webpack.config.js

const path = require('path');
const webpack = require('webpack');
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
const ManifestPlugin = require('webpack-manifest-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');

plugins = [
    new webpack.EnvironmentPlugin(['NODE_ENV']),
    new ManifestPlugin(),
    new CleanWebpackPlugin([__dirname + '/src/Website/Scripts/dist']),
]; 

if (process.env.NODE_ENV === "production") {
    plugins.push(new webpack.optimize.ModuleConcatenationPlugin({ optimizationBailout: true }));
} else {
    Array.prototype.push.apply(plugins, [
        new BundleAnalyzerPlugin(),
        new webpack.NamedModulesPlugin(),
        new webpack.NamedChunksPlugin()
    ]);
}

module.exports = {
    context: __dirname + "/src/Website/Scripts/",
    entry: "./src/app.js",
    output: { path: __dirname + "/src/Website/Scripts/dist", filename: "[name].[chunkhash].js", publicPath: '/Scripts/dist/' },
    plugins: plugins,
    module: {
        rules: [

            {
                enforce: 'pre',
                test: /\.js$/,
                exclude: /node_modules/,
                include: [
                    path.resolve(__dirname, './src')
                ],
                options: {
                    configFile: path.resolve(__dirname, './.eslintrc'),
                    failOnError: true,
                    //failOnWarning: true,
                },
                loader: 'eslint-loader',
            },
            {
                test: /\.js$/,
                exclude: /node_modules/,
				include: [
					path.resolve(__dirname, './src')
				],
                loader: "babel-loader", // or just "babel"
            }
        ]
    }
};