What is the Angular JS?
Angular JS is one of the most popular modern day web frameworks that the developers use HTML as their template language and extend HTML’s syntax to express the application’s components clearly and succinctly. Thus, there is no need to learn another language or syntax.
Since Angular JS maintained by Google and a community of developers, it is always up to date and is widely used to help manage and assist web applications. It is designed in a way that makes it works seamless with the new generation tools and eliminates data binding and dependency injection.
Features of Angular JS
- MVC Architecture
Comprises of three important elements model, view and controller, the idea behind using this architecture is to split the web application into a more manageable structure. This is because MVC makes it easier for developers to build a client-side web application.
MVC architecture is very dynamic in nature and offers the developer with the flexibility of not to write extra code to fit all the elements together. It does that automatically, all you have to do is to put the MVC element separately.
- Two Way Data Binding
- Less Code to Write
Angular JS framework requires very less coding with no need to write separate code for MVC. Since HTML is used for building the user interface, therefore the work of data binding is reduced for moving the data manually in the view. You can complete a task with a single code set for one application.
- Unit Testing
Unlike the traditional method, now there is no need to create a test page for testing the behaviour of the component. Thanks to Angular JS for making the testing part simple. The developers at Google have offered a testing framework “Karma”, which helps in designing unit tests for Angular JS applications.
Angular JS Architecture
Angular.js follows the dynamic MVC architecture, which is a software design pattern for developing web applications. It comprises of three important elements, the model, view and controller.
- Model ? It is the lowest level of the pattern which contains primitive declarations, responsible for maintaining data. They are simply used to represent your data.
- View ? It is responsible for displaying the presentation layer, which holds all or a portion of the data for the end user.
- Controller ? It is a software Code that represents the layer that has the business logic. It controls the interactions between the Model and View, which are stored inside the controller.
What is Node JS?
Node JS is perfect for data-intensive real-time applications as it is lightweight and efficient. This is because it uses an event-driven, non-blocking I/O model that is designed to optimize an application’s throughput and scalability for real-time web applications.
Features of Node JS
Node JS now plays a critical role in the technology stack of many high-profile companies who depend on its unique features. Some of the key features that make Node JS the first choice of software architects are
- Asynchronous and Event Driven
All APIs available in Node JS library is non-blocking, that means they are asynchronous. It typically means that a Node JS based server never waits for an API to return data, it rather moves to next API after calling the first one. A special notification mechanism of Events of Node JS helps the server to get a response from the previous API call.
- VeryX2 Fast
- Single Threaded but Highly Scalable
The model used by Node JS is a single threaded model with event looping. The mechanism of this model helps the server to respond in a non-blocking way. This makes the server highly scalable when compared to a traditional server, which creates limited threads to handle requests.
- No Buffering
There is no buffering of any data in Node JS applications. These applications rather chunk the output data.
Node JS is an open-source framework, released under the MIT license (MIT license is a free software license originating at the Massachusetts Institute of Technology (MIT))
Node JS is very popular and has emerged as one of most of the used technologies because it has lots of community tutorials, resources or shared code to offer.
The architecture of Node JS
Node JS is doing magical things with its Ã‚â€œSingle Threaded Event Loop ModelÃ‚â€ architecture. It is a super efficient way of handling multiple concurrent clients at once than traditional servers like Apache HTTP Server. Additionally, users of Node are free from worries of dead-locking the process since there are no locks. The process never blocks because no function in the Node directly performs I/O.
- Core V8 Engine: Run time Environment It is an open source JIT (Just In Time) compiler, which is written in C, C++ and outperformed PHP, Ruby and python performance wise.
- Libuv: A C++ library NodeÃ‚â€™s Libuv library handles the NodeÃ‚â€™s asynchronous I/O operation and main event loop. This library holds thread pool reserve, which handles the thread allocation to individual I/O operations.
Conclusion Angular JS vs Node JS
According to the above comparisons, both Angular JS and Node JS looks promising and exciting option within their own domain. If given a choice to select among Angular JS and Node JS, one must keep in mind the application requirements and select the framework.
Angular JS is solely client browser-based application and is best suited for single page applications, which are dynamic and interactive in nature. Whereas, Node JS being a server-side language requires a run-time environment for applications, which are real-time data-intensive and collaborative like Google Docs or Dropbox. However, their architecture and working model is quite different but both have an extensive set of features in their kitty, which can be used to create a variety of different applications.