webpack.config.js

const path = require('path'),
	TerserPlugin = require('terser-webpack-plugin'),
	MiniCssExtractPlugin = require('mini-css-extract-plugin');

module.exports = {
	mode: 'production',
	entry: './src/index.js',
	devtool: 'source-map',
	externals: {
		'react': 'react',
	},
	target: 'web',
	output: {
		path: path.join(__dirname, 'dist'),
		filename: 'index.js',
		library: {
			type: 'commonjs2'
		}
	},
	module: {
		rules: [
			{
				test: /\.css$/,
				use: [MiniCssExtractPlugin.loader, 'css-loader'],
			},
			{
				test: /\.s[ac]ss$/i,
				use: [
					MiniCssExtractPlugin.loader,
					'css-loader',
					'sass-loader'
				],
			},
			{
				test: /\.(png|jp(e*)g)$/,
				type: 'asset/inline'
			},
			{
				test: /\.(js|jsx)$/,
				exclude: /node_modules/,
				use: [ 'babel-loader' ]
			}
		]
	},
	plugins: [
		new MiniCssExtractPlugin({
			filename: 'index.css'
		}),
	],
	optimization: {
		minimize: true,
		minimizer: [ new TerserPlugin({
			terserOptions: {
				output: {
					comments: false
				}
			},
			extractComments: false
		}) ],
	}
};