javascript - 将 props 从 App 类传递到 const 函数组件 React TypeScript
我正在尝试用 Expo 创建一个 React Native 应用。我在将 props 从 App 类传递到我的类型为 const 函数的组件 “Navigator” 时遇到了逻辑错误。我不确定应该如何传递 props,或者如何在不从 App 传递的情况下访问它们:
App.tsx
import React, {useState} from 'react';
import { NavigationContainer, StackActions } from '@react-navigation/native';
import Navigator from './Components/Navigator';
export default class App extends React.Component {
render(){
return (
<NavigationContainer>
<Navigator props={this.props}/>
</NavigationContainer>
);
}
}
导航器.tsx
import React from 'react'
import { createStackNavigator } from '@react-navigation/stack'
import Login from '../Views/Login'
import Home from '../Views/Home'
const Stack = createStackNavigator();
function Navigator({props}){
return (
<Stack.Navigator>
<Stack.Screen name="Login" options={{title:'Login.'}}>
{(props) => <Login {...props} />}
</Stack.Screen>
<Stack.Screen name="Home" component={Home} options={{title:'Home.'}}/>
</Stack.Navigator>
);
}
export default Navigator;
我有错误:未定义的对象(props)
答案#1
这是因为你在进行解构
那么当你调用 props 时,就像在做 props.props
function Navigator(props){// remove { } from this line
