Quick Tips

AngularJS


AngularJS is a structured, JavaScript framework for building web applications and apps in JavaScript, HTML, and TypeScript, which is a superset of JavaScript. It is used for dynamic one-page applications. Being a framework it uses code templates written in HTML in order to perform a particular function or command. The data binding and dependency functionalities of Angular JS saves time invested in writing lengthy codes. All these features are packaged in a browser that makes it a suitable server technology. The code is written in TypeScript, which compiles to JavaScript and displays the same in the browser.

Advantages of AngularJS

  • Two-way binding of data:

Angular JS allows you to do two-way data binding that enables view and model to coordinate with the changes in one another.

  • MVVM(Model-View-ViewModel):

The MVC or Model-View-Controller pattern means a lot of different things to different people. AngularJS does not implement MVC in the traditional sense, but rather something closer to MVVM (Model-View-ViewModel).

  • Dependency Injection:

AngularJS has a built-in dependency injection subsystem that helps the developer by making the application easier to develop, understand, and test. Dependency Injection (DI) allows you to ask for your dependencies, rather than having to go look for them or make them yourself. Think of it as a way of saying “Hey I need X’, and the DI is responsible for creating and providing it for you.

  • Service providers:

AngularJS introduces the “Service” to perform some light lifting inside the controller so that the main focus to the controller remains on the view update and the scope. The service provides the exposure the API to expose what we want and needs to expose. It does not deal with the MVC of the application. It also communicates with the servers if required to monitor the data flow and also perform some push and pull methods to take out data and send data to the server. A resource sharing service is provided to the controllers to share their resources.

  • Filters:

Filters work is to just filter the data before it reaches the view. It performs the paginations and also filters a data array with respect to the parameters. The functions are modified according to the ideal parameters but these are only data transformation task done. It works with regards to putting the data in the proper format before it is actually placed in the view. For example, putting decimal point in a number or reversing the order of numbers/serial in the desired range

  •  Injectable:

The dependency injection in AngularJS allows you to declaratively describe how your application is wired. This means that your application needs no main() method which is usually an unmaintainable mess. Dependency injection is also a core to AngularJS. This means that any component which does not fit your needs can easily be replaced.

  • Testable:

AngularJS was designed from the ground up to be testable. It encourages behavior-view separation, comes pre-bundled with mocks, and takes full advantage of dependency injection. It also comes with end-to-end scenario runner which eliminates test flakiness by understanding the inner workings of AngularJS.

  • Deep Linking:

A deep link reflects where the user is in the app. This is useful so users can bookmark and email links to locations within the app. Round trip apps get this automatically, but AJAX apps by their nature do not. AngularJS combines the benefits of deep linking with desktop app-like behavior.

AngularJS offers developer many ways to accomplish functionalities in a simple, efficient, and testable manner. The overall point of an AngularJS is one framework that is used for mobile and desktop application.