List common use cases advantages and disadvantages of context api
It provides a way to pass data through the component tree without having to pass props manually at each level thus It solves the problem of prop drilling.
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Built into React, so no additional libraries are required.
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Offers a convenient way to share state without intermediary components.
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Simple, easy to learn and less boilerplate code
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Might not be suitable for applications with highly complex state management needs.
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This can lead to performance issues if not used carefully due to excessive re-renders.
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Limited features compared to dedicated state management libraries like Redux and MobX.
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It re-renders all components whenever there is any update in the provider’s value prop unlike redux which only re-renders the updated components.
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Theming: If your app lets the user change its appearance (e.g. dark mode), you can put a context provider at the top of your app, and use that context in components that need to adjust their visual look.
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Current account and user information: Many components might need to know the currently logged-in user. Putting it in context makes it convenient to read it anywhere in the tree
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Managing state: As your app grows, you might end up with a lot of state closer to the top of your app. Many distant components below may want to change it. It is common to use a reducer together with context to manage complex state and pass it down to distant components without too much hassle.
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Context is not limited to static values. If you pass a different value on the next render, React will update all the components reading it below! This is why context is often used in combination with state.
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Context lets the parent component make some information available to any component in the tree below it—no matter how deep—without passing it explicitly through props.