根组件为 React.component

Question

我正在使用 react-boilerplate and I'm trying to change the App component to extend React.Component, since I'm trying to implement authentication and displaying/showing side menu depending on authentication state by following this example。如您所见，最初 props 是通过 props 参数传递给 App 的。我已经将 App/index.js class 更改为：

import React from 'react';
import Header from 'components/Header';
import SideMenu from 'containers/SideMenu';
import Footer from 'components/Footer';
import auth from 'utils/auth'

export class App extends React.Component {
  render() {
  console.log(props)
  return (
      <div>
        <Header />
        <SideMenu />
        {React.Children.toArray(props.children)}
        <Footer />
      </div>
    );
  }
}

App.propTypes = {
  children: React.PropTypes.node,
};

export default App;

这会抛出一个错误，即 props 没有被定义：

ReferenceError: props is not defined App.render **/App/index.js

可以看到根路由是如何实例化的here:

// Set up the router, wrapping all Routes in the App component
import App from 'containers/App';
import createRoutes from './routes';
const rootRoute = {
  component: App,
  childRoutes: createRoutes(store),
};

如有任何帮助，我们将不胜感激。

Answer 1

使用：

this.props.children

你也不需要将子项更改为数组

只需使用：

 {this.props.children}

根组件为 React.component

Root component as React.component

javascript

node.js

reactjs

react-boilerplate