webpack.config.js

const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
const path = require('path');
const fs = require('fs');
const webpack = require('webpack');

const nodeModules = {};
fs.readdirSync('node_modules')
    .filter(function(x) {
        return ['.bin'].indexOf(x) === -1;
    })
    .forEach(function(mod) {
        nodeModules[mod] = 'commonjs ' + mod;
    });

module.exports = {
    mode: 'production',
    entry: {
        index: './src/index.ts',
    },
    output: {
        filename: '[name].js',
        path: path.resolve(__dirname, 'dist')
    },
    resolve: {
        // Add `.ts` and `.tsx` as a resolvable extension.
        extensions: [".ts", ".tsx", ".js"]
    },
    module: {
        rules: [
            // all files with a `.ts` or `.tsx` extension will be handled by `ts-loader`
            { test: /\.tsx?$/, loader: "ts-loader" }
        ]
    },
    plugins: [
        new webpack.BannerPlugin({ banner: "#!/usr/bin/env node", raw: true }),
    ],
    externals: nodeModules,
    optimization: {
        minimizer: [
            new UglifyJsPlugin()
        ]
    },
};