React多页面应用7(引入eslint代码检查)

前端人人

发布于 2018-04-11 17:14:26

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发布于 2018-04-11 17:14:26

文章被收录于专栏：前端人人

本教程总共7篇,每日更新一篇,请关注我们!你可以进入历史消息查看以往文章,也敬请期待我们的新文章!

1.React多页面应用1(webpack开发环境搭建,包括Babel、热更新等) ----2017.12.28

2.React多页面应用2(处理CSS及图片,引入postCSS及图片处理等)----2017.12.29

3.React多页面应用3(webpack性能提升,包括打包性能、提取公共包等)----2017.12.30

4.React多页面应用4(webpack自动化生成多入口页面)----2017.12.31

5.React多页面应用5(webpack生产环境配置,包括压缩js代码,图片转码等)----2018.01.01

6.React多页面应用6(gulp自动化发布到多个环境,生成版本号,打包成zip等)----2018.01.02

7.React多页面应用7(引入eslint代码检查)----2018.01.03

开发环境:Windows 8,node v8.9.1,npm 5.5.1,WebStorm 2017.2.2

团队开发,如何保持代码风格统一,引入eslint代码检查是一个不错的选择!

当然现在也有更好的替代方案就是微软的TypeScript,

今天先讲讲eslint

还是先引入依赖(注意安装命令太长, 复制后改成一行)

npm i -D eslint eslint-config-react-app eslint-loader eslint-plugin-flowtype 
eslint-plugin-import eslint-plugin-jsx-a11y@5.1.1 eslint-plugin-react 
react-dev-utils babel-eslint

修改 package.json

添加如下代码

"eslintConfig": {
  "extends": "react-app",
  "rules": {
    "import/no-webpack-loader-syntax": 0,
    "no-script-url": 0,
    "jsx-a11y/href-no-hash": 2
  }
}

修改 webpack.dev.conf.js

const webpack = require('webpack');//引入webpack
const opn = require('opn');//打开浏览器
const merge = require('webpack-merge');//webpack配置文件合并
const path = require("path");
const baseWebpackConfig = require("./webpack.base.conf");//基础配置
const webpackFile = require("./webpack.file.conf");//一些路径配置
const eslintFormatter = require('react-dev-utils/eslintFormatter');

let config = merge(baseWebpackConfig, {
    output: {
        path: path.resolve(webpackFile.devDirectory),
        filename: 'js/[name].js',
        chunkFilename: "js/[name]-[id].js",
        publicPath: ''
    },
    plugins: [
        /*设置开发环境*/
        new webpack.DefinePlugin({
            'process.env': {
                NODE_ENV: JSON.stringify('development'),
            }
        }),
        /*设置热更新*/
        new webpack.HotModuleReplacementPlugin(),
        /* common 业务公共代码，vendor引入第三方 */
        new webpack.optimize.CommonsChunkPlugin({
            name: ["common", "vendor"],
        }),
        /* 防止 vendor hash 变化 */
        // extract webpack runtime and module manifest to its own file in order to
        // prevent vendor hash from being updated whenever app bundle is updated
        new webpack.optimize.CommonsChunkPlugin({
            name: 'manifest',
            chunks: ['vendor']
        }),
    ],
    module: {
        rules: [
            {
                test: /\.(js|jsx)$/,
                use: [
                    'cache-loader',
                    'babel-loader',
                ],
                include: [
                    path.resolve(__dirname, "../../app"),
                    path.resolve(__dirname, "../../entryBuild")
                ],
                exclude: [
                    path.resolve(__dirname, "../../node_modules")
                ],
            },
            {
                test: /\.(js|jsx)$/,
                enforce: 'pre',
                use: [
                    {
                        options: {
                            formatter: eslintFormatter,
                            eslintPath: require.resolve('eslint'),
                            // @remove-on-eject-begin
                            baseConfig: {
                                extends: [require.resolve('eslint-config-react-app')],
                            },
                            //ignore: false,
                            useEslintrc: false,
                            // @remove-on-eject-end
                        },
                        loader: require.resolve('eslint-loader'),
                    },
                ],
                include: [
                    path.resolve(__dirname, "../../app")
                ],
                exclude: [
                    path.resolve(__dirname, "../../node_modules")
                ],
            },
            {
                test: /\.(css|pcss)$/,
                loader: 'style-loader?sourceMap!css-loader?sourceMap!postcss-loader?sourceMap',
                exclude: /node_modules/
            },
            {
                test: /\.(png|jpg|gif|ttf|eot|woff|woff2|svg|swf)$/,
                loader: 'file-loader?name=[name].[ext]&outputPath=' + webpackFile.resource + '/'
            }
        ]
    },
    /*设置api转发*/
    devServer: {
        host: '0.0.0.0',
        port: 8080,
        hot: true,
        inline: true,
        contentBase: path.resolve(webpackFile.devDirectory),
        historyApiFallback: true,
        disableHostCheck: true,
        proxy: [
            {
                context: ['/api/**', '/u/**'],
                target: 'http://192.168.12.100:8080/',
                secure: false
            }
        ],
        /*打开浏览器 并打开本项目网址*/
        after() {
            opn('http://localhost:' + this.port);
        }
    }
});
module.exports = config;

添加两处代码

引入

const eslintFormatter = require('react-dev-utils/eslintFormatter');

加入

{
    test: /\.(js|jsx)$/,
    enforce: 'pre',
    use: [
        {
            options: {
                formatter: eslintFormatter,
                eslintPath: require.resolve('eslint'),
                // @remove-on-eject-begin
                baseConfig: {
                    extends: [require.resolve('eslint-config-react-app')],
                },
                //ignore: false,
                useEslintrc: false,
                // @remove-on-eject-end
            },
            loader: require.resolve('eslint-loader'),
        },
    ],
    include: [
        path.resolve(__dirname, "../../app")
    ],
    exclude: [
        path.resolve(__dirname, "../../node_modules")
    ],
},