webpack.config.js

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

const isProduction = process.env.NODE_ENV == "production";

const config = {
  entry: {
    main: "./src/index.js",
  },
  output: {
    filename: "[name].bundle.js",
    path: path.resolve(__dirname, "dist"),
  },
  devServer: {
    host: "localhost",
    port: "9000",
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: "./src/index.html",
    }),
    new Dotenv(),
  ],
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/i,
        exclude: /node_modules/,
        loader: "babel-loader",
        options: {
          presets: ["@babel/preset-react"],
        },
      },
      {
        test: /\.css$/i,
        use: ["style-loader", "css-loader"],
      },
      {
        test: /\.scss$/i,
        use: ["style-loader", "css-loader", "sass-loader"],
      },
      {
        test: /\.(eot|svg|ttf|woff|woff2|png|jpg|gif)$/i,
        type: "asset",
      },
    ],
  },
  stats: {
    assets: false,
    modules: false,
  },
};

module.exports = () => {
  if (isProduction) {
    config.mode = "production";
  } else {
    config.mode = "development";
  }
  return config;
};