title: ToggleClass('active') on Angular and Typescript
body: <p>Anyone knows how can I do something like this with Angular? </p>
  
  <pre><code>$('button').click(function(){
    $('button').toggleClass('active');
    $('.title').toggleClass('active');
    $('nav').toggleClass('active');
  });
  </code></pre>
  
  <p>Thank you very much!</p>