webpack.config.js

const path = require('path')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const CssMinimizerPlugin = require("css-minimizer-webpack-plugin")
const TerserPlugin = require("terser-webpack-plugin")

module.exports = (env) => {
  return {
    mode: 'development',
    entry: [
      './app/resources/js/app.js',
      './app/resources/css/app.css'
    ],
    optimization: {
      minimize: env.prod,
      minimizer: [
        new CssMinimizerPlugin(),
        new TerserPlugin({
          extractComments: false,
          terserOptions: {
            format: {
              comments: false,
            },
          },
        }),
      ],
    },
    output: {
      path: path.resolve(__dirname, './public/assets/'),
      filename: 'app.js'
    },
    module: {
      rules: [
        {
          test: /\.css$/i,
          use: [MiniCssExtractPlugin.loader, {loader: 'css-loader', options: {url: false}}, 'postcss-loader']
        },
      ]
    },
    plugins: [new MiniCssExtractPlugin({
      filename: 'app.css'
    })]
  }
}