title: how to extend a TypeScript class from a regular Javascript, even possible?
body: <p>I have a typescript class</p>
  
  <pre><code>class BlockJsonBig {
  
      private m_simpleStorage:simplestoragejs.SimpleStorage;
      ...
  }
  </code></pre>
  
  <p>and would like to have it extend (subclass) a regular non TS function as in:</p>
  
  <pre><code>var BlockJsonSmall = Block.extend({...})
  </code></pre>
  
  <p>so basically I would like BlockJsonBig to extend BlockJsonSmall but BlockJsonSmall is pure JS (not TS)</p>
  
  <p>Is it possible?</p>
  
  <p>tx for reading,</p>
  
  <p>Sean.</p>