webpack.config.js

const path = require("path");
const build = path.join(process.cwd(), "build");
const webpack = require("webpack");

module.exports = env => ({
    entry: "./src/index.ts",
    devtool: env == "prod" ? undefined : "inline-source-map",
    mode: env == "prod" ? "production" : "development",
    plugins: [new webpack.BannerPlugin({banner: "// Generated by TS", raw: true})],
    module: {
        rules: [
            {
                test: /\.tsx?$/,
                use: "ts-loader",
                exclude: /node_modules/,
            },
            {
                test: /\.(png|jpe?g|gif|svg)$/i,
                loader: "file-loader",
                options: {
                    name: "[path][name].[ext]",
                },
            },
            {
                test: /\.(txt|frag|vert)$/i,
                use: "raw-loader",
            },
        ],
    },
    devServer: {
        contentBase: [build],
        compress: true,
        port: 3000,
        historyApiFallback: true,
    },
    resolve: {
        extensions: [".tsx", ".ts", ".js"],
    },
    output: {
        filename: "bundle.js",
        path: build,
    },
});