How to Fix React Stale Closures Overwriting LocalStorage (with useRef & Unmount Saves)
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Frontend
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13 min read
You build a stateful React or Next.js application—a multi-step checkout form, an interactive quiz, or an active flashcard deck. The user interacts with the UI, modifies state, and answers questions. But the moment they navigate to another page, unmount the component, or close the browser tab, their entire session vanishes—or worse, gets overwritten in localStorage … Continued