React Native: What is the difference between state and props in React Native?

State — internal. Props — external.

State:

• Internal to component.
• Can be changed.
• Mutable.
• Uses useState hook.

1const [count, setCount] = useState(0);

Props:

• Passed from parent.
• Cannot be changed.
• Immutable.
• Read-only.

1// Parent
2<Child name="John" age={25} />
3
4// Child
5function Child({ name, age }) {
6    return <Text>{name}</Text>;
7}

Key differences:

• State — internal, mutable.
• Props — external, immutable.
• State — component manages.
• Props — parent passes.