From the course: Master React 19 and Next.js 16 with Hands-On Projects and Real-World Applications

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React context review: Common mistakes and best practices

React context review: Common mistakes and best practices

From the course: Master React 19 and Next.js 16 with Hands-On Projects and Real-World Applications

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React context review: Common mistakes and best practices

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Welcome back! In this session, we're reviewing the React Context chapter. Context is a powerful feature for passing data deeply through your component tree without prop drilling. We'll explore setting up context, consuming it in child components, and best practices to avoid common pitfalls. Let's dive in! Here we create a new context using createContext. The default value is usually null or a fallback object. Remember, this is just the context itself, it doesn't provide any data yet. Always define a clear type of what will be shared to help avoid type-related bugs later. Next, we wrap our component tree with userContext.provider. The value prop is what will be available to any descendant component that consumes this context. A common mistake is to forget the provider, which will make useContext return the default value or null. Here, useContext allows us to consume the user data directly inside Grandchild without passing props through parent and child. First practice. Use context at…

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