How do default props work in React?
You can provide default values for props so the component behaves sensibly when a parent does not pass them. This makes components more robust and prevents undefined-related bugs.
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More FAQs in What Are Props in React and How Do They Work?
Props are inputs passed from a parent component to a child component. They work like function arguments: the parent passes values, and the child receives them as an object and uses them to render.
Yes. A child should never modify its own props. Props flow down from the parent. If data needs to change, the parent updates it and passes new props down. This one-way data flow is core to React.
Anything: strings, numbers, arrays, objects, functions, or even other React elements. Passing functions as props is how a child component communicates events back up to its parent.
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