title: Is there a way to check if a var is using setInterval()?
body: <p>For instance, I am setting an interval like</p>
  
  <pre><code>timer = setInterval(fncName, 1000);
  </code></pre>
  
  <p>and if i go and do</p>
  
  <pre><code>clearInterval(timer);
  </code></pre>
  
  <p>it does clear the interval but is there a way to check that it cleared the interval? I've tried getting the value of it while it has an interval and when it doesn't but they both just seem to be numbers.</p>