title: Split a String into Equal Length Chunk in Perl
body: <p>Let's say I have string of length in multiple of 3.</p>
  
  <pre><code>my $seq = "CTTCGAATT"; # in this case length of 9
  </code></pre>
  
  <p>Is there a way I can split it into equal length of 3?
  Such that in the end I have this array:</p>
  
  <pre><code>$VAR = ["CTT", "CGA", "ATT"];
  </code></pre>