webpack css optimization and minify

问题

I use webpack 4 and need to optimize and minify css after build comand. I found optimize-css-assets-webpack-plugin but this plugin doesn't work. Do you use these plugins or loaders for optimizing css or not? Do we need to use it or not?

回答1:

With webpack 4 you need to bring your own. To minify the output, use a plugin like optimize-css-assets-webpack-plugin. However, note that setting optimization.minimizer overrides the defaults provided by webpack, so make sure to also specify a JS minimizer:

const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
const OptimizeCSSAssetsPlugin = require("optimize-css-assets-webpack-plugin");

module.exports = {
  optimization: {
    minimizer: [
      new UglifyJsPlugin({
        cache: true,
        parallel: true,
        sourceMap: true // set to true if you want JS source maps
      }),
      new OptimizeCSSAssetsPlugin({})
    ]
  },
  plugins: [

  ],
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [
          "css-loader"
        ]
      }
    ]
  }
}

来源：https://stackoverflow.com/questions/50628268/webpack-css-optimization-and-minify