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CartQuantity.html
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CartQuantity.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<button onclick="
console.log(`Cart quantity: ${cartQuantity}`);
">Show Quantity</button>
<button onclick="
if (cartQuantity + 1 > 10) {
alert('The cart is full');
} else {
cartQuantity++;
console.log(`Cart quantity: ${cartQuantity}`);
}
">Add to Cart</button>
<button onclick="
updateCartQuantity(2)
">+2</button>
<button onclick="
updateCartQuantity(3)
">+3</button>
<button onclick="
updateCartQuantity(4)
">+4</button>
<button onclick="
updateCartQuantity(5)
">+5</button>
<!-- vvv This code was changed. vvv -->
<button onclick="
if (cartQuantity - 1 < 0) {
alert('Not enough items in the cart');
} else {
cartQuantity--;
console.log(`Cart quantity: ${cartQuantity}`);
}
">Remove from cart</button>
<button onclick="
updateCartQuantity(-2)
">-2</button>
<button onclick="
updateCartQuantity(-3)
">-3</button>
<!-- ^^^ This code was changed. ^^^ -->
<button onclick="
cartQuantity = 0;
console.log('Cart was reset.');
console.log(`Cart quantity: ${cartQuantity}`);
">Reset Cart</button>
<script>
let cartQuantity = 0;
function updateCartQuantity(value){
if (cartQuantity + value > 10){
alert('The Cart is full');
} else if (cartQuantity + value < 0){
alert('Not enough items in the cart')
} else{
cartQuantity += value;
console.log(`Cart Quantity: ${cartQuantity}`)
}
}
</script>
</body>
</html>
</body>
</html>