webpack.config.js
 1  const {resolve} = require('path');
 2  
 3  module.exports = {
 4    entry: [
 5      './md5.js'
 6    ],
 7    output: {
 8      path: resolve('./dist'),
 9      filename: 'md5.min.js',
10      libraryTarget: "var",
11      library: "MD5"
12    }
13  };