🧒 Explain like I'm 5
Imagine you're building with LEGOs. Sometimes you want to start building a new tower right away (useTransition) and show a 'building' sign. Other times you get a new LEGO piece from a friend and you want to finish your current tower first before using it (useDeferredValue). Both help keep your play smooth and not freeze.
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Senior-level deep dive: internals, pitfalls, and a self-interview ladder.
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