title: initializing a Map<string,string> in Typescript from json object
body: <p>I have a class in Typescript containing a map:</p>
  <pre><code>public map:Map&lt;string,string&gt;;
  constructor() {
    let jsonString = {
      &quot;peureo&quot; : &quot;dsdlsdksd&quot;
    };
    this.map = jsonString;
  }
  </code></pre>
  <p>Problem is that the initialization doesn't work.</p>
  <p><code>jsonString</code> is something that I will receive from a Java Object serialized to Json.</p>
  <p>Anyone can help? Thanks!</p>