title: JQuery .split() property
body: <p>I have snippets of code that I don't quite understand</p>
  
  <pre><code>var row = $(this).prop('id').split('_')[1];
  var col = $(this).prop('id').split('_')[2];
  </code></pre>
  
  <p>I'm trying to manipulate checkboxes and they're on a table.
  What will be the array value that's gonna be set on variables <strong>row</strong> and <strong>col</strong>?</p>