webpack.config.js

console.log("dirname is ", __dirname)
const path = require('path');

module.exports = {
    entry: "./src/index.tsx",
    output: {
        filename: "bundle.js",
        path: path.join(__dirname, "public", "assets"),
        publicPath: "/assets/"
    },


    // Enable sourcemaps for debugging webpack's output.
    devtool: "cheap-eval-source-map",

    resolve: {
        // Add '.ts' and '.tsx' as resolvable extensions.
        extensions: [".webpack.js", ".web.js", ".ts", ".tsx", ".js"]
    },

    module: {
        loaders: [
            // All files with a '.ts' or '.tsx' extension will be handled by 'awesome-typescript-loader'.
            { test: /\.tsx?$/, loader: "awesome-typescript-loader" },
            { test: /\.styl$/, loader: 'style-loader!css-loader!stylus-loader' }
        ],

    },

    // When importing a module whose path matches one of the following, just
    // assume a corresponding global variable exists and use that instead.
    // This is important because it allows us to avoid bundling all of our
    // dependencies, which allows browsers to cache those libraries between builds.
    externals: {
        "react": "React",
        "react-dom": "ReactDOM"
    },
};