import React from "react"; function Btn({ text, IfYouPressBtn }) { return ( {text} ); } const MemorizedBtn = React.memo(Btn); //여기 function App() { const [value, setValue] = React.useState("Save Changes"); const changeValue = () => setValue("Revert Changes"); return ( {/* usestate에서 st...
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memo
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react
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reactmemo
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리소스줄이기
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최적화