title: How do you express a "null" value in Go?
body: <p>How do you express a "null" value in Go?</p>
  
  <pre><code>type Node struct { 
      next *Node
      data interface{}
  }
  </code></pre>
  
  <p>And I want to say</p>
  
  <pre><code>return &amp;Node{ data: NULL, next: NULL }
  </code></pre>