Assessing the Evolution and Rise of AngularJS
Clean MVC Framework : AngularJS supports both model-view-controller (MVC) and model-view-viewmodel (MVVM) architectures. But it does not implement MVC in a conventional way. The web framework does not require developers to split the entire website into MVC components, and write code for each component individually. The developers can simply divide the application into MVC components, and use the framework to manage and connect the components efficiently. Thus, the developers can always save the amount of time and effort required to string the code for individual MVC components seamlessly.
Directives : While using AngularJS, developers have option to use directives as attributes on CSS, attributes, elements and other DOM elements. They can further use these directives to create custom HTML tags and custom widgets. The programmers also have option to manipulate the DOM, and store the modified DOM code inside the directives instead of the view. So the designers are simply required to focus on the user interface without dealing with the complex DOM manipulation.
Services and Templates : The users also have option to avail a variety of built-in services included in AngularJS. For instance, they can use the $http to make XMLHttpRequests. As each built-in service is designed as a singleton object, the developers are required to install it only once in the web application. Likewise, AngularJS can render views based on the information collected from the controller and model. So the developers have option to display all information in a single file or in multiple views.
Built-In Dependency Injection : AngularJS is further designed with a built-in dependency injection subsystem. The dependency injection makes it easier for developers to build, understand and test web applications more efficiently. In addition to connecting the web framework together, the built-in dependency injection further manages both controllers and scope. Thus, unit tests in AngularJS can use the dependency injection subsystem to pass mock data into the controller, and assess their behavior more accurately.
Despite being an open source web application framework, AngularJS has been updated at regular intervals. The current stable version of AngularJS was released by developers in November. The developers have also released developer preview version of AngularJS 2 in April 2015. So the developers can always download the most recent version of AngularJS to create a variety of single-page web applications rapidly.