user-agents/webpack.config.js

const path = require('path');

const webpack = require('webpack');
const UglifyJsPlugin = require('uglifyjs-webpack-plugin')


const mode = process.env.NODE_ENV || 'development';


module.exports = {
  entry: {
    index: path.resolve(__dirname, 'src', 'index.js'),
  },
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: '[name].js',
    library: 'user-agents',
    libraryTarget: 'umd',
    umdNamedDefine: true,
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        include: path.resolve(__dirname, 'src'),
        enforce: 'pre',
        loader: 'eslint-loader',
      },
      {
        test: /\.js$/,
        include: path.resolve(__dirname, 'src'),
        loader: 'babel-loader',
      },
      {
        test: /\.(gif|jpg|jpeg|png|svg)$/,
        loader: 'url-loader',
      },
    ],
  },
  target: 'node',
  devtool: 'source-map',
  optimization: {
    minimizer: [
      new UglifyJsPlugin({
        sourceMap: true,
        uglifyOptions: {
          mangle: {
            reserved: [
              'Slice',
              'SliceArray',
              'SliceString',
            ],
          },
        },
      }),
    ],
  },
  mode,
};