Dark mode improves user experience by reducing eye strain in low-light environments and has become an essential feature for modern web applications. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented dark mode in Vue applications throughout my 11 years of frontend development. The most effective approach is using Vue 3 Composition API with reactive state and CSS custom properties for theme switching. This method enables smooth theme transitions, persists user preferences, and maintains clean separation between logic and styling.

Detecting the user’s dark mode preference allows you to provide a better user experience by respecting their system settings. As the creator of CoreUI with over 25 years of JavaScript development experience, I’ve implemented dark mode detection in countless production applications. The most reliable solution is to use the window.matchMedia() API to check the prefers-color-scheme media query. This method works across all modern browsers and respects the user’s operating system preferences.

Implementing dark mode enhances user experience by providing eye-friendly viewing options and modern application aesthetics. As the creator of CoreUI with 25 years of development experience, I’ve implemented dark mode in numerous enterprise applications. The most robust approach uses React Context API for global theme state management combined with CSS custom properties for seamless theme switching. This method ensures consistent theming across all components while maintaining user preferences.

Implementing dark mode in React applications improves user experience by reducing eye strain and providing visual preferences that adapt to user environments. As the creator of CoreUI with over 25 years of development experience, I’ve built theme switching systems across numerous production applications. The most effective approach is using React Context with CSS custom properties and localStorage persistence for consistent theme management. This provides seamless theme switching with proper state management and user preference persistence across browser sessions.