MSC(CS) FSD-1 Practical 3- Email validation

 <!DOCTYPE html>

<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Login Form</title>
    <script>
        // ES6 function to validate form fields
        const validateForm = () => {
            let isValid = true;

            // Get input values
            const email = document.getElementById('email').value.trim();

            // Get error element
            const emailError = document.getElementById('emailError');

            // Reset error message
            emailError.textContent = '';

            // Regular Expression for validating email
            const emailRegex = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,3}$/;

            // Validate email
            if (!email || !emailRegex.test(email)) {
                emailError.textContent = 'Please enter a valid email address.';
                isValid = false;
            }

            // If the form is valid, show success message
            if (isValid) {
                alert('Login Successful!');
                document.getElementById('loginForm').reset(); // Clear the form
            }
        };
    </script>
</head>
<body>
    <h2>Login Form</h2>
    <form id="loginForm">
        <label for="email">Email:</label>
        <input type="email" id="email" placeholder="Enter your email">
        <span id="emailError" style="color:red;"></span>
        <br><br>

        <label for="password">Password:</label>
        <input type="password" id="password" placeholder="Enter your password">
        <br><br>

        <button type="button" onclick="validateForm()">Login</button>
    </form>
</body>
</html>

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