Webpack react configuration 2020 (Works with the new @babel/core configurations)

webpack.config.js

// Webpack configuration for react to work with all browsers

const path = require("path"); // node's path module 
const htmlWebpackPlugin = require("html-webpack-plugin"); // creates your html with all jsx bundled to es5

module.exports = {
  entry: "./index.js",
  output: { // path to the bundle
    path: path.join(__dirname, "/bundle"),
    filename: "bundle.js",
  },
  devServer: { // dev server configuration
    inline: true,
    port: 3007,
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)?$/, 
        exclude: /node_modules/,
        loader: "babel-loader",
        query: {
          cwd: __dirname,
          presets: ["@babel/preset-env", "@babel/preset-react"],
        },
      },
    ],
  },
  plugins: [
    new htmlWebpackPlugin({
      template: "./public/index.html",
    }),
  ],
};