webpack.config.js

const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = {
  entry: './src/index.ts',
  output: {
    path: path.join(__dirname, '/dist'),
    filename: 'index-bundle.js',
  },
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        exclude: /node_modules/,
        use: ['ts-loader'],
      },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: ['babel-loader'],
      },
      {
        test: /\.css$/i,
        use: ['style-loader', 'css-loader'],
      },
      {
        test: /\.scss$/i,
        use: ['style-loader', 'css-loader', 'sass-loader'],
      },
      {
        test: /\.(gif|png|jpe?g|svg)$/i,
        use: [
          'file-loader',
          {
            loader: 'image-webpack-loader',
            options: {
              bypassOnDebug: true, // webpack@1.x
              disable: true, // webpack@2.x and newer
            },
          },
        ],
      },
    ],
  },
  resolve: {
    extensions: ['.tsx', '.ts', '.js'],
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: './public/index.html',
    }),
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify(
        process.env.NODE_ENV || 'development'
      ),
    }),
  ],
};