webpack.config.js

const path = require('path');

module.exports = {
    entry: './src/index.ts',
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: 'index.js',
        libraryTarget: 'umd'
    },
    resolve: {
        extensions: ['.ts', '.tsx']
    },
    module: {
        rules: [
            {
                test: /\.(ts|tsx)$/,
                use: [
                    {
                        loader: require.resolve('ts-loader')
                    }
                ]
            },
            {
                test: /\.svg$/,
                use: ['@svgr/webpack']
            },
            {
                test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
                use: [
                    {
                        loader: 'url-loader'
                    }
                ]
            },
            {
                test: /\.s?css$/,
                use: ['style-loader', 'css-loader', 'sass-loader'],
                include: [
                    path.resolve(__dirname, './src')
                ]
            }
        ]
    },
    externals: {
        react: 'react'
    }
};