title: How to get translation by key in component Angular2?
body: <p>I use <a href="https://github.com/ngx-translate/core" rel="nofollow noreferrer">this library</a> in Angular 2 for translations:</p>
  
  <p>In my JSON file, I have word by key: </p>
  
  <pre><code>{
  "delete_selected" : "Удалить выделенные",
  }
  </code></pre>
  
  <p>Then inside component I try to fill object like as:</p>
  
  <pre><code>let obj = {
   title: &lt;delete_selected&gt;
  };
  </code></pre>
  
  <p>How can I get translation by key word?</p>