JavaScript/lesson-06/Exercise-6L.html at main · deep100x/JavaScript · GitHub

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<!-- in this lesson: -->
<!-- ------------------- -->
<!--

    Lesson 6 : Booleans & IF Else

    Exercise - 6L

-->

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Add to cart</title>
</head>

<body>

    <button onclick="
        console.log(`Cart Quantity : ${cartQuantity}`);
    ">
        Show Quantity
    </button>
    <button onclick="
        if (cartQuantity + 1 > 10) {
            alert('cart is full');
        }
        else {
            cartQuantity++;
            console.log(`Cart quantity : ${cartQuantity}`);
        }
    ">
        Add to Cart
    </button>
    <button onclick="
        if (cartQuantity + 2 > 10) {
            alert('the cart is full');
        }
        else {
            cartQuantity += 2;
            console.log(`Cart quantity : ${cartQuantity}`);
        }
    ">
        +2
    </button>
    <button onclick="
        if (cartQuantity + 3 > 10) {
            alert('the cart is full');
        }
        else {
            cartQuantity += 3;
            console.log(`Cart quantity : ${cartQuantity}`);
        }
    ">
        +3
    </button>
    <button onclick="
        if (cartQuantity - 2 < 0) {
            alert('Not enough items in the cart');
        }
        else {
            cartQuantity -= 2;
            console.log(`Cart quantity : ${cartQuantity}`);
        }
    ">
        -2
    </button>
    <button onclick="
        if (cartQuantity - 3 < 0) {
            alert('Not enough items in the cart');
        }
        else {
            cartQuantity -= 3;
            console.log(`Cart quantity : ${cartQuantity}`);
        }
    ">
        -3
    </button>
    <button onclick="
        cartQuantity = 0;
        console.log('Cart was reset');
        console.log(`Cart Quantity : ${cartQuantity}`);
    ">
        Reset Cart
    </button>


    <script>

        let cartQuantity = 0;

    </script>
</body>

</html>