webpack.config.js

const path = require('path');

module.exports = {
    // Entrada a la aplicación de React
    entry: path.resolve(__dirname, 'src', 'index.js'),
    // Salida del bundle
    output: {
        path: path.resolve(__dirname, 'public'),
        filename: 'app.bundle.js'
    },
    module: {
        rules: [
            {
                test: /\.js$/i,
                exclude: /node_modules/i,
                use: {
                    loader: 'babel-loader',
                    options: { presets: ['@babel/env', '@babel/react'] }
                }
            },
            {
                test: /\.css$/i,
                use: ['style-loader', 'css-loader']
            },
            {
                test: /\.scss$/,
                use: ['style-loader', 'css-loader', 'sass-loader']
            },
            {
                test: /\.(ttf|eot|woff|woff2)$/i,
                use: {
                    loader: 'file-loader',
                    options: {
                        name: '[name].[ext]',
                        outputPath: 'fonts/'
                    }
                }
            },
            {
                test: /\.(png|jpg|jpeg|gif|svg)$/i,
                use: {
                    loader: 'file-loader',
                    options: {
                        name: '[name].[ext]',
                        outputPath: 'images/'
                    }
                }
            }
        ]
    },
    devServer: {
        contentBase: path.join(__dirname, 'public'),
        compress: true,
        port: 5000,
        open: true
    }
};