Building Your Learning Module...
Getting things ready for you!
Find videos you like?
Save to resource drawer for future reference!
Hooks are special functions that let you "hook into" React features from function components. They were introduced in React 16.8 to let you use state and other React features without writing a class.
Function components are easier to read and write than classes.
Extract and share stateful logic with custom Hooks.
Avoid confusion with `this` and binding methods.
Add and manage component state
Read and subscribe to context
Reference values and DOM nodes
Synchronize with external systems
Optimize rendering performance
Specialized use cases
Clean, modern function component
// ✅ Modern: Using Hooks (Simple!)
function Counter() {
const [count, setCount] = React.useState(0);
const [name, setName] = React.useState('Guest');
React.useEffect(() => {
document.title = name + ': ' + count;
}, [name, count]);
return (
<div className="container">
<h1>🎯 Counter with Hooks</h1>
<div className="input-section">
<label>Your Name:</label>
<input
type="text"
value={name}
onChange={(e) => setName(e.target.value)}
placeholder="Enter name"
className="input"
/>
</div>
<div className="counter-section">
<div className="count-display">{count}</div>
<div className="buttons">
<button
onClick={() => setCount(count - 1)}
className="btn-decrement"
>
−
</button>
<button
onClick={() => setCount(count + 1)}
className="btn-increment"
>
+
</button>
</div>
</div>
<div className="info-box">
<div className="info-title">✨ Benefits of Hooks:</div>
<ul>
<li>• No class confusion</li>
<li>• No 'this' binding</li>
<li>• Cleaner code</li>
<li>• Easy to understand</li>
</ul>
</div>
<div className="info">
💡 Check the browser tab title!
</div>
</div>
);
}
const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(<Counter />);Loading preview...
Hooks let you use state and other React features in function components without classes.
All Hooks follow the naming convention of starting with "use" (useState, useEffect, etc.).
React provides many built-in Hooks for state, effects, context, refs, and performance.
Create your own Hooks to extract and share logic between components.