react.js
A JavaScript library for building user interfacesreact.js
A JavaScript library for building user interfacesreact.js
class ShoppingList extends React.Component {
render() {
return (
<div className="shopping-list">
<h1>Shopping List for {this.props.name}</h1>
<ul>
<li>Instagram</li>
<li>WhatsApp</li>
<li>Oculus</li>
</ul>
</div>
);
}
}
// Example usage: <ShoppingList name="Mark" />react js
function Cart() {
const monsteraPrice = 8
const [cart, updateCart] = useState(0)
const [isOpen, setIsOpen] = useState(false)
return isOpen ? (
<div className='lmj-cart'>
<button onClick={() => setIsOpen(false)}>Fermer</button>
<h2>Panier</h2>
<div>
Monstera : {monsteraPrice}€
<button onClick={() => updateCart(cart + 1)}>
Ajouter
</button>
</div>
<h3>Total : {monsteraPrice * cart}€</h3>
</div>
) : (
<button onClick={() => setIsOpen(true)}>Ouvrir le Panier</button>
)
}react js
// use npm package manager
npx create-react-app my-app --use-npmCopyright © 2021 Codeinu
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