webpack.common.js

const path = require("path");
const webpack = require("webpack");
const HtmlWebpackInlineSourcePlugin = require("html-webpack-inline-source-plugin");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");


module.exports = {
  entry: {
    app: ["./src/index.tsx", "webpack-hot-middleware/client"],
  },
  output: {
    path: path.resolve(__dirname, "dist"),
    filename: "bundle.js",
  },
  resolve: {
    extensions: [".js", ".jsx", ".json", ".ts", ".tsx"],
  },
  module: {
    rules: [
      {
        test: /\.(ts|tsx)$/,
        loader: "ts-loader",
      },
      {
        enforce: "pre",
        test: "/.js$/",
        loader: "source-map-loader",
      },
    ],
  },
  plugins: [
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      template: path.resolve(__dirname, "src", "index.html"),
      inlineSource: "bundle.js$",
    }),
    new HtmlWebpackInlineSourcePlugin(),
    new webpack.HotModuleReplacementPlugin(),
  ],
  externals: {
    react: "React",
    "react-dom": "ReactDOM",
    redux: "Redux",
    "react-redux": "ReactRedux",
  },
};