What is the difference between state and props in React or how do they serve different purposes

Question

Can i know What is the difference between state and props in React, or how do they serve different purposes?

Answer 1

In React, state and props are two core concepts used to manage and pass data within components, but they serve different purposes. Here's a structured comparison:

Feature	State	Props
Definition	Internal data that a component manages	External data passed to a component
Mutability	Mutable (can be updated using setState or useState)	Immutable (cannot be changed by the receiving component)
Ownership	Owned and managed by the component itself	Passed down from a parent component
Usage	Used to store dynamic data and trigger re-renders	Used to pass data and functions from parent to child components
Changes Trigger Re-Render?	Yes, updating state causes re-render	Yes, if the parent re-renders and passes new props
Can be used in functional components?	Yes, using useState and other hooks	Yes, received as function arguments
Where is it defined?	Inside the component	In the parent component and passed to child Related Question :​ Implement lazy loading for images in React