React.js or the art of composition.
Each component, on its own, consists of other components. For example, inside the footer you can find the logo, the contact addresses and social networks the icons. Each component is also independent, making it easy to share interface codes from one developer to another or from one project to another.
The components can also be reused. Component libraries are regularly used in interfaces, the most popular are UI Material, UI Semantic and Bootstrap. UI Material is very accessible and allows a developer not experienced in design to build a beautiful interface and to designate confirmed to significantly accelerate the integration of its design.
As React.js is component oriented, it makes it easier to create modular architectures or even micro services.
The strength of VirtualDOM
React.js uses the VirtualDOM, which is a reconciliation algorithm. The DOM is the Object Model of the Document that represents an application programming interface for HTML and XML documents. It is with the DOM that the developers create documents, navigate through their structure and can manage the elements and their contents (addition, modification, suppression). The DOM is often slow to manipulate and the built-in changes typically slow down the entire application. The VirtualDOM makes it possible to overcome these constraints. Thus, React.js will only modify the DOM elements that have been changed, this technique is very efficient. It limits interactions with the DOM, often slow in writing.
This is what sets ReactJS apart from other frameworks: it works with a Virtual DOM that updates the rendering in the browser only when necessary. The performance of the application is accelerated and optimized.
React.js therefore operates under the concept of immutability: an object cannot be modified, at each necessary change a new object is created.
To sumup, why to choose React.js to develop your web and mobile applications ?
- It simplifies the creation of interfaces.
- The components are reusable.
- It gives access to component libraries.
- The VirtualDOM is powerful: only the modified elements within the web page are updated.
- It allows to develop mobile native applications with the ReactJS React native framework.
- The community around this framework is very active and growing fast (we count among the users of ReactJS, Airbnb, Netflix, Facebook, Instagram or Pinterest).
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