About Lesson
React Context API for Theme Switching
The React Context API provides an efficient way to manage global state, making it ideal for implementing a theme switcher in a React application. Instead of passing props through multiple components, Context allows you to provide and consume theme values directly.
Steps to Implement:
- Create a Theme Context: Use
createContext()
to define a theme context. - Build a Provider Component: Store the theme state (
light
ordark
) and provide a function to toggle it. - Consume Context in Components: Use
useContext(ThemeContext)
to access and apply the theme dynamically.
Benefits:
- Eliminates prop drilling for theme data.
- Improves performance with efficient state management.
- Ensures a consistent theme across the app.
Using Context API with useState
and useEffect
simplifies theme switching, making React applications more user-friendly and maintainable.