Beginner LevelReact JS & React 19
How does React 19 simplify ref handling by making ref a standard prop?
❓ Interview Prompt: Explain React 19 `ref` prop support, passing refs to functional components as standard props, and deprecation of `forwardRef`.
In React 19, 'ref' is now a standard prop for functional components!
Deprecation of 'forwardRef':
•
Before React 19: Passing a 'ref' to a functional component required wrapping it in 'React.forwardRef((props, ref) => ...)'.
•
React 19: Functional components accept 'ref' directly as a regular prop ('function MyInput({ ref, label })'). 'React.forwardRef' is officially deprecated and will be removed in future versions!
Code Implementation Example
jsx
// React 19: ref is a standard prop! No forwardRef needed!
function CustomInput({ ref, label, ...props }) {
return (
<label>
{label}
<input ref={ref} {...props} />
</label>
);
}
// Parent component passes ref normally:
function Form() {
const inputRef = useRef(null);
return <CustomInput ref={inputRef} label="Username" />;
}💡Passing refs directly as standard props in React 19 without forwardRef.
🎯 Interview Key Takeaway
React 19 allows passing 'ref' directly as a standard prop to functional components, deprecating React.forwardRef.
#React 19#ref#forwardRef#Hooks#Beginner
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