了解为什么在React类组件中不推荐使用super() [英] Understanding why super() is deprecated in a React class component
问题描述
我是React的新手,我正在使用最新版本的React学习关于React组件生命周期的信息。我的超级以下部分代码的调用会标有已弃用的警告标记。我很难理解这一点,因为那里有很多文档仍然使用 super,而且即使从反馈中链接的全文中也无法确定后继者是什么。有任何想法吗?
I'm new to React and I'm learning about the React component lifecycle with the latest version of React. My "super" call of the partial code below is flagged with the deprecated warning shown. I've had trouble understanding this one, as a lot of documentation out there still uses "super", and I'm not sure what the successor is, even from the full article linked in the feedback. Any ideas? Thanks.
class App extends Component {
constructor(props) {
super(props);
}
}
这是警告:
constructor React.Component<any, any, any>(props: any, context?: any): React:Component<any, any, any> (+1 overload)
@deprecated
@see - https://reactjs.org/docs/legacy-context.html
'(props: any, context?: any): Component<any, any, any>' is deprecated ts(6385)
推荐答案
似乎已弃用了可选的context参数,因为它引用了旧版React上下文(v16.3之前的版本)。您使用的是哪个版本的React?
It looks like the optional context parameter is deprecated because it refers to the legacy React context (pre v16.3). What version of React are you using?
https:// reactjs.org/docs/legacy-context.html
我还没有使用React与TypeScript。也许React映射已过期。
I have not used React with TypeScript. Maybe React mappings are out of date.
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