wt_3_js_validation

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Form Validation</title>
</head>
<body>
    <center>
    <form id="registrationForm">
        <h1>Registration Form</h1>
        <input type="text" id="mobile" name="mobile" placeholder="Mobile Number" required>
        <div id="mobileError" class="error"></div>
        <input type="email" id="email" name="email" placeholder="Email Address" required>
        <div id="emailError" class="error"></div>
        <input type="password" id="password" name="password" placeholder="Password" required>
        <input type="password" id="confirmPassword" name="confirmPassword" placeholder="Confirm Password" required>
        <div id="passwordError" class="error"></div>
        <button type="submit">Register</button>
    </form>
    </center>

    <script>
        function validateMobile(mobile) {
            const mobileRegex = /^[0-9]{10}$/;
            return mobileRegex.test(mobile);
        }
        function validateEmail(email) {
            const emailRegex = /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/;
            return emailRegex.test(email);
        }
        function validatePassword(password, confirmPassword) {
            return password === confirmPassword;
        }
        document.getElementById('registrationForm').addEventListener('submit', function(event) {
            event.preventDefault();
            const mobile = document.getElementById('mobile').value;
            const email = document.getElementById('email').value;
            const password = document.getElementById('password').value;
            const confirmPassword = document.getElementById('confirmPassword').value;
            document.getElementById('mobileError').textContent = '';
            document.getElementById('emailError').textContent = '';
            document.getElementById('passwordError').textContent = '';
            let isValid = true;
            if (!validateMobile(mobile)) {
                document.getElementById('mobileError').textContent = 'Invalid mobile number. Must be 10 digits.';
                isValid = false;
            }
            if (!validateEmail(email)) {
                document.getElementById('emailError').textContent = 'Invalid email format.';
                isValid = false;
            }
            if (!validatePassword(password, confirmPassword)) {
                document.getElementById('passwordError').textContent = 'Passwords do not match.';
                isValid = false;
            }
            if (isValid) {
                alert('Form submitted successfully!');
            }
        });
    </script>

</body>
</html>