1. Consider a website with 10 HTML pages. In a website, header, footer, and the sidebar will be the same for all pages, to ensure consistency across the website. If any change in the footer is required (for example, the address in the footer needs to be modified) then it is mandatory to modify all the 10 HTML pages. Though header, footer, and sidebar are individual components on the web page, these components cannot be segregated.
Figure: Webpage layout without React Js
2. Consider a web page with a lot of user interaction and if the user wants to update or modify one field, then the whole page document object model (DOM) needs to be refreshed and this will result in performance issues. As there is no way to update only that element DOM which is updated.
How React Js Solves Problems?
ReactJs allows to fragment website into several individual components (refer the figure below). This is only a high-level component breakdown, but it can go deeper and allows the ability to create small component elements. For example, list views, navigation components, repeatable content, etc. That’s the capabilities ReactJs framework brings to the developers. This method of segmenting into different individual modules permits developers with to maintain them separately and create them as building blocks. This way it is easy for the development teams to distribute their work and manage efficiently.
Figure: Web Page layout with React Js
Some of important reasons why react is an excellent framework to consider to solve most of the web development challenges:
1. Reusable Components
ReactJs provides a component-based structure, where components form building blocks of the website. One can start building a website with components, like header, sidebar, footer or button. Then create main components which include all those smaller components. And, this way building website components goes on until it routes up to one root component and that final component is your application containing all the other components.
Each component has its own display logic and rendering information. One can re-use components anywhere as needed. Updating a component will automatically update all areas where the component is used, thereby enabling ease of maintenance.
2. Easy State Management
3. Allows to Better Focus on Business Logic
ReactJs is maintained by the vast community. Because of this, framework code is much better and continues to be refined in regular intervals. So developers don’t have to worry about the app’s state and focus more on the business logic, as there is less chance of getting the web app to crash due to framework issues. The better code build abilities allows the Reactjs framework to be highly efficient and fast.
4. Better Ecosystem and Active Community
ReactJs offer developers strong ecosystem and developer communities to get self-help. If developers encounter any problems, it’s easy to find a solution through the strong ReactJs developer’s community or using a third-party component.