refactor

webpack.config.js

@@ -0,0 +1,25 @@
+const path = require("path");
+
+module.exports = (env) => {
+  const prod = env.NODE_ENV === "production";
+  return {
+    entry: "./src/index.ts",
+    mode: prod ? "production" : "development",
+    module: {
+      rules: [
+        {
+          test: /\.ts?$/,
+          use: "ts-loader",
+          exclude: /node_modules/,
+        },
+      ],
+    },
+    resolve: {
+      extensions: [".ts", ".js"],
+    },
+    output: {
+      filename: "bundle.js",
+      path: path.resolve(__dirname, "dist"),
+    },
+  };
+};