webpack.config.js

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

module.exports = {
    entry: path.join(__dirname, 'src/demo'),
    devtool: "source-map",
    output: {
        path: path.join(__dirname, 'dist'),
        filename: 'bundle.js'
    },
    module: {
        rules: [
            {
                test: /\.ts(x?)$/,
                exclude: /node_modules/,
                use: [
                    {
                        loader: "ts-loader"
                    }
                ]
            },
            {
                test: /\.css$/,
                use: ['style-loader', 'css-loader'],
            },
            // All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
            {
                enforce: "pre",
                test: /\.js$/,
                loader: "source-map-loader"
            }
        ]
    },
    plugins: [
        new HtmlWebpackPlugin({
          template: path.join(__dirname, 'src/demo/index.html'),
        }),
    ],
    resolve: {
        extensions: ['.ts', '.tsx','.js'],
    },
    devServer: {
        contentBase: path.join(__dirname, 'dist'),
        port: 8000,
        stats: 'minimal',
    },
}