title: What is this syntax?
body: <pre><code>i = 1, 2, 3, 4, 5;
  </code></pre>
  
  <p>this actually assigns <code>1</code> to <code>i</code>. </p>
  
  <p>*****I wonder if this type of assignment is actually useful somewhere?*****</p>
  
  <p>Do you know some application of this syntax?</p>