: 411 walnut street
Suite #8295
Green Cove Springs
FL- 32043-3443

Total Views: 54Word Count: 825See All articles From Author

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