webpack.config.js

const path = require('path');
const webpack = require('webpack');

module.exports = {
    entry: './src/index.js',
    mode: 'development',
    module: {
        rules: [
            {
                test: /\.(js|jsx)$/,
                exclude: /(node_modules)/,
                loader: 'babel-loader',
                options: { presets: ['@babel/env']}
            },
            {
                test: /\.css$/,
                use: ['style-loader', 'css-loader']
            }
        ]
    },
    resolve: {
        extensions: ['*', '.js', '.jsx']
    },

    output: {
      path: path.resolve(__dirname, 'dist/'),
      publicPath: '/dist/',
      filename: 'bundle.js'  
    },
    devServer: {
        static: {
            directory: path.join(__dirname, 'public/')
        },
        compress: true,
        port: 3000,
        hot: true
    },
    plugins: [new webpack.HotModuleReplacementPlugin()]
};