webpack.config.js

const path = require('path');

module.exports = {
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: 'index.bundle.js'
    },
    mode: 'development',
    devServer: {
        port: 3010,
        liveReload: true
    },
    module: {
        rules: [
            {
                test: /\.(js|jsx)$/,
                exclude: /node_modules/,
                use: {
                    loader: 'babel-loader'
                }
            },
            {
                test: /\.css$/,
                use: [
                    'style-loader',
                    'css-loader',
                    'sass-loader'
                ]
            },
            {
                test: /\.(mp3)$/,
                use: [
                    {
                        loader: 'file-loader',
                        options: {}
                    }
                ]
            }
        ]
    }
}