webpack.config.js

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

const port = process.env.PORT || 3000;

module.exports = {
  entry: "./src/index.js",
  mode: "development",
  devtool: "inline-source-map",
  plugins: [
    new HtmlWebpackPlugin({
      title: "Development",
      template: "public/index.html",
    }),
  ],
  output: {
    filename: "bundle.[hash].js",
    path: path.resolve(__dirname, "dist"),
    clean: true,
  },
  module: {
    rules: [
      {
        test: /\.(js)$/,
        exclude: /node_modules/,
        use: ["babel-loader"],
      },
      {
        test: /\.css$/,
        use: ["style-loader", "css-loader"],
      },
      {
        test: /\.scss$/,
        use: ["style-loader", "css-loader", "sass-loader"],
      },
    ],
  },
  devServer: {
    host: "localhost",
    port: port,
    historyApiFallback: true,
    open: true,
  },
};