title: First item from a Map on JavaScript ES2015
body: <p>I have a <code>Map</code> like this:</p>
  
  <pre><code>const m = new Map();
  m.set('key1', {})
  .
  m.set('keyN' {})
  </code></pre>
  
  <p>the <code>Map</code>can have 1 or many items. Can I get the first item by index, without <code>m.get('key1')</code> and without a iterator loop?</p>
  
  <p>like: <code>m.get()[0]</code></p>