Webpack configuration

webpack.config.js

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

module.exports = {
  entry: {
    app: ["./app/index.js"]
  },
  module: {
    loaders: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: "babel-loader",
        query: {
          presets: ["es2015"]
        }
      },
      {
        test: /\.html$/,
        loader: "underscore-template-loader"
      }
    ]
  },
  output: {
    filename: "bundle.js",
    path: path.join(__dirname, "public/js")
  },
  plugins: [new webpack.ProvidePlugin({ _: "lodash" })],
  resolve: {
    modules: [__dirname, "app", "node_modules"]
  }
};