title: Checking if an array has some items in coffeescript
body: <p>Is there some method in coffeescript that returns true when an array has some items in it? Like method in ruby <code>present?</code>:</p>
  
  <pre><code>[].present? false
  [1].present? true
  </code></pre>
  
  <p>According to <a href="http://arcturo.github.com/library/coffeescript/07_the_bad_parts.html">http://arcturo.github.com/library/coffeescript/07_the_bad_parts.html</a> an array emptiness in coffeescript is determined by its length</p>
  
  <pre><code>alert("Empty Array")  unless [].length
  </code></pre>
  
  <p>that seems so lame to me.</p>