Context as a Provider
Learn how to use React 19’s context provider syntax correctly, pass real values (not JSX) through context, and structure small provider components that keep your app clean and composable.
React applications often need to share data, such as theme, user information, or language preferences, across deeply nested components. Without a shared mechanism, this results in repetitive prop drilling and scattered logic. React’s Context API solves this by allowing components to access shared values without manually passing props, and introduces a cleaner way to declare providers that makes your code more intuitive and maintainable.
What a context provider does
A provider makes a value accessible to all components inside its tree. The value can be a string, number, object, or function, and React simply stores whatever you pass ...