State sync: the UI works locally, but the moment you add a server, you're managing two sources of truth that can drift apart, conflict, or silently overwrite each other. Even on the front end alone, the moment you introduce a separate state object, you have two representations of the same data — the DOM and the model — that can fall out of sync in subtle, hard-to-debug ways.
Первое свидание двух коллег закончилось за считанные минуты по неожиданной причине02:30
。safew对此有专业解读
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