title: Create 2d array from string
body: <p>I have the following string :</p>
  
  <pre><code>[[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,],]
  </code></pre>
  
  <p>How can I create a 2d array of strings from it ?</p>
  
  <hr>
  
  <p>EDIT</p>
  
  <p>I've removed html tags since they're not the problem here. Also I'd like to do it without using any additional libs to keep it lightweight.</p>