AngularJS is an open source web application framework. It was originally developed in 2009 by Misko Hevery and Adam Abrons. It is now maintained by Google. Its latest version is 1.2.21. AngularJS is a structural framework for dynamic web applications. It lets you use HTML as your template language and lets you extend HTML’s syntax to express your application components clearly and succinctly. Its data binding and dependency injection eliminate much of the code you currently have to write. And it all happens within the browser, making it an ideal partner with any server technology.
- AngularJS is an efficient framework that can create Rich Internet Applications (RIA).
- AngularJS is open source, completely free, and used by thousands of developers around the world. It is licensed under the Apache license version 2.0.
Overall, AngularJS is a framework to build large scale, high-performance, and easy to maintain web applications.
Data Binding – It is the automatic synchronization of data between model and view components.
Scope – These are objects that refer to the model. They act as a glue between controller and view.
Services – AngularJS comes with several built-in services such as $http to make an XML Http Requests. These are singleton objects which are instantiated only once in app.
Filters – These select a subset of items from an array and returns a new array.
Directives – Directives are markers on DOM elements such as elements, attributes, CSS, and more. These can be used to create custom HTML tags that serve as new, custom widgets. AngularJS built-in directives such as ngBind, ngModel, etc.
Templates – These are the rendered view with information from the controller and model. These can be a single file (such as index.html) r multiple views in one page using partials.
Routing – It is concept of switching views.
Deep Linking – deep linking allows to encode the state of application in the URL so that it can be bookmarked. The application can then be restored from the URL to the same state.
Dependency Injection – AngularJS has a built-in dependency injection subsystem that helps the developer to create, understand, and test the applications easily.
ADVANTAGES OF ANGULARJS:
- It provides the capability to create Single Page Application in a very clean and maintainable way.
- It provides data binding capability to HTML. Thus, it gives user a rich and responsive experience.
- AngularJS code is unit testable.
- AngularJS uses dependency injection and make use of separation of concerns.
- AngularJS provides reusable components.
- With AngularJS, the developers can achieve more functionality with short code.
DISADVANATAGES OF ANGULARJS: