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AngularJS 2 – Open Source App Development Framework for Easy Applicability and Better Performance


Angular Technology


AngularJS is an open source client side web application development framework. It is entirely written in JavaScript and maintained by Google and community. This is the most dominant framework in the market to develop structural dynamic websites. AngularJS separates presentation, data and logic components in the same way as WPF (Window Presentation Foundation) does in .Net. Therefore, it’s  easy to maintain code in big applications. You can develop a SPA (Single Page Application) which supports, both, Model View Controller (MVC) and Model-View-View Model (MVVM) architecture. AngularJS is more readable, easy to understand and helps in developing dynamic web applications, faster.

AngularJS 1 – Angular 1.x is the initial version of AngularJS. Angular1 introduced many good features. The directive has been considered as one of the best features for reusability, by making the changes in its configuration. AngularJS 1 contains many built-in directives (Eg.: ng-app, ng-if, ng-for etc.) and each directive has its own features. It has model, controller, services, factory, provider, one way and two way data binding, dependency injection, built-in filters etc.

For more details about the features of AngularJS 1, please read the developer guide.

AngularJS 2 – AngularJS2 is the next level upgradation of AngularJS 1. The introduction of AngularJS 2 in the market does not mean that Angular 1 will render less support. AngularJS team is, surely upgrading their framework, but you will have to consider lot of changes that have been introduced in AngularJS 2. Few of them have been mentioned here. These are application workflow, configurations, syntax of data binding and events handling, creating classes, making class export and import, wherever required, just like Java programming, custom directive, replaced with component, and so on.

Comparison  Between AngularJS 1 and AngularJS 2

AngularJS 2

Why Migrate from AngularJS 1 to  AngularJS 2?

These are some of the reasons, as a developer, you can migrate from Angular 1 to Angular 2.

Performance: Once you plan to use the new library, technology and framework for development, you will have to look at the performance aspect first. AngularJS 2 has been improved a lot, in terms of performance. (Example: change in its detection method, improved data binding, better event handling and so on.)

Better  Mobile  Support : As you move from web to mobile world, you will realize that AngularJS 1 is not mobile oriented. AngularJS 2 has complete support for both, web and mobile.

Server-side Rendering :  AngularJS 2 loads the data very fast, without any delay in response because it is supported, strongly, by browser web worker. It keeps the UI  smooth and responsive. AngularJS 2 supports JavaScript fully, and the next version of  Javascript, such as Typescript and Dart.

AngularJS 2 is still in the beta version and yet to be fully stabilized.


In today’s world, component structure –based web development is popular and the popularity is likely to increase with time. AngularJS implemented great ideas, and with the technology evolution, AngularJS 2 took over AngularJS 1. In Angular 2, you need to focus on business logic rather than loading modules, adding dependency injection etc. AngularJS 2 is useful for complex web and mobile application development, which leads to the enhanced performance.

To get started on AngularJS 2 and understand the concept in more detail, take a tour of the website by reading the tutorials.


Ramesh Lamani

AngularJS developer, RapidValue

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