webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const CopyPlugin = require('copy-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');

const isProd = process.env.NODE_ENV === 'production';
const isDev = !isProd;
const filename = (ext) => (isDev ? `bundle.${ext}` : `bundle.[hash].${ext}`);

const config = {
  context: path.resolve(__dirname, 'src'),
  entry: './index.ts',
  mode: 'development',
  output: {
    filename: filename('js'),
    path: path.resolve(__dirname, 'dist'),
  },
  devtool: isDev ? 'source-map' : false,
  devServer: {
    open: true,
    stats: 'minimal',
    port: 5000,
    overlay: true,
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        use: 'babel-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.ts(x)?$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.scss$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'sass-loader'],
      },
    ],
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: 'index.html',
    }),
    new MiniCssExtractPlugin(),
    new CleanWebpackPlugin(),
    new CopyPlugin({
      patterns: [
        {
          from: path.resolve(__dirname, 'src/favicon.ico'),
          to: path.resolve(__dirname, 'dist'),
        },
      ],
    }),
  ],
  resolve: {
    extensions: ['.ts', '.js'],
    alias: {
      components: path.resolve(__dirname, './src/components'),
      core: path.resolve(__dirname, './src/core'),
      store: path.resolve(__dirname, './src/store'),
    },
  },
};

module.exports = config;