webpack.dev.js

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

module.exports = {
  mode: 'development',
  entry: {
    index: './demo/index.ts',
  },
  devtool: 'inline-source-map',
  devServer: {
    host: '0.0.0.0',
    port: 8872,
  },
  plugins: [
    new HtmlWebpackPlugin({
      filename: 'index.html',
      chunks: ['index'],
      template: './demo/index.html',
    }),
  ],
  resolve: {
    // Add ".ts" and ".tsx" as resolvable extensions.
    extensions: ['.ts', '.js'],
    fallback: {
      fs: false,
      crypto: false,
      path: false,
    },
  },
  module: {
    rules: [
      {
        test: /\.ts$/,
        loader: 'ts-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.txt$/,
        loader: 'raw-loader',
        exclude: /node_modules/,
      },
    ],
  },
  output: {
    filename: '[name].js',
    path: path.resolve(__dirname, 'dist'),
  },
};