Reactstrap Card 组件抛出错误

Question

问题出在 reactstrap 卡上：https://reactstrap.github.io/components/card/

使用卡片等 reactstrap 组件无效。

组件：版本 I

import React, { Component } from 'react';
import { Card, Button, CardImg, CardTitle, CardText, CardDeck, CardSubtitle, CardBody } from 'reactstrap';

class MoviesIndex extends Component {

    render() {
        return (
            <CardDeck>
                <Card>
                    <CardImg top width="100%" src="" alt="Movie Poster" />
                </Card>
            </CardDeck>
        );
    }
}

export default MoviesIndex;

输出： *它工作正常，没有任何错误。

但是当我尝试使用 reactstrap 的其余组件时。它在控制台上抛出错误。

组件：版本 II

import React, { Component } from 'react';
import { Card, Button, CardImg, CardTitle, CardText, CardDeck, CardSubtitle, CardBody } from 'reactstrap';

class MoviesIndex extends Component {

    render() {
        return (
            <CardDeck>
                <Card>
                    <CardImg top width="100%" src="" alt="Movie Poster" />
                    <CardBody>
                        <CardTitle>Card title</CardTitle>
                        <CardSubtitle>Card subtitle</CardSubtitle>
                        <CardText>This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</CardText>
                        <Button>Button</Button>
                    </CardBody>
                </Card>
            </CardDeck>
        );
    }
}

export default MoviesIndex;

输出：

package.json

{
  "name": "client",
  "version": "1.0.0",
  "main": "index.js",
  "scripts": {
    "start": "node ./node_modules/webpack-dev-server/bin/webpack-dev-server.js",
    "test": "mocha --compilers js:babel-core/register --require ./test/test_helper.js --recursive ./test",
    "test:watch": "npm run test -- --watch"
  },
  "devDependencies": {
    "babel-core": "^6.2.1",
    "babel-loader": "^6.2.0",
    "babel-preset-es2015": "^6.1.18",
    "babel-preset-react": "^6.1.18",
    "chai": "^3.5.0",
    "chai-jquery": "^2.0.0",
    "jquery": "^2.2.1",
    "jsdom": "^8.1.0",
    "mocha": "^2.4.5",
    "react-addons-test-utils": "^0.14.7",
    "webpack": "^1.12.9",
    "webpack-dev-server": "^1.14.0"
  },
  "dependencies": {
    "axios": "^0.17.1",
    "babel-preset-stage-1": "^6.1.18",
    "lodash": "^3.10.1",
    "react": "^16.2.0",
    "react-dom": "^16.2.0",
    "react-redux": "^5.0.6",
    "react-router": "^4.2.0",
    "react-transition-group": "^2.2.1",
    "reactstrap": "^4.8.0",
    "redux": "^3.7.2",
    "redux-promise": "^0.5.3"
  }
}

我无法调试这个问题。请帮忙！ TIA.

Answer 1

这看起来像是打字错误：

renderMovies() {
        return _.map(this.props.movies, movie => {

失踪)

尝试

_.map(this.props.movies, movie) => {

如果不行，把 console.log() 放在所有内容之后，看看它变成 undefined.

此类错误通常是由于某些内容未正确导出或某些内容 null/undefined 由于数据丢失等原因造成的。

这是我推荐使用 ES Lint 的好机会，因此您可以从被动显示错误中获得 24/7 全天候的额外帮助。如果您不使用它，请检查一下。绝对值得研究和使用。

我不会在这里推荐任何特定的 linting 配置。这超出了本帮助的范围。 ES Lint 会用红色下划线来强调代码错误，例如缺少 )，所以你会少遇到这种事情:)

Answer 2

CardBody 等组件在 v4.8.0 中不可用。

升级到最新版本 (reactstrap v5.0.0-alpha.4) 解决了这个问题！

npm install --save reactstrap@5.0.0-alpha.4

请参阅我在 reactstrap@github 上创建的问题以获取更多详细信息： https://github.com/reactstrap/reactstrap/issues/730

Reactstrap Card 组件抛出错误

Reactstrap Card component throws error

reactjs

reactstrap