There are a number of JS frameworks available for front-end development. Angularjs, Emberjs, Vuejs, Reactjs are to name a few. Wider the options, it’s challenging to make up your mind for the one that complements your application requirement.
- Dependency Injection: In AngularJS, dependency injection is software design pattern, wherein how components hold their dependencies are defined. As a result, the application needs no main () method and thus any component in the code which does not fit your requirement can be replaced.
- Angular Directives: With AngularJS, developers can extend HTML with new attributes, which are called directives. A developer can either define his own directives or use built-in directives within the framework. These directives help to extend functionality of the application.
- Two-Way Data Binding: The synchronization between model and view of the framework happens with data binding. If there are changes in the model data, it’s reflected in the view. And, the vice versa is true as well. This immediate and automated action ensures that both view and model are updated at all the times.
- On-Board Form Validation: Client-side validation is a crucial component of great-user experience. With AngularJS, developers can validate the form entries, without having to write JS code.
- Virtual DOM: If there is one tech-specification that has to be highlighted to reflect contribution of ReactJS in an application’s performance, it would certainly be Virtual DOM. Instead of directly manipulating the DOM, React stores two copies of virtual DOM: the original one and the updated one (having the changes). These two versions of the DOM are run through a React function that checks out the difference between the two to render the parts of view that actually changed. This, as a result ensure that the changes in view are reflected faster.
- Server-Side Rendering: With ReactJS, the output can be rendered on both client and server side. This not only offer coding flexibility to coders but also give some breathing room to the Virtual DOM.
Choose ReactJS When:
For websites that have dynamically changing content, ReactJS proves to be a complementing technology. Today, most of the client-side websites wrestle to render large list of items in single view. This may affect efficiency of the website as a delay of milliseconds in rendering content may harm the user experience. So, if your website is going to have constantly changing, data-intensive content, hiring ReactJS developers is a great idea.
Popular ReactJS Websites: AirBnB, Facebook (partially), Instagram, Netflix, Imgur
Choose AngularJS When:
ReactJS was launched for developers back in 2013. The technology is not compatible with various old browsers (older than IE8). While the community is building large, there are still some questions that needs to be answered.
AngularJS is a comprehensive framework for frontend development and therefore, the time and skillset required to develop the website would be more than ReactJS. If a survey result by Stack Overflow is to be believed, developers ask more queries about AnguarJS than ReactJS.
However, with release of Angular v2.0, Google has given more performance-based reasons to choose AngularJS such as support for server-side rendering, two-way data binding, AJAX handling, modularization etc.
Popular AngularJS Websites: SanDisk, Google Express, Trello Developers, McDonalds (U.S.)