title: push new element into array within hash
body: <p>I have a hash which, I have keys that uniquely identify each element within the hash.  And within each element, I have an array.  So my question is, how do I put another element inside that array within the hash.</p>
  
  <pre><code>{"Apple"=&gt;[1, 5.99], "Banana"=&gt;[5, 9.99]}
  </code></pre>
  
  <p>I'm looping through a result set, and I'm a little bit lost how to add another element to the array...</p>