What are components in React?
What are components in React?
190
03-Apr-2025
Khushi Singh
08-Apr-2025Every React application depends on components as its fundamental elements. Components in React provide reusable programming constructs that establish both visual appearance and behavioral logic for sections of the user interface (UI). The developer uses components to divide the user interface into several independent parts, which handle both logic and presentation functions.
The two key components in React exist as functional components and class components. Functional components make use of JavaScript functions that output JSX elements in order to generate the user interface. The introduction of Hooks simplifies and streamlines the codebase because these elements run more efficiently through the new state and side effect management features of React. Component serves as the base for class components through ES6 extension, allowing them additional capabilities of lifecycle methods and internal state storage. The predominant choice for modern React development work with functional components because they provide both simplicity and ease of use.
Components demonstrate the ability to embed each other since a single component can contain additional components. The practice of creating reusable generic components aids application development since developers can utilize them across different areas of the program. A Button component can be added repeatedly to different pages or components without compromising its appearance or behavior consistency.
The components benefit from accepting properties from their parent components. The usage of props enables components to display dynamic content, which improves their flexibility level. The individual components hold state data that alters when data changes and influences what information gets displayed.
The components found in React develop a declarative system where components act as the base units of development. Development becomes simpler through components since UI complexity can be divided into smaller, understandable components. The resulting code becomes easier to handle, and it scales better while being easier to maintain. The development process builds around React components when developing either single widgets or extensive applications.