Question

在使用以下代码创建的javascript文件中：

import React, {Component, Fragment} from "react"
import PropTypes from  "prop-types"

export default class DefaultBootstrap extends Component {
  render() { return (<div>Hi</div>) }
}

DefaultBootstrap.propTypes = {
  name: PropTypes.bool.isRequired
}

当我运行npm start时，它显示了以下linter错误：

xxx/xxx/index.js
  1:1  warning  Definition for rule 'prop-types' was not found  prop-types

所以我的问题是，即使我在上面定义了prop-types规则，为什么也向我显示以上警告？

我使用Webpack，Babel，React和Eslinter来设置我的应用程序。

.eslintrc.json

{
  "parser": "babel-eslint",
  "plugins": ["react"],
  "rules": {
    "prop-types": ["warn"],
  }
}

package.json (Click To See Complete File)

{
  "devDependencies": {
    "@babel/core": "7.1.2",
    "babel-eslint": "10.0.1",
    "babel-loader": "8.0.4",
    "eslint": "5.6.1",
    "eslint-loader": "2.1.1",
    "eslint-plugin-react": "7.11.1",
    "webpack": "4.20.2",
    "webpack-cli": "^3.1.0",
    "webpack-dev-server": "^3.1.5"
  },
  "dependencies": {
    "node": "^10.11.0",
    "prop-types": "15.6.2",
    "react": "16.5.2",
    "react-dom": "16.5.2",
    "react-scripts": "2.0.3",
  }
}

webpack.config.js (Click here To See Complete File)

    rules: [
        {
          test: /\.m?js$/,
          exclude: /(node_modules|bower_components)/,
          use: {
            loader: 'babel-loader',
            options: {
              presets: ['@babel/preset-env']
            }
          }
        },
        {
          test: /\.js$/,
          exclude: /node_modules/,
          use: ['babel-loader', 'eslint-loader']
        },

Answer 1

在查看您的代码之前，ESLint首先要寻找prop-types规则的实现。错误消息说它找不到该规则。由于prop-types规则由插件eslint-plugin-react提供，并且不是内置规则之一，因此您需要在.eslintrc.json中用插件名称作为前缀和斜杠：react/prop-types。这告诉ESLint应该在prop-types内查找eslint-plugin-react规则。

{
  "parser": "babel-eslint",
  "plugins": ["react"],
  "rules": {
    "react/prop-types": ["warn"],
  }
}

您可以在rule configuration docs中阅读更多内容。

Eslinter未检测到反应组件的定义道具类型

1 个答案: