🧠 React useState Hook — The Core of Interactivity

The useState hook lets you add state to functional components.

📘 Example:

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

🪄 Update state easily:

<button onClick={() => setCount(count + 1)}>
  Count: {count}
</button>

✨ Key Points:
• Returns [value, setter]
• Re-renders component when state changes
• Use callback form → setCount(prev => prev + 1)

useState = Simplicity + Power 💪