#5 Reusability
React's modular design allows developers to reuse components across different applications and projects, saving time and effort in development.
React.js is all about component-based architecture. Developers may use this architecture to construct reusable UI components for use in various portions of the application. Each component is intended to serve a specific purpose and may be reused inside an application.
For example, let's say we have an e-commerce website that requires a shopping cart functionality. We can create a shopping cart component that contains all the necessary functionality for the shopping cart, such as adding items, removing items, and calculating the total cost. This shopping cart component can then be reused across different parts of the application, such as the product listing page, the product detail page, and the checkout page.
By reusing the shopping cart component, we can save time and effort in developing these different parts of the application, as we don't have to write the same code multiple times. Additionally, any changes made to the shopping cart component will be reflected across all instances of the component in the application, making it easier to maintain and update.
All in all, React.js allows for reusability by creating modular UI components that can be used multiple times within an application, saving time and effort in development and making it easier to maintain and update the application.