webpack.config.js

const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const CopyWebpackPlugin = require("copy-webpack-plugin");

module.exports = {
  mode: "development",
  entry: {
    app: "./src/index.js",
  },
  devtool: "inline-source-map",
  devServer: {},
  output: {
    filename: "js/[name].bundle.js",
    path: path.resolve(__dirname, "dist"), // base path where to send compiled assets
    publicPath: "", // base path where referenced files will be look for
    pathinfo: false,
  },
  resolve: {
    extensions: ["*", ".js", ".jsx"],
    alias: {
      "@": path.resolve(__dirname, "src"), // shortcut to reference src folder from anywhere
    },
  },
  optimization: {
    removeAvailableModules: false,
    removeEmptyChunks: false,
    splitChunks: false,
    runtimeChunk: true,
  },
  module: {
    rules: [
      {
        // config for es6 jsx
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader",
        },
      },
      {
        test: /\.tsx?$/,
        use: [
          {
            loader: "ts-loader",
            options: {
              transpileOnly: true,
            },
          },
        ],
      },
      {
        test: /\.css$/i,
        use: ["style-loader", "css-loader", "postcss-loader"],
      },
      {
        // config for images
        test: /\.(png|svg|jpg|jpeg|gif)$/,
        use: [
          {
            loader: "file-loader",
            options: {
              outputPath: "images",
            },
          },
        ],
      },
      {
        // config for fonts
        test: /\.(woff|woff2|eot|ttf|otf)$/,
        use: [
          {
            loader: "file-loader",
            options: {
              outputPath: "fonts",
            },
          },
        ],
      },
      {
        test: /\.(csv|tsv)$/,
        use: ["csv-loader"],
      },
    ],
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: "./index.html",
      filename: "index.html",
    }),
    new CopyWebpackPlugin({
      patterns: [{ from: "./public/" }],
    }),
    new MiniCssExtractPlugin({
      // plugin for controlling how compiled css will be outputted and named
      filename: "css/[name].css",
      chunkFilename: "css/[id].css",
    }),
    new CleanWebpackPlugin({
      cleanOnceBeforeBuildPatterns: [
        "css/*.*",
        "js/*.*",
        "fonts/*.*",
        "images/*.*",
      ],
    }),
  ],
};