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javascript - TS 错误：类型“未知”不可分配给类型“FunctionComponent”由于 withRouter

问题描述

我收到此错误

客户端：159 [at-loader] ./src/App.tsx:40:46 TS2322：类型“未知”不可分配给类型“FunctionComponent | 组件类 | 组件类，任意> | 功能组件> | 不明确的'。类型“未知”不可分配给类型“FunctionComponent>”。

在这个组件上：

import React, { FC, useState } from 'react';
import { Provider } from 'react-redux';
import { BrowserRouter, Route, Switch } from 'react-router-dom';
import User from './scenes/user/User';

const store = configureStore();

type IsOpen = boolean;

const App: FC = () => {
  const [sidebarOpen, setSidebarOpen] = useState<IsOpen>(false);

  return (
    <Provider store={store}>
      <BrowserRouter>
        <Sidebar
          open={sidebarOpen}
          sidebar={<PrimaryNav closeNav={() => setSidebarOpen(false)} />}
          onSetOpen={setSidebarOpen}
          styles={{ sidebar: { background: 'black' } }}>
          <Header sidebarOpen={sidebarOpen} onSetSidebarOpen={setSidebarOpen} />
          <Switch>
            <Route exact={true} path='/' component={NewsArticles} />
            <Route exact={true} path='/user' component={User} />
            <Route path='/user/:id' component={User} />
          </Switch>
        </Sidebar>
      </BrowserRouter>
    </Provider>
  );
};

export default App;

在这两条线上

            <Route exact={true} path='/user' component={User} />
            <Route path='/user/:id' component={User} />

这是用户组件：

import React, { FC, useEffect } from 'react';

import { withRouter } from 'react-router-dom';

type Props = {
  match: any;
  history: any;
  location: any;
  withRouter: any;
  fetchUsers?: any;
  users?: UserInfoModel[];
};

const mapState = (state: UsersAppState, props: Props) => {
  return {
    users: state.usersReducers.users,
    ...props
  };
};

const actionCreators = {
  fetchUsers
};

const User: FC<Props> = props => {
  const { history, users, location, match, fetchUsers } = props;

  const setID = match.params.hasOwnProperty('id') ? match.params.id : 'AbedA';

  const handleFetch = () => {
    return fetchUsers(setID);
  };

  useEffect(() => {
    if (!users || !users.length) {
      handleFetch();
    }
  }, []);

  useEffect(() => {
    handleFetch();
  }, [location.pathname, match.params.id]);

  return (
    <UserContainer history={history} fetchUsers={() => fetchUsers(setID)} users={users} profilePicture={profileImg} />
  );
};

export default compose(
  connect(
    mapState,
    actionCreators
  ),
  withRouter
)(User);

我提出的每一件事react-router/react-router-dom都带有错误。

如果我删除withRouter错误就消失了。

我究竟做错了什么？

标签： javascriptreactjstypescriptecmascript-6react-router

解决方案

您可以像这样解决错误：

export default compose<React.ComponentType<Props>>(
  connect(
    mapState,
    actionCreators
  ),
  withRouter
)(User);

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