title: Freemarker - How to put variables in hashmap?
body: <p>I searched the web to find how to add some entries into an existing hashmap.</p>
  
  <p>Consider this code:</p>
  
  <pre><code>&lt;#assign foo={'bar':'go'}&gt;
  </code></pre>
  
  <p>I want to add a new entry and have something like this:</p>
  
  <pre><code>foo={'bar':'go','new':'entry}
  </code></pre>
  
  <p>How can I do that?</p>