What are Stateless components in React?

Stateless components in React, also known as functional components, are a type of React component that do not manage or track internal state. Instead, they receive data through props and return JSX, which describes the user interface. These components function purely as functions in JavaScript, taking in props as their argument and returning React elements that describe what should appear on the screen[1][4][5].

Characteristics of Stateless Components

1. No Internal State Management: Unlike stateful components, stateless components do not handle any internal state. They do not use methods like setState or lifecycle methods like componentDidMount[1][4].

2. Function-Based: Stateless components are typically written as functions and not as classes. They can be as simple as a function that takes props and returns JSX[5].

3. Simplicity and Reusability: Due to their simplicity, stateless components are easier to understand, test, and maintain. They are also highly reusable across different parts of an application because their behavior is predictable and solely dependent on the input props[1][4].

4. Performance: Stateless components can lead to better performance in some cases because they do not have the overhead associated with state management and lifecycle methods. This makes them faster to mount and update[1][4].

5. Use Cases: They are ideal for presenting static UI elements or components where the output can be determined solely by the props without needing any additional internal ...