webpack.prod.config.js

'use strict';

const path = require('path');

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

module.exports = {
    mode: 'production',
    entry:  './src/index.ts',
    output: {
        environment: {
            // The environment supports arrow functions ('() => { ... }').
            arrowFunction: false,
            // The environment supports BigInt as literal (123n).
            bigIntLiteral: false,
            // The environment supports const and let for variable declarations.
            const: false,
            // The environment supports destructuring ('{ a, b } = obj').
            destructuring: false,
            // The environment supports an async import() function to import EcmaScript modules.
            dynamicImport: false,
            // The environment supports 'for of' iteration ('for (const x of array) { ... }').
            forOf: false,
            // The environment supports ECMAScript Module syntax to import ECMAScript modules (import ... from '...').
            module: false,
        },
        filename: 'index.js',
        path: path.resolve(__dirname, './lib'),
        libraryTarget: 'umd',
        library: 'lib',
        umdNamedDefine: true,
        globalObject: `(typeof self !== 'undefined' ? self : this)`,
    },
    optimization: {
        minimize: true,
    },
    externals : {
        'react': 'react',
        'react-dom': 'react-dom',
    },
    module: {
        rules: [
            {
                test: /\.ts(x?)$/,
                include: path.resolve(__dirname, 'src'),
                loader: 'ts-loader',
            }
        ]
    },
    resolve: {
        extensions: ['.ts', '.tsx', '.js'],
    },
    plugins: [
        new CleanWebpackPlugin(),
    ],
};