title: What does <<CONSTANT do?
body: <p>Reading an article and saw the following notation. Can anyone help me interpret? I've only seen &lt;&lt; used to push elements inside of an array, and my use of constants has been limited.</p>
  
  <pre><code>def template(title, date)
    &lt;&lt;TEMPLATE
  end
  </code></pre>
  
  <p>For further context, the full article is <a href="http://blog.arkency.com/2015/03/extract-a-service-object-in-any-framework/" rel="nofollow">here</a>.</p>