webpack.prod.js

const path = require('path')
module.exports = {
    entry: {
        main: path.join(__dirname, "src/Sample.jsx") //for non static user wtitten code
    },
    output: {
        filename: "bundle.js",
        path: path.resolve(__dirname, "dist"),
        libraryTarget: 'commonjs2'
    },
    module: {
        rules: [
            {
                test: /\.(js|jsx)$/,
                exclude : /node_modules/,
                use : {
                    loader : "babel-loader"
                }
            },
            {
                test: /\.(png|svg|jpg|gif)$/,
                use: [
                    {
                      loader: 'file-loader',
                      options: {
                        name(resourcePath, resourceQuery) {
                            return '[path][name].[ext]';
                        }
                      },
                    },
                ],
            },
        ]
    },
}