webpack.config.js

var path = require('path');
module.exports = {
  entry: {
    horizontal: './shim/horizontal.js',
    vertical: './shim/vertical.js'
  },
  output: {
    library: 'ScratchBlocks',
    libraryTarget: 'commonjs2',
    path: path.resolve(__dirname, 'dist'),
    filename: '[name].js'
  }
};