title: How do I compare the length of element in array
body: <p>I have the following code:</p>
  
  <pre><code>sentence_array = ["hello", "hi", "bonjour"]
  </code></pre>
  
  <p>I'd like to be able to output the word that's the longest of the 3 elements.  I know I should probably use <code>sentence_array.each</code> but I'm stuck on how to proceed.</p>