vue-cli3.0配置及使用注意事项详解

# 安装
npm install -g @vue/cli
# 新建项目
vue create my-project
# 项目启动
npm run serve
# 打包
npm run build

module.exports = {
 // 基本路径
 baseUrl: '/',
 // 输出文件目录
 outputDir: 'dist',
 // eslint-loader 是否在保存的时候检查
 lintOnSave: true,
 // use the full build with in-browser compiler?
 // https://vuejs.org/v2/guide/installation.html#Runtime-Compiler-vs-Runtime-only
 compiler: false,
 // webpack配置
 // see https://github.com/vuejs/vue-cli/blob/dev/docs/webpack.md
 chainWebpack: () => {},
 configureWebpack: () => {},
 // vue-loader 配置项
 // https://vue-loader.vuejs.org/en/options.html
 vueLoader: {},
 // 生产环境是否生成 sourceMap 文件
 productionSourceMap: true,
 // css相关配置
 css: {
 // 是否使用css分离插件 ExtractTextPlugin
 extract: true,
 // 开启 CSS source maps?
 sourceMap: false,
 // css预设器配置项
 loaderOptions: {},
 // 启用 CSS modules for all css / pre-processor files.
 modules: false
 },
 // use thread-loader for babel & TS in production build
 // enabled by default if the machine has more than 1 cores
 parallel: require('os').cpus().length > 1,
 // 是否启用dll
 // See https://github.com/vuejs/vue-cli/blob/dev/docs/cli-service.md#dll-mode
 dll: false,
 // PWA 插件相关配置
 // see https://github.com/vuejs/vue-cli/tree/dev/packages/%40vue/cli-plugin-pwa
 pwa: {},
 // webpack-dev-server 相关配置
 devServer: {
 open: process.platform === 'darwin',
 host: '0.0.0.0',
 port: 8080,
 https: false,
 hotOnly: false,
 proxy: null, // 设置代理
 before: app => {}
 },
 // 第三方插件配置
 pluginOptions: {
 // ...
 }
}

# string
module.exports = {
 devServer: {
 proxy: '<url>'
 }
}
# Object
module.exports = {
 devServer: {
 proxy: {
 '/api': {
 target: '<url>',
 ws: true,
 changeOrigin: true
 },
 '/foo': {
 target: '<other_url>'
 }
 }
 }
}

module.exports = {
 dll: true
}
module.exports = {
 dll: [
 'dep-a',
 'dep-b/some/nested/file.js'
 ]
}

# 在 public/index.html中引用静态资源
<%= webpackConfig.output.publicPath %>
<link rel="shortcut icon" href="<%= webpackConfig.output.publicPath %>favicon.ico" rel="external nofollow" >
# vue templates中，需要在data中定义baseUrl
<template>
 <img :src="`${baseUrl}my-image.png`">
</template>
<script>
 data () {
 return {
 baseUrl: process.env.BASE_URL
 }
 }
</script>

// vue.config.js
module.exports = {
 chainWebpack: config => {
 config.module
 .rule('js')
 .include
  .add(/some-module-to-transpile/) // 要处理的模块
 }
}

// vue.config.js
module.exports = {
 chainWebpack: config => {
 config.module
 .rule('scss')
 .use('sass-loader')
 .tap(options =>
 merge(options, {
  includePaths: [path.resolve(dirname, 'node_modules')],
 })
 )
 }
}

// vue.config.js
module.exports = {
 chainWebpack: config => {
 config
 .plugin('html')
 .tap(args => {
 return [/* new args to pass to html-webpack-plugin's constructor */]
 })
 }
}

chainWebpack: config => {
 if (process.env.NODE_ENV === 'production') { 
 config
  .plugin('uglify')
  .tap(([options]) =>{
  // 去除 console.log
  return [Object.assign(options, {
   uglifyOptions: { compress: {
   drop_console : true,
   pure_funcs: ['console.log']
   }}
  })]
  })
 }
}