webpack.config.js

var ExtractTextPlugin = require("extract-text-webpack-plugin");
var path = require("path");
var webpack = require('webpack');

module.exports = {
    entry: {
        app: './src/app.js',
        vendor: ['jquery']
    },
    output: {
        path: path.resolve(__dirname, "build"),
        filename: "[name].js"
    },
    module: {
        loaders: [
            { test: /\.scss$/, loader: ExtractTextPlugin.extract("style-loader", "css-loader!sass-loader") },
            {
                test: /\.js$/,
                exclude: /node_modules/,
                loader: 'babel',
                query: {
                    presets: ['es2015']
                }
            },
        ]
    },
    plugins: [
        new ExtractTextPlugin("[name].css"),
        new webpack.optimize.CommonsChunkPlugin('vendor','vendor.js',{
            allChunks: true
        }),
        new webpack.ProvidePlugin({
            $: 'jquery'
        }),
    ]
}

HTML:

目录：