webpack.config.js

const path = require('path')
const { CleanWebpackPlugin } = require('clean-webpack-plugin')
const TerserPlugin = require('terser-webpack-plugin');

module.exports = {
    entry: './src/index.js',
    externals: {
        react: 'react',
        'react-dom': 'react-dom'
    },
    output: {
        filename: 'index.js',
        path: path.resolve(__dirname, 'dist'),
        library: '',
        libraryTarget: 'commonjs'
    },
    plugins: [new CleanWebpackPlugin()],
    module: {
        rules: [
            {
                test: /\.(js|jsx)$/,
                exclude: /node_modules/,
                use: ['babel-loader']
            },
            {
                test: /\.(ts|tsx)?$/,
                exclude: /node_modules/,
                loader: 'babel-loader'
            },
            {
                test: /\.scss$/,
                use: ['style-loader', 'css-loader', 'sass-loader'],
                include: path.resolve(__dirname, './src')
            }
        ]
    },
    optimization: {
        minimize: true,
        minimizer: [
            new TerserPlugin({
                test: /\.js(\?.*)?$/i,
                parallel: true
            }),
        ],
    },
    resolve: {
        extensions: ['.js', '.jsx', '.ts', '.tsx', '.scss']
    },
}