// freeCodeCamp · 5 February 2026

Why Your UI Won’t Update: Debugging Stale Data and Caching in React Apps

Your UI doesn’t “randomly” refuse to update. In most cases, it’s rendering cached data, which is data that was saved somewhere so the app doesn’t have to do the same work again. Caching is great for performance, but it becomes a pain when you don’t r...

freeCodeCamp

@freecodecamp · Oluwadamisi Samuel

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