title: increment value of a number with a specific timer-value
body: <p>I've tried and looked around but I could not find anything similar.</p>
  
  <pre><code>&lt;div&gt; &lt;span&gt;23&lt;/span&gt;/ 30 &lt;/div&gt;
  </code></pre>
  
  <p>My thought process here is that I want 23 to increment in 1 value every 15th second.</p>
  
  <p>And when it hits 30, it shall stop counting. I have no idea how to make it "stop" counting and how I should approach a problem like this.</p>
  
  <p>Any help would be much appreciated! </p>