webpack.config.js

/* global __dirname, require, module*/

var webpack = require('webpack');
var UglifyJsPlugin = webpack.optimize.UglifyJsPlugin;
var path = require('path');
var env = require('yargs').argv.env; // use --env with webpack 2

var libraryName = 'chek';

var plugins = [], outputFile;

if (env === 'build') {
  plugins.push(new UglifyJsPlugin({ minimize: true }));
  outputFile = libraryName + '.min.js';
} else {
  outputFile = libraryName + '.js';
}

var config = {
  entry:  './src/chek.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: outputFile,
    library: "Chek",
    libraryTarget: 'umd',
    umdNamedDefine: true
  },
  module: {
    rules: [
      // {
      //   test: /(\.jsx|\.js)$/,
      //   loader: 'eslint-loader',
      //   exclude: /node_modules/
      // }
    ]
  },
  resolve: {
    modules: [path.resolve('./node_modules'), path.resolve('./src')],
    extensions: ['.json', '.js']
  },
  plugins: plugins
};

module.exports = config;