How to Implement Dark Mode in React/Next.js Using Sass

Dark mode has become a popular feature in web applications, providing users with a more comfortable and visually pleasing experience, especially in low-light environments. In this article, we will explore how to implement dark mode in a React/Next.js application using Sass.

Step 1: Setup Your React/Next.js Application

If you haven’t already, create a new React/Next.js application using npx create-next-app. Once your application is set up, navigate to the styles directory and create a new file called _dark-mode.scss.

Step 2: Define Dark Mode Styles

Inside _dark-mode.scss, define the styles for dark mode. This may include changing the background color, text color, and any other relevant styles. For example:


body {
background-color: #111;
color: #fff;
}


Step 3: Implement a Dark Mode Toggle

In the component where you want to implement dark mode, add a state variable to track whether dark mode is enabled. Then, create a function to toggle the dark mode state. For example:


import { useState } from 'react';

export default function MyComponent() {
const [darkMode, setDarkMode] = useState(false);

const toggleDarkMode = () => {
setDarkMode(!darkMode);
}

return (

My Component

Toggle Dark Mode

);
}


Step 4: Import the Dark Mode Styles

Finally, import the _dark-mode.scss file into your main Sass file and apply the styles conditionally based on the state of dark mode. For example:


@import 'dark-mode.scss';

.dark-mode {
@import 'dark-mode';
}


Conclusion

By following these steps, you can easily implement dark mode in your React/Next.js application using Sass. This will provide your users with a more comfortable and customizable experience, and can be a great addition to your application’s design.