usePrevious()

Question

Create a hook usePrevious() to return the previous value, with initial value of `undefined.

Code

export function usePrevious<T>(value: T): T | undefined {
  // your code here
}

// if you want to try your code on the right panel
// remember to export App() component like below

// export function App() {
//   return <div>your app</div>
// }

Source

Source From