webpack.config.js

const path = require("path");
const webpack = require("webpack");
const VueLoaderPlugin = require("vue-loader/lib/plugin");
const CopyWebpackPlugin = require("copy-webpack-plugin");

module.exports = {
  entry: "./src/index.ts",
  output: {
    path: path.resolve(__dirname, "./dist"),
    publicPath: "/dist/",
    filename: "build.js",
  },
  module: {
    rules: [
      {
        test: /\.vue$/,
        loader: "vue-loader",
        options: {
          loaders: {
            // Since sass-loader (weirdly) has SCSS as its default parse mode, we map
            // the "scss" and "sass" values for the lang attribute to the right configs here.
            // other preprocessors should work out of the box, no loader config like this necessary.
            scss: "vue-style-loader!css-loader!sass-loader",
            sass: "vue-style-loader!css-loader!sass-loader?indentedSyntax",
          },
          // other vue-loader options go here
        },
      },
      {
        test: /\.tsx?$/,
        loader: "ts-loader",
        exclude: /node_modules/,
        options: {
          appendTsSuffixTo: [/\.vue$/],
        },
      },
      {
        test: /\.css$/,
        use: ["vue-style-loader", "css-loader"],
      },
      {
        test: /.html$/,
        use: ["html-loader"],
      },
    ],
  },
  resolve: {
    extensions: [".ts", ".js", ".vue", ".json"],
    alias: {
      vue$: "vue/dist/vue.esm.js",
    },
  },
  devServer: {
    contentBase: path.join(__dirname, "dist"),
    port: 9000,
  },
  performance: {
    hints: false,
  },
  devtool: "#eval-source-map",
  plugins: [
    new VueLoaderPlugin(),
    new CopyWebpackPlugin({ patterns: [{ from: "public" }] }),
  ],
};

if (process.env.NODE_ENV === "production") {
  module.exports.devtool = "#source-map";
  // http://vue-loader.vuejs.org/en/workflow/production.html
  module.exports.plugins = (module.exports.plugins || []).concat([
    new webpack.DefinePlugin({
      "process.env": {
        NODE_ENV: '"production"',
      },
    }),
  ]);
  module.exports.optimization = { minimize: true };
}