Explain props vs state in React Native.

Props (Properties):

• Data passed from parent to child components
• Immutable within the receiving component
• Used for component configuration and data flow

State:

• Internal component data that can change over time
• Mutable using useState or setState
• Triggers re-renders when updated

// Props example
const ChildComponent = ({title, onPress}) => (
  <TouchableOpacity onPress={onPress}>
    <Text>{title}</Text>
  </TouchableOpacity>
);

// State example
const ParentComponent = () => {
  const [count, setCount] = useState(0);
  
  return (
    <ChildComponent 
      title={`Count: ${count}`}
      onPress={() => setCount(count + 1)}
    />
  );
};