title: Typesctipt quick way to check if array of object exist, and object exist, and object prop exist?
body: <p>I have to do these checks before assing the value of object props:</p>
  
  <pre><code>if (Store != undefined) {
        if (Store.someItem != undefined) {
            if (Store.someItem['title'] != undefined) {
                title = Store.someItem['title']
            }
        }
      }
  </code></pre>
  
  <p><strong>Is there short way to do this ?</strong></p>
  
  <p>For example: the last check we could do like this:</p>
  
  <pre><code>title = Store.someItem['title'] || ''
  </code></pre>
  
  <p>Is it possible to make all these checks in short ways. Or may be you could give advise about the whole concept and how to avoid this situation when I need to do these checks ?</p>