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Rendering React components to the document body

React一个比较好用的功能是其简单的API,一个组件可以简单到一个return了组件结构的render函数.除了一个简单的函数之外,我们还有了一段有用且可复用的代码片段. 问题 不过有时候可能会受到限制. 特别是,实际上这个API返回的是一个没有限制dom挂载在何处的组件,这就使得一些popup组件比较困难去实现.如果父元素限制了oerflow为hidden.就像下面这个例子一样 实际上我们想要的是这样的: 解决 幸运的是有一种相当优雅的方式来达到目的,尽管该方式并不太常见. 作为每个人最早学…

React Components之间的通信方式了解下

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