title: React and mobx - events?
body: <p>I have a React app with Mobx.</p>
  
  <p>This is my problem:</p>
  
  <p>I hava a sidebar that clicks on a button should invoke methods of another component (the observer). If the sidebar changes a value in the store - all is fine. I have defined a mobx.reaction an I can easily invoke the method</p>
  
  <p>But what should I do if I just want to invoke a method - like reset or init? no value should be changed in the store.</p>
  
  <p>How can I do that?</p>
  
  <p>Regards,
  Ido</p>