webpack.config.js

const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const HtmlWebPackPlugin = require('html-webpack-plugin');
const WebpackMd5Hash = require('webpack-md5-hash');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const webpack = require('webpack');
const eslintFormatter = require('react-dev-utils/eslintFormatter');

module.exports = {

  entry: { main: './src/index.js' },
  output: {
    path: path.resolve(__dirname, 'public'),
    filename: '[name].[hash].js',
  },

  mode: 'development',

  resolve: {
    alias: {
      '@': path.resolve(__dirname, 'src'),
    },
  },

  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        enforce: 'pre',
        exclude: /node_modules/,
        use: {
          options: {
            formatter: eslintFormatter,
            eslintPath: 'eslint',
          },
          loader: 'eslint-loader',
        },
      },
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
        },
        resolve: {
          extensions: [
            '.js',
            '.jsx',
          ],
        },
      },
      {
        test: /\.sass$/,
        use: [
          'style-loader',
          MiniCssExtractPlugin.loader,
          'css-loader',
          'sass-loader',
        ],
      },
      {
        test: /\.css$/,
        use: [
          'style-loader',
          MiniCssExtractPlugin.loader,
          'css-loader',
        ],
      },
      {
        test: /\.(ttf|eot|woff|woff2)$/,
        use: {
          loader: 'file-loader',
          options: {
            name: 'fonts/[name].[ext]',
          },
        },
      },
      {
        test: /\.(gif|png|jpe?g|svg)$/i,
        use: [
          {
            loader: 'file-loader',
            options: {
              name: '[name].[ext]',
              outputPath: 'images/',
            },
          },
        ],
      },
    ],
  },

  devServer: {
    historyApiFallback: true,
  },

  plugins: [
    new CleanWebpackPlugin('public/*.*', {}),
    new HtmlWebPackPlugin({
      inject: false,
      hash: true,
      template: './src/index.html',
      filename: 'index.html',
    }),
    new MiniCssExtractPlugin({
      filename: '[name].[contenthash].css',
    }),
    new WebpackMd5Hash(),
    new webpack.HotModuleReplacementPlugin(),
  ],
};