webpack.config.js

var webpack = require('webpack');
var path    = require('path');

module.exports = {
    entry: './src/index.js',
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: 'bundle.js'
    },
    module: {
        rules: [
            {test: /\.(js|jsx)$/, use: 'babel-loader'},
            { test: require.resolve('jquery'), enforce: 'post', use: "expose-loader?$!expose-loader?jQuery" },
        ],
    },
};