← React Intermediate Questions - Set 2 Q11

What is the `useRef` hook in React and how is it used?

React Intermediate Questions - Set 2

Example

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const inputRef = useRef(null);
inputRef.current.focus();       // DOM access
const timerRef = useRef(0);     // mutable value, no re-render

What to notice

• One hook, two uses: reaching the DOM, or keeping a value across renders.