webpack.config.js

/* eslint-disable */
var webpack = require('webpack');
var path = require('path');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

module.exports = {
  mode: 'development',
  // devtool: 'inline-source-map',
  entry: {
    main: './client/src/index.js',
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/react', {
                     'plugins': ['@babel/plugin-proposal-class-properties']}]
          }
        },
      },
      {
        test: /\.(scss|css)$/,
        use: [
          { loader: MiniCssExtractPlugin.loader },
          {
            loader: 'css-loader',
          },
          { loader: 'sass-loader' }
        ]
      },
      {
        test: /\.(png|jpg|gif)$/,
        use: [
          {
            loader: 'file-loader',
            options: {}
          }
        ]
      }
    ]
  },
  output: {
    filename: 'bundle.js',
    path: __dirname + '/dist/bundle/',
    publicPath: '/static/'
  },
  plugins: [
    new webpack.HotModuleReplacementPlugin(),
    new webpack.DefinePlugin({
      'process.env': {
        'NODE_ENV': JSON.stringify('development')
      }
    }),
    new MiniCssExtractPlugin({
      filename: "bundle.css",
    }),

  ]
}