Toggling Password Visibility Using JavaScript

When dealing with password input fields in web forms, it's common to provide users with the option to toggle the visibility of their entered password.

JavaScript can be used to dynamically change the input type of a password field, making it visible or hidden.

In this article, we'll explore how to implement a password visibility toggle using JavaScript.

The Password Input Element

In HTML, a password input field is created using the <input> element with the type attribute set to "password". This ensures that the entered text is obscured for security reasons.

We'll use JavaScript to toggle the type attribute between "password" and "text" to control the visibility of the password.

<label for="password">Password:</label>
<input type="password" id="password" name="password">
<button id="togglePassword">Toggle Visibility</button>

In this code:

Toggling Password Visibility with JavaScript

Let's create a JavaScript function to toggle the visibility of the password:

// Function to toggle password visibility
function togglePasswordVisibility() {
  const passwordInput = document.getElementById('password');

  // Toggle the input type between "password" and "text"
  passwordInput.type = passwordInput.type === 'password' ? 'text' : 'password';
}

// Add an event listener to the toggle button
const toggleButton = document.getElementById('togglePassword');
toggleButton.addEventListener('click', togglePasswordVisibility);

In this code:

Example: Password Visibility Toggle

Let's create a complete example where we integrate the password visibility toggle functionality:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Password Visibility Toggle Example</title>
  <style>
    /* Optional styling for better presentation */
    body {
      display: flex;
      align-items: center;
      justify-content: center;
      height: 100vh;
      margin: 0;
    }

    label {
      margin-right: 8px;
    }
  </style>
</head>
<body>

  <label for="password">Password:</label>
  <input type="password" id="password" name="password">
  <button id="togglePassword">Toggle Visibility</button>

  <script>
    // Function to toggle password visibility
    function togglePasswordVisibility() {
      const passwordInput = document.getElementById('password');

      // Toggle the input type between "password" and "text"
      passwordInput.type = passwordInput.type === 'password' ? 'text' : 'password';
    }

    // Add an event listener to the toggle button
    const toggleButton = document.getElementById('togglePassword');
    toggleButton.addEventListener('click', togglePasswordVisibility);
  </script>
</body>
</html>

In this example:

Conclusion

Implementing a password visibility toggle using JavaScript enhances the user experience by providing a way for users to view or hide their entered password.

Leveraging the type attribute of the password input field, you can dynamically switch between obscured and visible text.

Integrate this feature into your login or registration forms to offer flexibility and convenience to your users while maintaining the necessary security measures.