title: How to ignore an entity field in TypeScript when sending a JSON to a Web Service?
body: <p>I have this class:</p>
  
  <pre><code>export class TblColabAdmin {
      snomatrcompl: string;
      nflativo: number;
      ativo: boolean;
  }
  </code></pre>
  
  <p>The attribute <em>ativo</em> doesn't exist in my web service entity, so I would like to avoid that it was added in JSON.</p>
  
  <p>In Java, for example, we have <em>@JsonIgnore</em> annotation. Does exist something similar in TypeScript?</p>