Learn-JavaScript/12. Object.html at main · Sandeep6135/Learn-JavaScript · GitHub

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

<head>
    <meta charset="UTF-8">
    <title>JS Objects Explorer</title>
    <style>
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #eef2f3;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
        }

        .card {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            width: 350px;
            text-align: center;
        }

        h2 {
            color: #2c3e50;
            margin-bottom: 1.5rem;
        }

        button {
            background: #6366f1;
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.3s;
            width: 100%;
        }

        button:hover {
            background: #4f46e5;
            transform: translateY(-2px);
        }

        #output {
            margin-top: 1.5rem;
            text-align: left;
            border-top: 1px solid #eee;
            padding-top: 1rem;
            display: none;
        }

        .info-row {
            display: flex;
            justify-content: space-between;
            margin-bottom: 8px;
            font-size: 0.95rem;
        }

        .label {
            font-weight: bold;
            color: #64748b;
            text-transform: capitalize;
        }
    </style>
</head>

<body>

    <div class="card">
        <h2>Student Profile</h2>
        <button onclick="toggleInfo()">View Student Details</button>
        <div id="output"></div>
    </div>

    <script>
        function toggleInfo() {
            const outputDiv = document.getElementById("output");

            // 1. Defining the Object (Fixed Syntax)
            const student = {
                name: "Sandeep",
                age: 18,
                course: "Unethical Hacking",
                city: "Samsung Galaxy",
                grade: "Z+ Security"
            };

            // 2. Optimization: Using Template Literals (backticks ``) instead of string concatenation
            let htmlContent = "";

            for (let key in student) {
                htmlContent += `
            <div class="info-row">
                <span class="label">${key}:</span>
                <span class="value">${student[key]}</span>
            </div>`;
            }

            outputDiv.innerHTML = htmlContent;

            // Simple toggle logic
            outputDiv.style.display = (outputDiv.style.display === "block") ? "none" : "block";
        }
    </script>

</body>

</html>