title: How do I get child of a snap without knowing the key in firebase and firebase-admin
body: <p>I have a queue in my database that looks like this:</p>
  
  <pre><code>server
    queue
      -RANDOM_ID_1234
        active: "true"
        text: "Some text"
      -RANDOM_ID_5678
        active: "false"
        text: "Another text"
      -RANDOM_ID_91011
        active: "false"
        text: "Text that does not matter"
  </code></pre>
  
  <p>I want to query and get the active item:</p>
  
  <pre><code>queueRef.orderByChild('active').equalTo('true').once('value', function(snap) {
    if (snap.exists()) {
      console.log(snap.val());
    }
  });
  </code></pre>
  
  <p><code>console.log</code> will return something like:</p>
  
  <pre><code>{
    -RANDOM_ID_1234: {
        active: "true"
        text: "Some text"
    }
  }
  </code></pre>
  
  <p>How do I get the text without knowing the key?</p>
  
  <p>I used lodash (see my answer below), but there must be a better way of doing this.</p>