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说一下 React.Component 和 Ract.PureComponent 的区别 #312

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lgwebdream opened this issue Jul 6, 2020 · 2 comments

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React 有赞酷家乐高德

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lgwebdream commented Jul 6, 2020

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lgwebdream commented Jul 6, 2020

扫描下方二维码，获取答案以及详细解析，同时可解锁800+道前端面试题。

LoveWei0 commented Jun 11, 2023

Component只要state变就会重新渲染
PureComponent是通过浅比较来实现shouldComponentUpdate,当prop或state的值或引用地址发生改变时,组件就会发生更新

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