title: How do I concatenate ES6 modules?
body: <p>How can I concatenate ES6 modules?</p>
  
  <pre><code>var foo = 2; // This would normally be scoped to the module.
  export function Bar() {}
  
  // ...concatenate...
  
  import { Bar } from 'javascripts/bar' //This file no longer exists in the concatenated scenario.
  export function Bam() {}
  </code></pre>