css单独打包

安装

yarn add mini-css-extract-plugin -D

使用

const MiniCssExtractPlugin = require("mini-css-extract-plugin");
 {
        test: /\.scss$/,
        use: [
          // "style-loader", // 不再需要style-loader，已经分离处理
          MiniCssExtractPlugin.loader,
          "css-loader", // 编译css
          "postcss-loader",
          "sass-loader" // 编译scss
        ]
      },
 plugins: [
    new MiniCssExtractPlugin({
      filename: "[name].css",
      chunkFilename: "[id].css"
    })
  ]