title: Adding space between characters
body: <p>I want to add space after every two chars in a string. </p>
  
  <p>For example:</p>
  
  <pre><code>javastring 
  </code></pre>
  
  <p>I want to turn this into:</p>
  
  <pre><code>ja va st ri ng
  </code></pre>
  
  <p>How can I achieve this?</p>