title: jQuery removing values from a comma separate list
body: <p>Given an input like:</p>
  
  <pre><code>&lt;input type="test" value="3,4,9" /&gt;
  </code></pre>
  
  <p>What's the best way to remove a value like 9, 4 or 3, without having issues with the commas, I don't want this ending up: </p>
  
  <pre><code>value="3,4,"
  value="3,,9"
  value=",4,9"
  </code></pre>
  
  <p>Is there a clean way to get this done in JavaScript/jQuery?</p>