What is the difference between state and props in React?

In React, both state and props are used to manage data, but they serve different purposes and have distinct characteristics:

Definition: State is a built-in object that is used to hold data that may change over the lifecycle of a component.
Mutability: State is mutable, meaning it can be changed or updated using the setState method (in class components) or the useState hook (in functional components).
Ownership: State is owned by the component itself. Each component can manage its own state independently.
Usage: State is typically used for data that needs to be tracked and updated within a component, such as form inputs, toggles, or any data that changes over time.

Definition: Props (short for properties) are a way to pass data from one component to another, typically from a parent component to a child component.
Mutability: Props are immutable, meaning they cannot be changed by the child component that receives them. They are read-only.
Ownership: Props are owned by the parent component. The parent component can pass props down to its children, but the child cannot modify them.
Usage: Props are used to pass data and event handlers to child components, allowing for communication and data flow between components.

State: Mutable, owned by the component, used for internal data management.
Props: Immutable, owned by the parent component, used for passing data to child components.

Understanding the difference between state and props is crucial for effectively managing data in React applications.