Скачать или смотреть Event Handling in React: Props, State & Data Flow Explained

Event handling via props is a core React pattern where a parent component passes an event handler function to a child component through props.

This allows the child to notify the parent about user actions (like clicks, input changes, or form submissions) while keeping the state and business logic in the parent.

This approach follows unidirectional data flow, improves reusability, and keeps components clean and predictable.


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🧠 How It Works (Concept)

1. Parent defines a function (event handler)

2. Parent passes the function as a prop

3. Child triggers the function on an event

4. Parent updates state or performs logic

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✅ Why Use Event Handling via Props?

✔ Maintains single source of truth

✔ Encourages component reusability

✔ Clear parent–child communication

✔ Easier to test and debug

✔ Commonly asked React interview concept


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