useState vs useRef: a tricky React interview question

1. 1Create a React counter component using useState to store the current count
2. 2Use useRef to store the previous count value
3. 3Update the previous count value in the useRef on each render
4. 4Display both the current and previous count values in the component
5. 5Test the component to ensure it works as expected

React developers and frontend engineers can benefit from understanding the difference between useState and useRef to make informed decisions in their projects

💡 useState triggers re-renders on value changes, while useRef persists values between renders without triggering re-renders

💡 Use useState for state changes and useRef for persistent values that don't trigger re-renders #React #useState #useRef