webpack.config.js

const path = require('path')
const FriendlyErrorsWebpackPlugin = require('friendly-errors-webpack-plugin')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const StyleLintPlugin = require('stylelint-webpack-plugin')

module.exports = {
  entry: {
    admin: './src/scripts/admin.js',
  },
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'scripts/[name].js',
  },
  stats: 'none',
  mode: 'production',
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: 'babel-loader',
        query: {
          presets: ['env'],
          cacheDirectory: true,
        },
      },
      {
        test: /\.scss$/,
        exclude: /node_modules/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'postcss-loader', 'sass-loader'],
      },
      {
        test: /\.(jpe?g|gif|png|svg|eot|woff|woff2|ttf)$/,
        exclude: /node_modules/,
        use: [
          {
            loader: 'file-loader',
            options: {
              emitFile: false,
              name: '[path][name].[ext]',
              publicPath: './../../',
            },
          },
        ],
      },
    ],
  },
  plugins: [
    new MiniCssExtractPlugin({ filename: 'styles/[name].css' }),
    new FriendlyErrorsWebpackPlugin(),
    new StyleLintPlugin(),
  ],
  resolve: {
    extensions: ['.js', '.json'],
  },
  externals: {
    jquery: 'jQuery',
  },
}