React · question
Question 10 of 108
What are props in React?
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Re-explain
Props (short for properties) are read-only inputs passed from parent components to child components. They allow data to flow down the component tree.
// Parent component
function App() {
return <Welcome name="John" age={25} />;
}
// Child component
function Welcome(props) {
return <h1>Hello, {props.name}! You are {props.age} years old.</h1>;
}
Props characteristics:
- Read-only (immutable)
- Passed from parent to child
- Can be any JavaScript value (strings, numbers, objects, functions, etc.)
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