title: Ruby. Why arr = %w{'a', 'b', 'c'} => ["'a',", "'b',", "'c'"]
body: <p>Coming from this question <a href="https://stackoverflow.com/questions/12616878/indexof-in-ruby">indexOf in Ruby</a>, </p>
  
  <p>Wondering why in Ruby 
  <code>arr = %w{'a', 'b', 'c'} #=&gt; ["'a',", "'b',", "'c'"]</code></p>