Implementing Dark Mode in Next.js

Introduction

Dark mode has become increasingly popular among users for its reduced eye strain and improved readability in low-light environments. Implementing dark mode in a Next.js application involves adjusting your styles based on the user's preference. In this article, we'll explore different approaches to implement dark mode and ensure a seamless user experience.

Using CSS Variables

One effective method to implement dark mode is using CSS variables. Define variables for colors and apply different values for light and dark themes:

:root {
  --bg-color: #ffffff; /* Light mode background color */
  --text-color: #333333; /* Light mode text color */
}

.dark-mode {
  --bg-color: #333333; /* Dark mode background color */
  --text-color: #ffffff; /* Dark mode text color */
}

Toggle Switch

Provide users with a toggle switch to switch between light and dark modes. Use JavaScript or a state management library like Redux to toggle the CSS class:

function toggleDarkMode() {
  document.body.classList.toggle('dark-mode');
}

Using Next.js API Routes

Implement dark mode settings using Next.js API routes to persist user preferences. Store the theme preference in local storage or a database:

// Example Next.js API route
export default function handler(req, res) {
  const { method } = req;
  if (method === 'POST') {
    const { darkMode } = req.body;
    // Save darkMode preference
    res.status(200).json({ message: 'Dark mode preference saved' });
  }
}

Conclusion

Dark mode enhances user experience by providing a visually comfortable environment. Implementing dark mode in your Next.js application offers flexibility and improves accessibility for users in various lighting conditions. Consider user preferences and usability when integrating dark mode into your design.