tailchat/usePrevious.ts at e318d71316e9b14766569b2993b2dacb6cac6508 - tailchat - Gitea: Git with a cup of tea

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 import { useEffect, useRef } from 'react';
 export function usePrevious<T>(state: T): T | undefined {
   const ref = useRef<T>();
   useEffect(() => {
     ref.current = state;
   });
   return ref.current;
 }