使用带有 props 的子组件动态响应

React dynamically using sub-components with props

也许有更好的方法,但我尽量使我的 React 组件可重用。所以我正在使用 bootstrap Card 并且在这张 Card 中我想动态地从外部(使用道具)放置不同的组件。没有道具它工作正常。但是使用 props 我收到一条错误消息 "Error: Cannot find module '../../pages/Dummy'"。

这很完美:

import React, {Suspense} from 'react';
import { MDBCard, MDBCardBody } from "mdbreact";

const Area = (props) => {

    const OtherComponent = React.lazy(() => import('../../pages/Dummy'));

    return (
            <MDBCard className="text-center">
                <MDBCardBody>
                    <Suspense fallback={<div>Loading...</div>}>
                        <OtherComponent/>
                    </Suspense>
                </MDBCardBody>
            </MDBCard>
    );
};

export default Area;

这行不通:

import React, {Suspense} from 'react';
import { MDBCard, MDBCardBody } from "mdbreact";

const Area = (props) => {

    const OtherComponent = React.lazy(() => import(props.compName));

    return (
            <MDBCard className="text-center">
                <MDBCardBody>
                    <Suspense fallback={<div>Loading...</div>}>
                        <OtherComponent/>
                    </Suspense>
                </MDBCardBody>
            </MDBCard>
    );
};

export default Area;

外线来电:

<Area compName='../../pages/Dummy'/>

好像我不能延迟加载道具。很奇怪。

顺便说一句。如果有更简单的方法动态使用子组件,我就不需要使用延迟加载。我只是认为这是唯一的方法。

有几个选项:

第一个使用 'slots,',您可以在 React 文档中阅读 here, or an article here

const DummyOne = React.lazy(() => import('../../pages/DummyOne');
const DummyTwo = React.lazy(() => import('../../pages/DummyTwo');

const Area = ({ comp }) => {
  return (
    <MDBCard className="text-center">
      <MDBCardBody>
        <Suspense fallback={<div>Loading...</div>}>
          {comp}
        </Suspense>
      </MDBCardBody>
    </MDBCard>
  );
}

// You dynamically pass the component itself into 'Area'
<Area comp={<DummyOne />} />

第二个选项更接近于你所拥有的:

const Area = ({ compName }) => {
  const components = {
    DummyOne: React.lazy(() => import('../../pages/DummyOne'),
    DummyTwo: React.lazy(() => import('../../pages/DummyTwo'),
  }

  const DynamicComponent = components[compName];

  return (
    <MDBCard className="text-center">
      <MDBCardBody>
        <Suspense fallback={<div>Loading...</div>}>
          <DynamicComponent />
        </Suspense>
      </MDBCardBody>
    </MDBCard>
  );
}

// You dynamically pass the component name to 'Area' as a string
<Area compName="DummyOne" />