title: javascript Regex unicode help
body: <p>in a JavaScript, i am using Regex to <code>split(/\W+/)</code> to words.  </p>
  
  <p>when i split this, it's returning wrong value</p>
  
  <pre><code>var s3 = "bardzo dziękuję";
  s3 = s3.split(/\W+/);
  
  
  [0]: "bardzo"
  [1]: "dzi"
  [2]: "kuj"
  </code></pre>
  
  <p>How to fix this problem? please advice</p>