webpack.dev.js

const path = require("path");
const { merge } = require("webpack-merge");
const common = require("./webpack.common.js");
const HtmlWebpackPlugin = require("html-webpack-plugin");

module.exports = merge(common, {
  mode: "development",
  devtool: "inline-source-map",
  devServer: {
    static: "./dist",
    hot: true,
  },
  output: {
    filename: "[name].bundle.js",
    path: path.resolve(__dirname, "dist"),
    assetModuleFilename: "[name][ext]",
    clean: true,
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: "./src/index.html",
    }),
  ],
  module: {
    rules: [
      {
        test: /\.css$/i,
        use: ["style-loader", "css-loader", "postcss-loader"],
      },
    ],
  },
  optimization: {
    runtimeChunk: true,
    removeAvailableModules: false,
    removeEmptyChunks: false,
    splitChunks: false,
    usedExports: true,
  },
});