webpack.config.js

const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const CleanWebpackPlugin = require("clean-webpack-plugin");
const webpack = require("webpack");

module.exports = {
  entry: "./src/index.js",
  plugins: [
    new CleanWebpackPlugin(["demo"]),
    new HtmlWebpackPlugin({
      template: "public/index.html",
    }),
    new webpack.HotModuleReplacementPlugin(),
  ],
  output: {
    filename: "main.js",
    path: path.resolve(__dirname, "demo"),
  },
  module: {
    rules: [
      {
        test: /\.css$/,
        use: ["style-loader", "css-loader"],
      },
    ],
  },
  devtool: "inline-source-map",
  devServer: {
    hot: true,
  },
  mode: "development",
};