webpack.config.js

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

module.exports = (env, argv) => ({
    devtool: argv.mode === 'production' ? false : 'inline-source-map',

    module: {
        rules: [
            {
                test: /\.(js|jsx)$/,
                exclude: /node_modules/,
                use: 'babel-loader'
            },
            {
                test: /\.tsx?$/,
                use: 'ts-loader',
                exclude: /node_modules/
            },
            {
                test: /\.css$/,
                loader: [
                    { loader: 'style-loader' },
                    { loader: 'css-loader' }
                ]
            },
            {
                test: /\.(svg|png)$/,
                use: {
                    loader: 'url-loader',
                    options: {
                        limit: 25000,
                    }
                }
            }
        ]
    },
    entry: {
        ui: './src/ui/ui.js',
        code: './src/sandbox/code.ts'
    },
    resolve: {
        extensions: ['.js', '.jsx', '.tsx', '.ts']
    },
    output: {
        filename: '[name].js',
        path: path.resolve(__dirname, 'dist')
    },
    plugins: [
        new HtmlWebpackPlugin({
            template: './src/ui/ui.html',
            filename: 'ui.html',
            inlineSource: '.(js)$',
            chunks: ['ui']
        }),
        new HtmlWebpackInlineSourcePlugin()
    ]
});