mini-css-extract-plugin：生产环境 CSS 提取的最佳方案

bash 体验AI代码助手 代码解读复制代码npm install --save-dev mini-css-extract-plugin

javascript 体验AI代码助手 代码解读复制代码const MiniCssExtractPlugin = require('mini-css-extract-plugin');

module.exports = {
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [
          MiniCssExtractPlugin.loader,  // 替换 style-loader
          'css-loader'
        ]
      }
    ]
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: '[name].[contenthash:8].css'
    })
  ]
};

javascript 体验AI代码助手 代码解读复制代码const isDev = process.env.NODE_ENV === 'development';

module.exports = {
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [
          isDev ? 'style-loader' : MiniCssExtractPlugin.loader,
          'css-loader'
        ]
      }
    ]
  },
  plugins: [
    !isDev && new MiniCssExtractPlugin({
      filename: 'css/[name].[contenthash:8].css'
    })
  ].filter(Boolean)
};

javascript 体验AI代码助手 代码解读复制代码new MiniCssExtractPlugin({
  // 输出文件名
  filename: '[name].[contenthash:8].css',
  
  // 异步 chunk 的文件名
  chunkFilename: '[id].[contenthash:8].css',
  
  // 是否在运行时插入 <link> 标签
  insert: '#some-element',
  
  // 自定义属性
  attributes: {
    id: 'my-css',
    'data-target': 'head'
  },
  
  // 移除 Order 警告
  ignoreOrder: false
})

bash 体验AI代码助手 代码解读复制代码npm install --save-dev css-minimizer-webpack-plugin

javascript 体验AI代码助手 代码解读复制代码const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');

module.exports = {
  optimization: {
    minimizer: [
      '...',  // 保留默认的 JS 压缩
      new CssMinimizerPlugin()
    ]
  }
};

javascript 体验AI代码助手 代码解读复制代码module.exports = {
  entry: {
    home: './src/home.js',
    about: './src/about.js'
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: '[name].css'
    })
  ]
};

// 输出：home.css, about.css

javascript 体验AI代码助手 代码解读复制代码// 动态导入
const Home = lazy(() => import('./Home'));
const About = lazy(() => import('./About'));

// 每个路由的 CSS 会被提取到独立文件

javascript 体验AI代码助手 代码解读复制代码module.exports = {
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
            options: {
              hmr: process.env.NODE_ENV === 'development'
            }
          },
          'css-loader'
        ]
      }
    ]
  }
};

javascript 体验AI代码助手 代码解读复制代码const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');

const isDev = process.env.NODE_ENV === 'development';

module.exports = {
  mode: isDev ? 'development' : 'production',
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [
          isDev ? 'style-loader' : MiniCssExtractPlugin.loader,
          'css-loader',
          'postcss-loader'
        ]
      },
      {
        test: /\.scss$/,
        use: [
          isDev ? 'style-loader' : MiniCssExtractPlugin.loader,
          'css-loader',
          'postcss-loader',
          'sass-loader'
        ]
      }
    ]
  },
  plugins: [
    !isDev && new MiniCssExtractPlugin({
      filename: 'css/[name].[contenthash:8].css',
      chunkFilename: 'css/[id].[contenthash:8].css'
    })
  ].filter(Boolean),
  optimization: {
    minimizer: [
      '...',
      new CssMinimizerPlugin({
        minimizerOptions: {
          preset: [
            'default',
            {
              discardComments: { removeAll: true }
            }
          ]
        }
      })
    ]
  }
};