Learn-JavaScript/2. Variables integration.html at main · Sandeep6135/Learn-JavaScript · GitHub

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<!DOCTYPE html>
<html>

<head>
    <title>JS Variables State</title>
    <style>
        body {
            font-family: monospace;
            padding: 30px;
            line-height: 1.6;
        }

        button {
            padding: 8px 16px;
            cursor: pointer;
            margin-bottom: 20px;
            background: #ddd;
            border: 1px solid #000;
        }

        #output {
            border-left: 3px solid #333;
            padding-left: 15px;
        }

        .change {
            color: #d946ef;
            font-weight: bold;
        }
    </style>
</head>

<body>

    <h2>Variable Reassignment</h2>
    <button onclick="showVars()">Update Wallet</button>

    <div id="output">
        <i>Results will appear here...</i>
    </div>

    <script>
        function showVars() {
            // Constant value (cannot change)
            const userName = "Sandeep";

            // Initial value
            let wallet = 10000;
            let initialWallet = wallet; // Storing the original value to show you the difference

            // Reassignment (The change)
            wallet = wallet - 3000;

            document.getElementById("output").innerHTML = `
                <b>Name:</b> ${userName} (const)<br>
                <b>Original Wallet:</b> ₹${initialWallet}<br>
                <span class="change">Spent: ₹3000</span><br>
                <b>Current Wallet:</b> ₹${wallet} (let)
            `;
        }
    </script>

</body>

</html>