title: Sort multidimensional array based on 2nd element of the subarray
body: <p>I have an array like this:</p>
  
  <pre><code>[['G', 10], ['A', 22], ['S', 1], ['P', 14], ['V', 13], ['T', 7], ['C', 0], ['I', 219]]
  </code></pre>
  
  <p>I'd like to sort it based on the 2nd element in descending order.
  An ideal output would be:</p>
  
  <pre><code>[['I', 219], ['A', 22], ['P', 14], ... ]
  </code></pre>