Opting for AngularJS?

Opting for AngularJS?

Opting for AngularJS Frontend Javascript Framework MVC

A JavaScript framework that is so light that many mistake it for a library, AngularJS is certainly a significant part of the web application world. Major functions are performed by the framework, taking in CSS, JavaScript and HTML. The perks – no need to derive from an existing object, or declare your dependencies and properties. There is less code to duplicate, execution occurs faster. The dependency injection works wonders at especially two places, Single-Page Applications (SPAs) and testing. Division of your app into logical modules enables involvement of only those modules that concern you. Here are more reasons to opt for AngularJS:

Easier to work on
Starting on apps that feature basic functions is easy, building complex apps require an in-depth knowledge of all AngularJS functionalities. For a trouble-free working of applications on a large scale, knowledge of this framework is a must. Web developers who have already worked with CSS, Javascript and HTML will find it easier to learn AngularJS development from scratch.

Binding & Expressions
Two-way binding is a core AngularJS feature, among its most useful. It saves you valuable time, that would otherwise go into writing voluminous code. Lesser code to write allows you to focus on the application. Before attempting ways to bind data, setting up a source model to read data is a necessary step. Data binding automatically synchronizes data between model and view components. Angular templates work differently – the template is compiled on the browser, the compilation providing a live view. Changes made to the view are immediately reflected. The model breaks down the entire sequence to simple bits for the programmer.

Structured applications can certainly be built without much bother. You can run expressions within the confines of the HTML page. In order to obtain what you want, try Javascript for a desired output. All said, expressions are used for smaller tasks, for larger tasks there are directives.

Directives
One of the most powerful AngularJS features, directives help in extending HTML to serve web application needs. They allow specification with regards to page structure. There are several directives that aid in building the application. One of them is ‘ngRepeat’, this directive helps to create a new element set for every element in the collection. Whether an element is to be displayed or not, can be decided with the directive ‘ngShow’. There are other directives to imply, from ‘ngSwitch’, ‘ngModel’, ‘ngMyAwesomeDirective’ to ‘ngShow’, each performing a complex function.

The DI Factor
The dependency injection (DI) system is an intrinsic part of the framework. It helps the programmer in comprehending, making and testing the application. DI presents you with the dependencies, you don’t have to go searching for them. You name the dependency and DI will take over the search process. Moreover, you may define your own customized services and AngularJS will make them usable for DI. True unit testing is not dependent on any services or rendering and retaining the ability to create end-to-end tests, thanks to DIs.

Routing
AngularJS has the luxury of inbuilt routing. But if you still find limitations in the functionality, go for Angular UI-Router, mainly because of its dual features. You can avail the features of nested views and multiple views, thus add dynamism to the web application and its working. Matching specific URL content to a certain functionality; URL routes are so programmed that they display URL-focused content to the web application users.

The HTML Factor
That AngularJS uses the good old classic HTML language consequently makes it easier for both programmers and designers to work with it. Either party doesn’t have to depend on the other for interaction, the usual rules will apply to each party, thus making it a familiar process. For instance, creating the user interface and aligning various UI sections together will be easy, thanks to the HTML knowledge that application creators are equipped with.

Promises & Scope
AngularJS promises are powerful mechanisms, the feature allows you to perform complex and structured functions in the system. Promises are Javascript objects inclusive of ‘then’ and ‘finally’ functions. Commonly used promises are usually a product of $http service.

The application model is referred to as Scope, there is a hierarchy to it that replicates the application’s DOM structure. From Scopes, we derive APIs to cause any model changes and in case of model mutations. Evaluation of expressions makes sense only when Scopes allows the context.

Clean & Effective
This framework works on extending HTML, the difference, it is done in a format that is more readable and expressive. You are saved the effort of updating views manually. You can instead concentrate on application logic, use special markup with your HTML that matches with the JavaScript. AngularJS facilitates writing of cleaner and more effective code. Knowing how to operate the framework is not required while using your application.

Modules & ‘The View’
Applications are classified in modules. Directives, filters, controllers and services, can all be part of a module. Keeping your web application in smaller, broken up segments makes it easier to be tested and troubleshooted. This matches with the AngularJS approach of creating easily-maintainable web applications. Dependency injection plays a key part in fusing together your application components. After parsing and compilation of the HTML to make rendered bindings and markup by AngularJS, the HTML is ‘the view’. This section provides solid ground to design your application.

SPA Perks
In order to ensure that users do not view a new page, each time they click on a website object, brand new content is reloaded on the same page, with the altered url as proof of the change. Using Single Page Applications (SPAs) is a common practice in most apps and is easily done on AngularJS. This concerns that one ‘real’ HTML page, whose content can be altered in Javascript without having to download a brand new page. The new content can be created in Javascript, using templates. This arrangement does improve performance, though causing concerns in the history management section. Majority of the issues concerned with single page web applications are mostly handled by AngularJS itself, as the framework makers are aware of tackling such problems.

Testing & Embedding
Testing your AngularJS applications is no mean task, thanks to the in-built testing set up in the framework that invites you to do so. The application programming interface (API) is inclusive of detailed tests that will display how any part of the framework will function.

Another prime advantage, AngularJS aligns with most applications, to embed an app of AngularJS with any other app is a smooth process. The framework’s equation with technology has been unhindered too, adding to its all-round utility.

Summary
Finally, AngularJS adds to the creation of your web application, by enhancing HTML with dependency injections and directives. Arranging and testing JavaScript also becomes an easy task, thanks to the framework. It is among the best website/ web app frameworks, most suitable for working on single page applications.